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2553 questions in the Category: general science.

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1: I have a question about the placement of the degree symbol. At the moment we learn how to calculate the specific heat. I was just wondering how our book writes C. Sometimes the little point is in front of the C, like this C and sometimes they write it after the C . Is there a difference between the two types of writing, or is it just because of the different type?
2: How can an egg turn into a person? I mean how do eyes, brain or other organs form?
3: How do conifers, holly and acorns (oaks) disperse their seeds?
4: I'm setting up a series of investigations of changes of matter with my 3rd grade class. One of the activities I have planned involves making playdough with flour, water, salt, food coloring, and cream of tartar. Could you also give me a list of easy-to-demonstrate examples of chemical and physical changes of matter (for 3rd graders)?
5: Where do cells come from? How were they made up?
6: I watched a spider destroy its web and it appeared to roll the silk into a ball. Will it eat the old web to help produce new silk?
7: I would like to know: Do dogs have a memory or do they just do things out of instinct and just know things? Do they have a memory "part" in their brain? If they do have memories, how is it compared to a human's brain? I personally think that dogs must have memories because for instance, if I scold and hit my dog today, in 3 days, if I raise my hand, even if it's not to hit him, he will most likely cover. So, this is because he remembers what I did, right?
8: I know that leaves are green, but they turn yellow and red in fall. I think they are drying up, but I don't know why. What happens to leaves ?
9: I always wonder why my hair get's white. My friends told me that it's because I get mad. But when I get mad , how come it doesn't get white in that moment?
10: Why some insects can run across the surface of water?
11: I know that old people have to be healthy. Why can't they eat candy? What happens if they eat a lot of candy?
12: Do sea mammals drink sea water or how do they drink water?
13: Where did all oxygen in the air come from? Was it all formed when photosynthesis started? What was the atmosphere made of before that?
14: We would like to know why butter is formed when whole milk is shaken in a baby jar?
15: How does Jell'O turn from liquid into solid when it cools down?
16: I have a student who claims he has seen a new moon (i.e. he could make out the shape in the sky, albeit very faintly). Do you think this is possible (either during the day or the night)? My understanding is that a new moon is positioned between the Earth and the Sun, making it impossible to see at night, and not in a position to reflect light to Earth during the day.
17: Could you please tell us the colour of the polar bears skin?
18: Do all people see colors the same way as I do? I know some people are color blind but I am thinking of people who can see colors.
19: We are kind of interested in dyes. If you dye your hair how do the dyes react with the hair? We know when you use watercolors or so it washes out but the hair dye products you can buy don't.What makes a dye stay in hair but also in fabrics like a T-shirt? Again, when we color our T-shirts the color washes out but when you buy a colored shirt they do not.
20: Why do all the planets in our solar system orbit the Sun on a relatively level plane? How come there aren't planets rotating at angles of, say, 90 degrees from our perspective?
21: What is an acceptable body fat range for teenage boys and girls that is NOT likely to lead to health problems later on in life? What would an athletic body fat be for teenagers?
22: There was an experiment the replicated atmosphere of young earth. Electricity was used to simulate lighting. I have heard that the problem with this experiment is that the atmosphere they created in the experiment is not the same as what scientists believe young earth's atmosphere was really like. Is this true?
23: How can an airplane go so fast while it's in the air?
24: What forces are inside the magnet that make them stick together or not at all?
25: How can it be determined if rain is acid rain?
26: Hi! I have a question regarding behavior disorders, specifically conduct discorder & antisocial behavioral disorder. I am wondering how a person gets this disorder. Is it genetic or environmental? Also--what is the chance of someone having this disorder? Is there a greater chance of a male getting this over a female?
27: Why are rainbows bent? Is it because the water reflects?
28: Why does Venus rotate west to east instead of east to west.
29: Why does lightning occur? Why does lightning have branches? Does lightning only form in storms? Does every strike of lightning hit the ground?
30: What scientists represent best the changing nature of science?
31: I would like to know some scientists who came up with the first antibiotics. Without these people where would we now?
32: I have to study a scientist in a certain field and my question is , can you give me any names of people who are involved in the history of the computer?
33: In our Biology class we are doing a paper about a scientist and how they have changed a particular science. We were instructed to seek you out for help in finding a scientist. I would appreciate it if you could respond with a scientist that has something to do with the modernization of computers. Thank you
34: What is the difference between a tidal wave and a tsunami?
35: How do you take caffeine out of coffee? I have heard that it is not healthy to drink decaffeinated coffee because of that process.
36: I have read that Europa, one of Jupiter's moons has water on it. Why is that and do the other moons have water too? If not, why not?
37: Why do apples turn brown when you cut them? Why does it help if you put them in the refrigerator?
38: Why are some people color blind?
39: How was carbon found? And were was it found?
40: Does the devil really live in the middle of the earth or where?
41: What is the ecosystem? What are some common ecosystems?
42: Why do some parts of the ocean turn over, while others do not?
43: When was the first actual human existence started and did we evolve from primates?
44: How do Scientist help us in life? How did they chance life? Did they make life better and/or worse? Is Life science better then Physical science and which one is easier to learn and why?
45: Is the Loch Ness monster real?
46: Who was the first scientist?
47: What determines how salty the oceans are? Do the oceans still get saltier? I have read that the oceans are in a"steady state" but where does then the newly dissolved salt from the streams go?
48: Who were the first people to know about science?
49: I am suppose to look for a scientist that has no credit,little credit or people you haven't heard of a lot. Can you please give me any suggestions?
50: Why is the sky blue? Why are different flowers of different colors?
51: What makes cucumber seeds cause burps? And how could you demonstrate that in the classroom? People grow the seedless cucumbers for this reason.
52: How does the type of soil, light, and water affect a plant?
53: Why do people hiccup?
54: How was life started?
55: Is blood a solution or a suspension?
56: I simply want to know what is the scientific definition of a stone or rock? Are ice and gold stones?
57: How long does it take to "grow" an exoskeleton after molting?
58: Are ther any charts that shows the stages of rotting for any type of produce?
59: Can you give more information on how you can set a one dollar bill on fire but it does not burn if you soak it first in a alcohol solution.
60: Why in nature, do most flowers have a Fibonacci number of petals?
61: How long does it take for a swell shark egg to hatch? How big will the swell shark be and how does it know how to survive?
62: My classes have been watching a video produced by the Discovery Channel on bacteria. At one point in the video, the narrator says that human babies are born "bacteria free" but within a few hours hundred of kinds of bacteria colonize them. I can't believe that we are born bacteria free. Is this true or is this a mistake in the video?
63: Please explain the pH scale: If acids have more H+ ions, why is the number for acids less than (1-7) bases on the pH scale?
64: Are dogs really colorblind?
65: Why do old people forget things?
66: What would happen if you mixed sodium with polonium?
67: My school's science fair is coming up soon and I still don't have any ideas for an experiment. The project has to be an experiment, it can't be a display. Can you give me some ideas?
68: How long do tobacco products last inside the body?
69: How long do the effects of tobacco last?
70: What is the most deadly disease a person can get? What is the most common and rare disease people can get? How will science help us in the future and why do we learn about science?
71: How is the button formed by the caterpillar just before it becomes a chrysalis? (just before it hangs down like a "j")Is it from a mouth part or an anal part?
72: Why is most of the land on Earth in the Northern Hemisphere?
73: Why is there so much sand in the desert?
74: What was the first virus?
75: What is the deadliest bacteria?
76: Why do I see green color spots after I stare at red color for a long time?
77: I need some info on PVC plastic. I need to know the process of making it and all the chemical reactions involved. Thankyou
78: How is nail polish made? What ingredients are used and what chemical reactions occur when making it? Chemically what is happening?
79: What ingredients are in lip gloss/lipstick? What chemical reactions and chemical structures are there in the process of lip gloss making? How does lip gloss work chemically?
80: What are the main ingredients used to make sunscreen? What chemical reactions are there? How do these ingredients work chemically to help protect the skin from UV rays? Can you please help me find some good sites relating to sunscreen...
81: I need to know like what kind of chemicals are in lip glosses and how it is made.
82: Do the chemicals in lip gloss damage your lips if worn too often?
83: What are the global consequences of all the fires burning in the Northern Hemisphere (i.e. Western U.S., Russia etc.) Would there be any connection with the amount of rain for the season, since water vapor must have something to condense on. THANK YOU
84: I am a student in Mr. Bausback's Honors Chemistry class and I am looking for an idea for a science project. My partner and I are interested in finding a mentor and some ideas for a good project. We are interested in computer science and physical science, please send us some ideas, thanks.
85: How many calories does one pound of fat have?
86: Is there still a need for an archeologist or paleontologist? Does it really matter if we find all the bones from extinct animals or know what animal evolved from what?
I am asking because I think it is fun digging out bones, but I am not sure if it is useful.

87: Why are spring tides called spring tides and why are leap tides called leap tides?
88: We are student teachers in science education in the Teacher Education Program @ UCSB. We are working on a lesson plan that researches the work and story of Dr. Jerri Nielsen, the physician who was stranded @ the South Pole Research Station in 1999. We were wondering if you could offer us any insight or information about her or your perspective of her as a scientist. We are required to ask a scientist from this university for this information. Any information, opinions, or help you can provide would be greatly appreciated. Thank you.
89: Why is lipstick made?
90: Why does it hail ?
91: Is fire a natural light source or is it artificial?
92: What is weather? What is climate?
93: Was Atlantis real or was it a myth?
94: How can ocean temperature change atmosphere temperature and be the cause of El Nino?
95: When you find the number close to the area of a circle, where you keep putting more and more sided shapes on the inside and outside of the circle, can you just do that with triangles and find the average of the two numbers and get the area of the circle?
96: I have asked you guys a lot of questions before, and I was just wondering do you look up the answers or do you already know them?
97: how do you kayak we can't find anything on that subject. how do you teach beginers.
98: What is the future prospect for Marine Biologist? Or where could I find this information?
99: Why can't I feel the spinning of the earth?
100: What does 0.1 cm3 of water weigh in grams?
101: Hello, I am in the teacher education program at UCSB. I am working toward becoming a science teacher. I am constructing a lesson that I will give to secondary school students. I would like to ask your advice/feeling toward creating a lesson based around the achievements of Ben Franklin. Ideally the lesson needs to be about a scientist who differs from the traditional representation of scientists. Do you think Ben fits the traditional model, or do you believe the achievements he made sets him apart form the stereotype of a scientist who is a white male, and is detached from society. Your prompt response would greatly be appreciated, along with any suggestions you may have toward designing my lesson.
102: Can you please tell me why motion pictures look like they're in motion when we view them, when in reality the film is made up of single frames (photographs) that aren't moving at all? And along the same lines, why do we see "flip-books" as action in motion? (I'm looking for a scientific phrase and/or term to help me describe the how and why of the process.)
103: What is so important about science?
104: I'm going to be student teaching in 2nd grade starting in January. I'm doing my big unit on light and shadows and was looking for pictures of scientists as we will do our unit using scientific inquiry methods--I want to build up the idea of being scientists. What could you do with the students in this class during our unit? Do you have materials you send out or would they ask questions over the internet? Also, can you tell me what type of guest presenters you might suggest for 2nd grade and careers that deal with light and shadows?
105: Where can I get a sample of several items that will help me to answer what substance keeps fresh flowers the longest?
106: I have a friend who is exceedingly tall in height and is curious if there are any ways, methods, or operations that can be done to shrink one's physical height?
107: Hello, I am a high school student who was assigned a career investigation research project pertaining to field a of biology. I choosen to research the lovely field of Marine Biology. The following is a list of questions that I am required to find out from someone with knowledge on marine Biology. So please write back answering my questions to the best of your abilities. 1. A typical job description for a person in the profession field of marine biology. 2. Regiongs where there is a demand for this prfession. 3. A typical pay scale for this profession when starting, after 5 yrs., after 10 yrs., after 20 yrs. 4. Any unique risk for persons in this profession
108: What fundamental, basic science facts should all People know? In teaching science, especially at lower levels, teachers must make hard choices about what material to cover, and what we must reluctantly leave out. While I'd love to see educational and political forces pushing to increase emphasis on science education, instead, we see increasingly science taking a back seat to other subjects. Many students are reaching junior high without having had any formal science education, and often having critical misconceptions about the universe in which they live. I'm looking for the opinions of scientists on these questions. What basic ideas should all students know? What science skills should all students possess?
109: Is there life after death?
110: How do seeds form?
111: My science classes need more hands-on activities involving biochemistry. Although the are only 8th graders, the California State Standards are tested quite rigorously. Can you suggest any lab work that might address the following state standards: Standard #6 a)Carbon, because of its ability to combine in many ways with itself and other elements, has a central role in the chemistry of living organisms. b) Living organisms are made of molecules largely consisting of carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulfur. c) Living organisms have many different kinds of molecules including small ones such as water and salt, and very large ones such as carbohydrates, fats, proteins, and DNA. The labwork we do always gets into the chemical structure of the molecules and how they interact on a very basic level. Thank-You for any help you may offer.
112: What instrument is used to measure inches of rain? How can I do it at home?
113: What elements make up ketchup?
114: I wonder if someone can live up yo 200 years old
115: Are oil rigs good for our community or not? And if it is how?
116: Do you think in 50 years if people will be living on the moon?
117: How do we use wind energy?
118: Do you have full professors teaching freshman classes?
119: One of my students and his father asked: Would a bomb explode in space? Since space is a vacuum, I was not sure what would happen.
120: How do fluids affect meteorology?
121: I am afraid of flying. How is it so safe when there are so many working parts. I always believe that the more complicated a machine is, the more likely it is to fail. Can you explain why airplanes don't crash more regularly.
122: What causes fog and what types of fog do exist? (I like to know more about fog banks especially - like problems they cause, reasons for formation, how to dissipate it).
123: Why do viruses attack other cells? They are not alive, so how do they know what they want to do?
124: Why when you fill up a balloon with helium does the balloon eventually lose the gas?
125: What makes ice to melt faster?
126: Do we need sun to survive?
127: What caused the planes in the Bermuda triangle to go down?
128: What affect does the earth's tilt have on the seasons?
129: Is there really life on Mars?
130: How does weather affect the way we live?
131: Were Adam and Eve the very first people on Earth? If they were, were the dinosaurs living or were they extinct?
132: Hi Science Line, I had my secondary science student teachers conduct a toxicology investigation following a standard protocol. They investigated the effects of a toxin of their choice (diet Pepsi, nail polish remover, etc.) on the germination and growth of lettuce seeds. They used six different concentrations of the toxin, three plates per concentration, five seeds per plate. They counted the number of seeds germinated per treatment and measured the length of the seeds' radicle in mm. My questions: (1) What is the appropriate number of significant figures to use when calculating the average germination and average radical length? (2) If a seed hasn't germinated or has germinatd but has no radicle, do you include a 0 for radicle length when calculating the average or do you leave it out of the calculation all together? Thanks much for your help!
133: How weather can be predicted?
134: How many tornadoes do we have a year?
135: Why do we have hurricanes?
136: Are there any snakes in Hawaii?
137: What does food coloring do to plants?
138: How many hurricanes do we have a year?
139: How many Egyptian hieroglyphics are there?
140: What is the difference between a hurricane and a tornado?
141: Are human disabilities (ADD, ADHD, ect.) have anything to do with the environment around us (air quality, number of plants, ect.)?
142: What causes evolution?
143: What was the first thing ever invented by a scientist?
144: Why did people evolve into different races?
145: What came first the chicken or the egg?
146: Is teleportation possible yet? I have heard of tests on it, but I want to know more about.
147: Can you see into the future?
148: If a man was hanging from a live cable on an electricity pylon without earthing himself he should suffer no harm. My question is in two parts. a: If the man simultaneously touched another cable of the same voltage and polarity, would he suffer an electric shock. b: If the man simultaneously touched another cable of a different voltage but the same polarity, would he suffer an electric shock. Thank you in advance, Regards, Chris Knox.
149: What makes the sky blue?
150: What happens to a human being when subjected to space with no oxygen or protective suit? I have seen many explanations but I would like to know the exact reaction. Many Thanks
151: Why are all the electrical outlets in hospitals upside down?
152: If you put water in the sun, why does it evaporate?
153: Where can find out about Australian Scientists.
154: I need a good,cool science fair project because I dont have any idea what to do? Thank You!
155: I'm interested in applying for a patent for a new type of rain dial that I created, and I don't know how. Can you tell me? I don't think I have enough money either so can I find someone to help me? Thanks a lot.
156: Are UFO'S real?
157: What is so special about area 51?
158: What percentage of humans in the world are albinos?
159: I blew up a rubber balloon and a foil balloon and measured their circumference over a period of four days. The foil balloon deflated more. I am not sure how to explain why the foil balloon allowed more air out than the rubber one. Any ideas?
160: What will happen if you put a marshmallow in the sun?
161: What is the most important thing do once a new specie or animal is found to be endangered?
162: What method do scientists use to count the number of species within a population?
163: Why is it so important to protect all species? what would happen if all animals survived?
164: Why does big red gum wrappers burn your skin?
165: Are toilets made of metal?
166: How many kinds of animals are there?
167: Why is T-rex extinct?
168: Why in the Hiroshima war did rain turn black?
169: When you put on a space suit, how can you breathe in space?
170: What would happen if you gently released a cubic foot of luke warm water into outer space? What would happen to the water? Would it stay together or separate into thousands of tiny particles? What if you did it to air?
171: We will be looking at newton's 3 laws around Halloween.For the 2nd, f=mxa, I would like to contruct a giant spider web and give some force facts about spider silk and webs. How strong is spider silk?How strong is a spider's web? How much force can silk withstand? How much force can the whole web withstand?If you have any more ideas for the holidays, please send them! Thanks, joan.
172: What kills botulism?
173: I did an experiment the other day where somebody lies down and pushes their hand up while somebody else tries to push their hand down. Then the person lying down eats some sugar and then repeats the pushing experiment. Why does the person lying down weaken?
174: Are marshmallows somehow made out of pig skin or any animal? What are they made out of?
175: What characteristics of living things does a river have? Is a river alive?
176: In measuring radicale growth length of lettuce seeds in a toxicology lab at GGSE, While handling the tender radicales, I broke many of them in my attempt to measure them. What should I do with these results? Do I try to estimate the length or throw out the results?
177: Is the Nanotechnology Field market-driven? If so, what are the dollars that are being put into this field? Who is the highest contributor? Is it the business or government sector?
178: If we put plants on Mars, will we be able to live there in a couple hundred years?
179: How many planes are in the air per day, military and private?
180: Are you aware of any international treaties or agreements being developed to control the use or access to Nano Technology?
181: Just how do I find out, on average of the cost of a department store, and how much does it cost an hour?
182: Why do we use nuclear energy if it is so harmful?
183: What is a summary of scientists observations and conclusions about cells called?
184: Is there a possibility that radioactive fallout or waste could cause a mutation that causes plants to change colors, like instead of being green the plant would be red and purple?
185: Date of Winter Solstice this week and Summer next year.
186: Would you be able to direct us in finding the answer to the following question. How will scientists choose the plants and animals to take on interplanetary ark to the first permanent colony? Which ones will rank the top ten?
187: I want to measure electrolytes in sports drinks. I have a voltmeter. How do I set up the experiment? Thank you.
188: Where does drinking-water come from?
189: Are sasquatches real?
190: How many people are in the world and how many of them are gangsters?
191: How many people hade died in all the American wars?
192: How many poeple died in a fire and how many lived?
193: Here in KY. we had 5500 turkeys freeze to death at a turkey farm, someone turned off the heat in their barn. Why didn't the turkeys and or chickens at the local farmers freeze? They have no heat in their barns at all. But yet at the farms raising only turkeys, thousands of them they freeze to death without heat.
194: What is science?
195: How do you define "property"?
196: For my science fair project, I am hoping to test which area of Mammoth (i.e., roadside, mall, wildernesss roadside, etc...) has the most polluted snow. However, neither my science teacher or I could figure out how to test the pollutance of snow... how could we?
197: How did the first living things get life?
198: What makes a marshmallow to dissolve?
199: My teacher said that the microbiology labs throw away petri dishs and a whole bunch of other materials. My question to you is can I get some of those used petri dishs and other materials ofr my scinece fair project?
200: Will I still be able to become a marine bio if I have resource math class ?
201: Who made the atomic bomb?
202: What in your oppinion is a great 6th Grade Science Fair Project?
203: I was wondering what Science Fair Project you gave the highest scores to?

Thank you for taking your time to look at my question.

204: I heard somewhere that scientists have found evidence to suggest that particles seem to disappear randomly and others seem to appear randomly. If this is true, what kind of particles are disappearing and appearing, and where are they going and coming from? Is it to out there to suggest that if whole particles can disappear and appear why a small organism couldnt appear or disappear?
205: I need a suggestion on what to do for a project it can be on earth,life, or physical science aslong as i can test it at home.
206: Hi how are you? Well I was just wondering if you think that making my own lava lamp would be a good science fair project? Thank You!
207: Is it possible to detect if global warming is affecting the Santa Inez River?
208: What are bathroom sinks made from
209: I have heard that placing an object such as a spoon into the neck of a champaign bottle will keep the champaign from going flat. Is this true? If so, why does it work?
210: Some honey are very expensive while others can be quite cheap,which supposedly corresponds to their respective quality.

How is the quality of a particular honey determined?

Some types of honey crystallize after some time.

Has the tendency to crystallize any relation to the quality of a honey.
Are there any way to reduce or prevent a honey from crystallizing?

211: I have to test the performance of the pivoting strategies when the matrix being factorized is banded. Therefore I have to generate a random matrix with band with p and dimension n. How could I explain errors and the growth factors? What can produce using different strategies the amount of fill-in? What will usually happens, what the worst that can happen? Thanks a lot.

What can I notice about the errors and the growth factors of LU factorization? And how are they related? How could I explain these to some one? Thanks

212: We were doing an experiment with vinegar and some fossils. We poured the vinegar on the fossils and they fizzed. In about an hour we saw whitish crystals, some were slightly rusty colored. We wondered what this was and what caused it.
213: I'm doing a Sciene fair project on the northern lights. Do you know if there are any expiriments that a 6th grader can do relating to Aurora Borealis?
214: Does music have any effect on plant growth, if so why and how?
215: How do we turn ocean water into drinking water?
216: How do tsunamis form? What are some signs that a tsunami is coming or if one is near? What should you do if you are at the beach and a tsunami approaches?
217: How do wheather satellites work?
218: I am doing a science fair project on space robots. I am trying to find out if space robots work better powered by batteries or solar panels. Can you suggest any experiments I may be able to do to come to a conclusion?
219: What dinosaurs lived the longest?
220: How much higher were the levels of CO2 in the atmosphere in the times of the dinosaurs?
221: Were there more plants and trees in the invironment when the dinosaurs were there?
222: I am actually a parent asking this question. My daughter's class is studying space and we went to the astronomy day at the museum last week. I personally have an interest in buying a telescope. I found what appears to be a quality scope at a good price, but is it a good enough scope? Which is a better deal? A 6" reflector telescope with an aluminum stand for $185 or a 8" reflector telescope with a steel stand and motor ra for $485? Is the 2" difference worth the extra $300?
Thank you

223: On the endangered species scale, what does "EW" stand for?
224: What is global warming causing?
225: On the conservation status thingy, how many of the species does there have to be considered each level of endangered-ness?
226: Hi, I have several questions regarding essential oils. Please answer as many questions as you can that is within your expertise. For each of the following naturally occurring oils:
Citronella ,eucalyptus,cinnamon leaf,nutmeg,clove,rose,jasmine,lavender
a) How easy is it to produce each of them chemically as compared being extracted from natural sources?
b) How effective are the chemically produced ones for each of them compared to the ones extracted naturally? Are there any harmful effects using the chemically produced ones?
c) In the market ,if one does not know the origin of a particular oil, how likely are each of them to be produced chemically as compared to be natural?
d) Apart from laboratory tests, are there any other way of distinguishing between the two?
e) When the lid is taken off a bottle of the oils, the oil evaporates to fill the room with its aroma. But after sometime, no more oil evaporates unless one stirs it. Why is it so?
Thank you.

227: Why don't we just swich to all nuclear power? What are the negatives? (Besides it is dangerous)
Do any scientists disagree that humans are in fact the cause of Global Warming, and that global warming is due to high CO2 levels?

228: Why does gravy get skin on it as it cools?
229: How many times can one sheet of paper be recycled?
230: Why does a marshmallow expand when there is no pressure
231: A group of students and I have designed, funded and built an alternative energy unit. This unit consists of a solar cell and a wind generator (PMG). We are attmpting to determine which method of alternative enregy production is best for our local area. We are trying to measure the voltage produced by each device, along with a voltage drop across a shunt resistor to calculated the amperage from by generators. With these two quantities we are able to calculate the power each produces. We are using Vernier Softwares LabPros and LoggerPro 3.4 on a laptop PC. Our problem is that when more than one voltage probe is connected, the readings that are recorded are bogus. When only one voltage detector is connected, the readings are spot-on. We have worked with Vernier and tried several different voltage probes. The same results. We believe the problem is the common connection through the LabPros. There is no one negative ground. How should we change our detection circuit to get good readings. Please see our website for pictures and details. URL: http://www.spring- lake.k12.mi.us/AltEnergy/AlternativeEnergyIndex.h tml. Thank you for your help.
232: Bryce's history teacher was talking about the atom bomb the other day and mentioned heavy water was used to make it. She asked her students if anyone knew what it was because she didn't know what it was. So, what is heavy water? Is it naturally occurring or is it man-made? Is it only used with the atom bomb or does it have other uses?
233: How can we get fossil fuel from under the sea bed?
234: I have heard that there are two main theories to the evolutionary origins of life, RNA first and metabolism first, can you give me some information on both?
235: This summer there seems to be more rocks up against the cliffs at the beach and less sand. Also the tides seem to be higher, rarely on the minus side and usually plus 3 - 6 feet. Is this usual?
236: I know how long it takes for light to reach us but how long does it take for heat to reach earth from the sun?
237: What are the three branches of life?
238: Around mid august 2007 there was a dark line or shadow that went from horizon to horizon across the sky. It went through the middle of the sun as to divide the sky in half; it was around 11:30 am and it only lasted a few minutes. What was this? What caused it? Note from ScienceLine moderator: (Seen at Madisonville, KY)
239: Why do the masses of pennies vary over the years?
240: Why is the inside of a car hotter than the outdoor temperature on a sunny summer day?
241: What is one characteristic of a good question?
242: Is it safe to eat snow?
243: What is the Earths thinnest layer?
244: What tool is used to record earthquake waves?
245: Why can fire spread very quickly in a forest?
246: I will be doing an experiment that will show a balloon filled with air and a balloon filled with water over a flame. Witch one will pop first?
My first question is: Can you think of the importance of this in the wider world? Who else will care about the results, other than people who try to pop balloons? I was told that I also have to consider and think about natural water (lakes, oceans) and how their heat capacity might affect their surroundings (would those surroundings be warmer/colder than areas without large water bodies?).
My next question is: Will it matter how big the balloon gets when you blow it up or fill it with water?

247: Why the heat from the Sun can enter the atmosphere easier than it can get off from it?
248: What physical ailment can happen to the red blood cell?
249: What makes the banana spider silk so strong? What makes up the spider silk?
250: Can you extract atmospheric CO2 in order to reduce global warming? If so, how would you do it?
251: Can animals like cats and dogs even comprehend something like math? I heard a story once about a horse that could stomp it's hoof as many times as the number you held up with your hand, but it turned out that he could just tell when you tensed up and would stop there. I also heard this theory once that there was nine dimensions other than the three dimensions that we see and that it was impossible for the human brain to even comprehend it. I'm just curious if animals with less developed brains than us can or can't comprehend some of the advanced things that our brains can. Thanks,
252: How can you indentify an index contour in a topographic map?
253: What is useful of a topographic map?
254: If you put a mento mint in diet coke, would it really blow up?

My teacher wants to know why there is yellow snow. Not because of animals either. Can you help me?Thank you.

256: Why do youn cry when you are hurt or sad?

I am a general science teacher at Righetti High School.

My students were wondering what the effect the hole in the ozone layer has on the environment. Does this have any effect on global warming?


258: What is the chemical composition of fire retardants used on clothing?
259: Can you tell me how space can be a limiting factor for a population? Can you give me some examples?
260: Are there skunk problems in Santa Barbara?
261: Do skunks get accidentally killed?
262: What impact do skunks have on humans?
263: What are the skunk's worst enemies?
264: Are skunks bothering people in Santa Barbara?
265: If an astronaut died in space, would he decompose? (no bacteria but what about radiation?)
266: What type of bridge is built the most? Which design is the strongest? How are they tested? What materials are the strongest? How much planning goes into the design? How often are bridges checked? How are different bridge designs selected?
267: My class & I have been talking about global warming and the effects it has on our climate over time. Recently, NPR, a National Public Radio station did a story on carbon sequestration in Norway. We are wondering what the long term effects/possible hazards will be of this. Could this solve our global warming problem? What would happen if all of a sudden all this carbon dioxide were to escape? Any information on how this process works and the effects on the environment would help, too. Thanks!
268: How was earth created and how did life begin on this planet?
269: If a person is subjected to a certain amount of radiation whenever they fly, how is it safe for airline pilots to fly every day? I also heard that some people say airline pilots can be considered "radiation workers." What does this mean?
270: Why is it more difficult to steer a bike when your hands are close together on the handle bars?
271: I am studing the effects of ethylene on fruit ripening. I found an experiment that requires Potassium Iodide(KI) and Iodine(I) to make a stain for the fruit. I can't find the Potassium Iodide anywhere! Can you help??? I need to get going asap. Thank you for your help. Madison

As the Science Department Chair at the Dunn High School, I would like to cater our lab report style to that of the majority of UCSB undergraduate science courses.

Do you have a standard format for written lab reports?

For example: Introduction, Materials and Methods, Results, Discussion)

Pre-lab Questions, Purpose, Hypothesis, Relevant Equations, Apparatus, Procedures, Raw Data, Results, Discussion, Conclusion, Post-lab Questions

I would appreciate any feedback you can supply. Thanks,

273: How come whenever I go round and round in a circle it looks like I am going very, very fast, when really I am going very slowly? It is so strange. I very much want to know! So, if you have an answer please send it to me. Until my next question, good bye!
274: When I mix Cayenne Pepper and cinnamon in hot or cold water, after it settles the pepper and cinnamon gather into some kind of goo. What is that?
275: Is there any scientific evidence for the existence of Pegasus?
276: I am starting a science project about the different environments to grow up mushrooms. Do you know where can I get the mushroom spores and how long does it take for them to grow? I really need your help!
277: What is a Satellite ?
278: How do the areas of sunlight in the two hemispheres change over the year?
279: In order to combat global warming, would it be possible to electrolyze carbon dioxide and other greenhouse gases to produce oxygen and stop the greenhouse effect?
280: Where did the energy for Pangaea come from?
281: If energy is destructive then how did the "big bang" make the earth?
282: There has been a lot of studies to show the numerous benefits of taking soybeans. However, there are also claims that taking a lot of soy may cause tumour in the body and may make a man more feminine. To what extent are these claims true?
283: I went to Goleta Beach today to pick up some kelp for my science lesson this week. I found some really neat holdfast at the end of a mass of kelp! I cut it off to take that home. I have attached a few photos of it. Could either of you tell me more about it? It makes sense that the holdfast would be on the ocean floor. But I wonder about the shells attached. Do either of you know what kind of sea creature that this type of shell is from? These shells are also all over the beach. Is it typical for shelled sea animals to be underneath the holdfast of kelp? I'm interested in doing an inquiry type lesson with my class (for social studies) in addition to my science lesson, but I'd like to know more about what I found. This structure is very interesting!
284: Does a car with a full tank of gas get lower gas mileage due to its added mass than one with say, a quarter tank of gas?
Could you explain this to me in terms of Newton's 2nd Law and the work-energy theory. Thank you!

285: How did the people start talking and making the new languages of their own if they did not know from a long time ago how to talk?
286: How many species related to dinosaurs are left in the world today, and where do they live?
287: How come soy sauce doesnt freeze?
288: I heard that in quantum physics there is something like 11 dimensions. How would you know if something is coming from a different dimension or something like that? What would be an example of something going through or coming from those different "degrees of freedom?"
289: Why is it hotter at the equator than at the poles?
290: I live in Arizona where it does not rain very much. When it rains, I can hear frogs croaking. Where do the frogs live when it does not rain?
291: (Scientists have said that all the ice in the north pole will be gone by the end of this summer) Will the ice melting this summer cause global flooding, will if affect the ice covering greenland, and will it affect the North Atlantic Current?
292: Why is there so much oil in the middle east?
293: How long does it take to pickle an egg?
294: How does a seed form?
295: Does your heart really stop every time you sneeze?
296: How does noise pollution from traffic affect the environment? What animals does it specifically affect?
297: Was the Santa Barbara Channel formed by a glacier or was it formed by plate tectonics? Also, how did it become so deep because I was told it might have been formed by Santa Clara river draining into the channel over millions of years? Thank you very much
298: I was wondering if there was any way to split toxic, polluting chemicals into their constituent parts of hydrogen, oxygen, and carbon, and then maybe combine the hydrogen and oxygen to make water for the water crisis and use the explosion from that to power homes or machinery. I think it's a stretch of the imagination, but is there any way for it to be possible now or in the future?
299: I noticed that this summer we had lots of sun in Ventura and very little red tide and wondered if there is a connection? Has this been studied? Hello to all of you grad students.
300: Do we inherit our fingerprint traits? And when you get a cut or injure finger and it breaks the skin does your fingerprint "grow" back ? Or does it change?
301: Why doesn't Elmer glue stick to its bottle?
302: What is the "pull on sap"?
303: Desertification is increasingly becoming more of a problem, is there a way to reverse it once the damage is done.
304: Can olive oil be used more than once? Why?
305: Why is it that when you are driving in a convertible in the rain you do not get wet?

I was watching Modern Marvels and they were talking about things that used extremely high temperatures. On the show they showed something called a plasma converter. What it does is it uses very dense plasma at 30,000 degrees F to basically melt waste into its constituent atomic elements. It said that no matter how hazardous the waste is, it still gets broken down. They also said that it uses more energy, and that the byproducts are hydrogen and other gases that can be used to produce energy for the converter and the extra energy used for other things. It also creates an obsidian-like stone that has potential for a road base. I would like to know:

a. Is this being used around the world and to what extent?
b. What is being done to make this a more common use for energy and getting rid of waste?
c. What are the cons to something like this? Do they outweigh the pros?

307: What are electrons made of?
308: If sound waves generate energy, is there any way to capture that energy (in places like airports, noisy cities, subways, etc) and use it as an alternate energy source?
309: What could we do to clean non-point pollution sources? Is there any way we could clean some of the more obvious (i.e. runoff from golf courses)?
310: How does the way one dresses affect their impression on others and what experiments can done to show this?
311: Since water conducts electricity, if a persons entire body is soaking wet would that then make being struck by lightning make it more life threatening?
312: Let me begin by saying that I'm not talking about the Goldilocks zone of life habitability on the planet earth, but rather human habitability here. The question is how far, or how close would we have to be to the sun to make our planet uninhabitable for us humans. Would 5,000 miles do it? 10,000.? Would it help to know the temperature of spacecrafts circling the earth and their various positions in relationship to the sun at different times as they circle?
313: What happens to a marshmallow when the marshmallow is microwaved?
314: When baking, how does pam prevent dough from sticking?
315: When putting your finger through fire, why doesn't your skin burn?
316: Is it possible that the saliva can break down metals in your mouth, for example a tongue ring or a cavity filling?
317: I have two questions that both involve the concept of an exothermic reaction. A)why does a soft roll material need to be applied to skin before a cast or splint can be applied? B)After it is in place, why are nurses told not to place a recently casted extremity on to a plastic pillow for support before the cast is dry?
318: What are the possible outcomes of the atom accelerator in France?
319: How do "ionic" hair dryers affect the hair, short-term and long term?
320: What would happen if you froze a marshmallow and then tried to burn it?
321: Why do human beings feel pleasure when they hear music?
322: I am doing a science fair project on ocean wave power and I would like to know: What are some of the things you can do to wires, motors, in order to be able to run electricity through them, so that I can put them in water without them getting damaged in any way. Please help me.
Thank you very much for any advice you can give me.

323: Skeptics of global warming sometimes say, "Well, ice just melts" (Referring to the melting of the ice in the ocean and over green land). Considering that the great lakes were formed because of melting glaciers thousands of years ago in a time before cars and dirty factories a) Doesn't that mean in fact that ice just melts? b) What would have caused that ice to melt? c) Were there more volcano eruptions then than now?
324: Is there anyway to make yourself dream more frequently?
325: Recently, I was at Cedar Point Park in Sandusky, Ohio. While there, I watched the ride "Top Thrill Dragster", in which a train gets launched at 120 mph towards a 42-story hill. Many times as I watched, the train did not get all the way to the top. When this happened, the train was brought back down and reloaded, with the heaviest people in the front and the lightest people in the back. Why did they do this?
326: Why do your ears and nose continue to get larger as you age?
327: When riding a roller coaster at Cedar Point I noticed that some rides warn you that the roller coaster is not always able to make it all the way up the first hill and if it does not it will slowly come back down. I was wondering why this happens sometimes and most of the time the roller coaster runs smoothly. Thank You,
328: Whats the original shape of a dinosaur?
329: Does invisible ink have a chemical reaction? How does invisible ink work?
330: How do trick candles work?
331: why does a can implode when it's heated and turned into water with ice.
332: How does the releasing of dopamine in the brain cause people to feel good?
333: I am doing a science fair project and my question is: "Do non-video game players have faster reactions than video game players? I was wondering if there is any way at all to improve your reaction time. If you have any information that you think will help me please answer to my question. Thank you!
334: Why doesn't Europe have a cold climate more similar to that of Alaska and northern Canada?
335: What is the chemical reaction that makes pop rocks pop?
336: Since we have problems with too much trash, but also water resources in California, my question is: Is it better to use paper napkins or to use cloth napkins and wash them? Which one is less environmentally threatening?
337: How do dry chemical heatpacks work?
338: Why can't you put pineapple pieces into jello?
339: How does liquid affects a marshmallow?
340: After swimming in a pool for an extended amount of time, your eyes burn from the chlorine. Why does putting milk in your eyes help the burning sensation?
341: How is the light produced when an object is burnt?
342: What are your views on pesticide use? Do you think their use is dangerous to the environment? If so, what do you suggest we do to decrease pesticide use?
343: What liquid works best in making invisible ink?
344: What is a Galvonometer?
345: Are polar bears being extinct and why?
346: If one were to have a iron content in their blood, would they be more likely to become electrocuted or possibly would you have a worse effect from an electrocution?
347: We as humans have currently done a great bit of damage to the planet Earth. As an alternative way of disposing of garbage, would shooting large sums of trash into space be all that detrimental to the planet?
348: What does R.A.D.A.R. stands for?
349: What causes food to become stale?
350: What is gelatin?
351: Are your fingerprints on each hand the same or different?
352: Do you inherit your mom or dad's fingerprints?
353: Where do Wild Wolves wander?
354: How does spin affect the trajectory of a kicked soccerball?
355: What do you think that the most detrimental cause of global warming is, and what do you think the best way to start to reverse it is?
356: What geometrical shapes create structures that are both strong and light?
357: I am studying the statistical distribution of the size of crystals formed in a cement clinker. I expected a normal Gaussian curve but it was more like a Y=1/X curve. Why is it so?
358: I am trying to attract bees to different colors (honey will be on the paper). What type of bees are in my area (Buellton, California)?
359: Do you know of any software to calculate the area of morphology surface for cement in 2D?
360: Dear scientists,
My question has to do with animal testing. One of the common reasons I hear for testing on animals (specifically dogs) is because they offer a good indicator for the effects of the make up for humans. However, why would dogs make good indicators due to the fact that they are a different species and that they have fur all over their face? Thank you for your time.

361: How much oxygen should a fish really "take in"?
What should the water temperature be?

362: How do Pop Rocks work?
363: How much oxygen should a comet goldfish (comet feeder) "take in"?
364: Why does peanut butter remove gum from hair?
365: Why when you drop a mentos into a coke bottle it fizzes and creates a fountain?
366: What are some (elementary) mixtures I can do in the classrom with my students?
367: Why is it that you use hairspray in attempt to remove ink stains from clothing?
368: Why when you use those gray art erasers do they clean themselves when you "shape" them?
369: Is it possible to drink too much water, and if so, what will happen to the body, how will it react?
370: I saw an airplane spreading a red material over the areas of the Jesusita fire. Can you tell me what is that material? How does it work?
371: How does Nair work? What type of chemicals are used to remove the hair?(Nair is this type of cream lotion stuff you put on your legs and leave on for a few minutes then wash away with a wet towel...and ta da! No more hair! PS. It is pain free...unless you leave it on too long and you burn yourself. Thanks!
372: Dear UCSB ScienceLine,
Just the other day I was watching TV an ad came up from the make-up Company, Revlon, where they were promoting 12-hour long-lasting lipstick. Yet, when my mother uses make-up it only lasts a couple of hours before she has to reapply it again. What's in the Revlon lipstick that's able to make it last so long?

373: To Whom It May Concern:
Recently our AP Environmental Science class learned about innovative inventions such as plug- in hybrids and add-on devices to allow normal cars to run on standard cooking oil. Why doesn't the U.S. make efforts to convert cars completely to these technologies so that we will not have to rely on drilled oil?

374: Have there been any dinosaur fossils discovered in ice?
375: Does the center of a golf ball determine how long it will bounce?
376: Why does helium alter one's voice?
377: Is there a difference when using an ionic blow dryer compared to a normal one? Also is there a difference when using a ceramic flat iron verses a regular one?
378: Dear scientists,
I have another question: many sun screens rant and rave how they are sweat resistant and waterproof. What chemicals make this function possible?

379: I know that it is possible to harness some waste gasses, such as methane from landfills, as a source of energy. Is it possible to do the same with carbon emissions, thereby reducing emissions and producing energy?
380: In the future what will humans most likely going to look like after evolution?
381: How does hand sanitizer kill germs?
382: Is there anyway that we can ensure the safety of genetically modified crops, while increasing the amount of nutrients for example protein or vitamins?
383: What causes your voice to change when you inhale helium from a balloon?
384: How does a henna tattoo work, and why does water make the stain fade?
385: How and why does Static Guard work?
386: I've been reading a lot about different changes people can make in their everyday lifestyles to ease their impact on the environment, but how many of them are really beneficial and how helpful are they really? For example, how beneficial is it to unplug chargers? Should we bother removing bottle tops from soda and water bottles before recycling them? Which is better, paper or plastic? And should we use paper towels in public restrooms or electric hand dryers? Is it better to drive with the AC on or with the windows down?
387: Do Giant Japanese Crabs bite?
388: Why is the sky blue?
389: Why do people say that the world is going to die (be destroyed)? (Note from Claudia: I think that Jacqueline is speaking from the Earth Sciences point of view).
390: Why does the sky look blue?
391: What is the venom type in a Western Diamondback Rattlesnake and what chemicals in the venom cause the body to practically breakdown?
392: Why is it that peanut butter can get gum out of someone's hair?
393: How does a liquid bandage work?

What are the pH levels of windex, backing soda, soap, mouthwash, tums, rubbing alcohol, hydrogen peroxide and laundry detergent.

395: What is it in glowsticks that make them glow when you crack them?
396: Is it possible to develop any phsyical and/or mental addictions to the caffeine present in coffee? If so, what might they be?
397: How does chemistry and the structure and function of molecules apply to my life?
398: How does disappearing ink work? Meaning how does the ink start out colored and turn clear within a matter of a few seconds.
399: I saw a video on youtube about making solid water balls. This is the video: http://www.youtube.com/watch?v=_RCEdXTWQ4c Why and how does this happen?
400: It has been said that some polar bears spend part of the year on land in warmer climates. If this is the case, then why can't we move the polar bears that are drowning in the arctic climates, due to melting ice caps, and bring them to the land to adapt like some polar bears do year around?
401: How does lightning make glass
402: What are the pros and cons of using pesticides? Do the pros outweigh the cons? Are there safe and environmentally-friendly pesticides? Is it really better to only farm/purchase organic food?
403: If hydrogen in of itself is combustible, why can we not power our cars directly from water?
404: Reports are constantly being released referring to the constant destruction to our oceans that mankind is afflicting. Is this damage, for the most part, reversible? And if so, what is the single greatest thing we, as a people, can accomplish to ensure the integrity of our oceans? Must legislation be enacted? Or do we all simply have to do our part?
405: In terms of ice melting due to global warming, what would you say to someone who says that ice just melts and that we aren't causing it to. After all, the Great Lakes were formed by melting ice, and in a time without humans to pollute.
406: Can you suggest us a simple way of making a polymer in class?
407: Are all polymers the same? If not, what is the Physics/Chemistry of their structure that makes them different?
408: Do all polymers have the same decay time/process? If not, what makes them different?
409: Is there any polymer with a long (infinite in terms of human life-time)decay time?
410: What is the difference between recycling and reusing?
411: What is the chemical/physical process to recycle a polymer?
412: What would happen if you opened a jar in outer space and closed it, then brought it back to Earth. Would it explode, implode or nothing? Assume the jar is air tight and of basic 'off the shelf materials'-such as a mason jar.
413: Why cant I put trash in space and what would happen if I did?
414: Hi! I have another question relating to the phenomenon that can be demonstrated in straws or small tubes (being able to contain liquids in those tubes by using "vacuum" and capillary forces). Here it is: In this example, lets imagine that a person has a regular straw. But, that straw is stretched outward in the middle to create a larger tube-like "compartment". Basically, the diameter of the straw is small at the ends but is much larger in the middle. Now for the question: Would such a change in the straw's shape or ability to contain more fluid prevent it from holding in that increased amount of fluid thru the use of capillary forces and a "vacuum" provided by putting one's finger on the top end of the straw? In other, simpler words: Would the straw still be able to hold in, lets say, water, if the amount of water was to be increased substantially due to the introduction of the larger, middle diameter, or compartment, of the straw? Furthermore, how could one determine the maximum amount of water weight that it could hold using capillary forces and vacuum alone in a situation like this? How much could the diameter be increased in the middle, how big could the compartment get, while still allowing the weight of the fluid to be supported by the capillary forces and the pressure of the air outside of the straw? Thanks for your help!
415: Is there an existence of nothingness? Can what appears to be an empty container, actually be empty? Is there any possible way to have a unit of space that contains no air? No matter? Just nothing?
416: Did people exist during the dinosaur times?
417: Do male and female grow at different rates?
418: Which gender is better at math ?
419: When you pop a balloon that is filled with air, is that an example of an implosion or an explosion?
420: I need to know the procedure for determining the amount of lead in a given sample of lipstick. I know it is like a microscopic amount .
421: How does ethyl alcohol kill bacteria?
422: We need to test lead on slugs or some other form of invertebrates. How can we do that? What sort of behavior to look for? Lead is a neurotoxin, so we assumed the response to the lead would be some sort of behavioral problem like loss of appetite or less movement, but we are not sure. Thanks for your help!
423: How do antiseptic soaps work?
424: Whose decision is it that our country uses the standard system and not the metric system? I find it confusing that almost every other country uses the metric system except for the United States. Why don't we? If our country ever did switch to the metric system, who would be in charge of confirming that change?
425: How do stain removers work? (2)
426: How can I find out how much Chlorine and any bacteria has the water that we drink in our houses ?
427: How do you measure the different atoms in a human body since there are so many different types? Would you use the weight of the body to determine it?
428: Can you please tell me the digestive timeline for protein, fat, and starch?

Some people say smog in Los Angeles and Mexico City is caused because C02 can't reach over the mountains surrounding the city. If this is true, then how is C02 able to reach our atmosphere and cause a green effect if it can't even reach over proportionally small mountains?

Also, what would be a skeptics argument against global warming?

430: Why does the sun turn skin darker, but hair lighter?
431: How do glow sticks work?
432: What happens when you put a mento inside of a coke bottle? And why does it create a fountain?
433: How does self-tanner work?
434: How do Scientists calculate how many calories something contains?
435: Hi! My question is when you make red velvet cake, what chemicals react to make the cake turn red. Is it the vinagar and the cocoa power? Or is it something else? Thank you!
436: When I look out across the ocean from my house, some days there is so much brown pollution on the horizon, I can barely see Catalina Island. I know the pollution must be there all the time - let's face it, this is L.A., but is there something that happens in the atmosphere (maybe a weather pressure system) that makes pollution look worse on some days rather then others? Thanks for answering my question!
437: How does metal rust?
438: How does baking soda work? What properties in it make dough rise?
439: Liquid becomes a solid at freezing temperatures, but alcohol (vodca), very much a liquid, does not freeze. Why?
440: Spray on paint (from a can) will cast most surfaces. But on styrofoam, the surface melts from the spray paint. Why?
441: How does hair dye work?
442: Hi! On the subject of space suit insulation: I was wondering, would a space suit insulated completely by a layer of aerogel protect the wearer against the extreme hot and cold temperature in space or on the moon? Would it be superior to the current mode of insulation used at NASA now, with the many layers of material that are used to protect the wearer? Thanks for your help!
443: How does potassium prevent cramping in sport activities?
444: How are scientific names developed?
445: Where did stars come from and why do we have them?
446: How do scientists figure out what parts of the brain control what?
447: How far has space exploration gone and why don't we go farther?
448: After shaking a soda bottle/can, what makes the soda explode out when you open it? Also, after a soda becomes old or sits out for a long time, why does it lose its carbonation/bubbliness?
449: Using Coke, Pepsi, & Dr.Pepper...which can break down a potato the fastest?
450: When a cup is cold, and creates condensation, where does the drops of water on the outside of the cup come from?
451: When someone eats too many carrots or carrot juice, why does their skin turn orange? What makes the skin turn that color?
452: Why do Mentos mints foam when you drop them into soda pop?
453: What would happen if anti matter and hot plasma mix? Would be an explosion and how big would it be? What would be the damage? Please answer honestly; I am just doing a little personal research.
454: How is perfume made? What chemical components make up perfume?
455: Why is the freezing point in Vodka or other alcoholic beverages lower than other drinking liquids such as water?
456: How is Chemistry used in order to tell the different freezing points of liquids.
457: What chemicals are used to make vodka (the alcoholic beverage)?
458: What germs are good for the human body?
459: What elements are present in the body?
460: If mushrooms are a fungus, how are they edible?
461: Why does chlorine turn your hair green?
462: Why does pepto bismol turn your tongue black?
463: We are conducting an experiment where we need to know what washable lint rollers are made of (the sticky, rubbery part of the lint roller). Any clue as to what they use?
464: I am doing a science project on the amount of Bisphenol A in bottled water. How would I measure this quantity? If I need a special machine, how would I get access to this machine?
465: How does sulfur in facial cleansers help to eliminate acne?
466: Hi. In the answer to a question about ethyl alcohol and bacteria you-all wrote that ethyl alcohol can kill bacteria because it denatures the proteins in the cell and dissolves the cell membrane. I am trying to figure out how the ethyl alcohol in handgel affects viruses. I have read that all viruses have a protein coat that protects their genetic material and some have an envelope of fat that surrounds them. If the virus coat/shell is made up of proteins and /or fat if ethyl alcohol denatures the proteins in a bacterium cell, does it also denature the proteins and/or fat that make up the virus coat? If it does this, is this the reason we could say that hand gel is effective in killing viruses that may get on your hand?
467: What chemicals make throwing away technology (i.e. batteries) in the regular trash so harmful for the environment? What do these chemicals do to the environment?
468: Can tissues and paper towels be recycled?
469: Why does the day have 24 hours?
470: I'm doing a science fair on popcorn and I would like to know why is it that a kernel of popcorn pops when heated in the microwave.
471: What substances destroy your teeth?
472: Who has bigger hands boys or girls?
473: What is the effect of chlorinated water on plant growth?
474: Which gum lasts longer?
475: Which brand of popcorn pops the fastest?
476: How fast do fabrics burn?
477: What colors attract moths flash rate of fireflies?
478: Which fingerprint is more popular in the index finger?
479: How can I know the process to make crystals in a short time, like 2 months?
480: What kind of materials can you use to put out fires besides water and a fire extinguisher?
481: In what kind of material (sand, clay) do seeds grow best and why?
482: Ineed information on which brand of diapers can hold the most water?
483: Which grows faster scalp hair or body hair?
484: What materials put out a fire besides water?
485: What can I do for a science fair project that will get me an A+?
486: what cloth burns better?
487: What are some fabrics that burn fast?
488: Do grapes explode if you microwave them?
489: Does a plant grow bigger if watered by milk or water?
490: I don't know what to do for the science fair and I need your help. What should I do for the science fair?
491: I did an experiment with cats' and dogs' saliva to find our which of them has less bacteria. My experiment's results show that the dogs' saliva has less bacteria. According to your experience as a researcher, which saliva is cleaner?
492: How would you measure Ultra Violet light on green algae? What units of measurements would you use for measuring Ultra Violet light?
493: When you place a previously opened soda bottle in the the refrigerator, why is it really hard to open afterward?
494: How is coffee decaffeinated?
495: How does the ice in coolers stay cool?
496: How does Static Guard work?
497: Will eating junk foods like soda, chips, and candy increase your energy for a short amount of time?
498: What causes 2 books to hold together when their pages are peeled into each other?

I recently went to Disneyland,and I saw the awesome firewors display, and I was wondering what they use to get those different colors? And if you know, how do they get the fireworks to make different shapes? like smilie faces or the hearts?


500: We had a paddleboard race on Saturday from Goleta beach to Leadbetter beach and for the first two miles saw hundreds of large, brown jellyfish. So I wondered what species and how bad their sting is, they looked gnarly (scientific term)!? They were about 1 foot in diameter and looked like kelp bubbles when the wind caught the edge of their top. Long, 2ft+ tentacles. Fortunately no one was stung to my knowledge.
501: Can Bottled Water Go Bad?
502: Why doesn't alcohol freeze?
503: Why doesn't oil mix into other substances?
504: When clear water is placed into an ice tray. Why is it that once the ice is frozen it comes out opaque?
505: A work co11egue has asked me to ask , if an astronaut was lost in space would his body decompose?
506: What chemicals in the no calorie sugar replacement, Splenda, cause cancer?
507: How do instant hot/cold packs work? Like when you break and shake the heat/cold pack, how does it instantly heat up/cool down?
508: When there have been major oil spills, like the Exxon Valdez and the spill in the Gulf, chemicals are often dispersed on the surface of the ocean to absorb the oil. How does this chemical reaction work? How much of the oil is really absorbed?
509: Why does the sun lighten our hair but darken our skin?
510: What is the chemical reaction responsible for making clumping cat litter clump and how does it work?

Has increasing our knowledge of the structure of the atom been good for mankind or has it harmed mankind?

Thank You

512: How do trick candles work? When you blow them out, they light up again.
513: Why are former meth houses so dangerous?

When I drink a smoothie to fast, or jump in cold water, my head hurts really bad, and I am getting dizzy.
How does that happen, and why does that happen. Is it true that pressing your thumb against the roof of your mouth helps stopping that feeling?

Thank you a lot for your help!

515: What makes chili peppers hot/spicy?
516: Since the exact location of an electron can not be known since the electron is constantly in motion is it possible to tell the direction the electron is moving? Is that direction known theoretically or actually?

I'm a substitute teacher from Canada. I am presently teaching my class about different biomes. The great barrier reef was a common interest amongst the students. I must admit I know nothing about this subject. I have done some research concerning these topics below, and unfortunately I have encountered some difficulties. I was hoping you could help me provide the proper information for my class and I. I'd greatly appreciate it. I would need this information by Tuesday the 25th, 2010 at the latest. Thank you so much.

I need to know the following:
Major Flora- (just a few examples)
Major Fauna- (just a few examples)
Water- Resources
Water- Fresh Water Supply
Water- Percipitation
Food web- Consumers
Food web- Decomposers
Food web- Predation
Food web- Mutualism
Food web- Commensalism
Human- Encroachment
Human- Land Development
Human- Exploitation
I can't thank you enough.

518: Why do some candies (like wintergreen lifesavers) spark when chewed?

There is a spray called Staticide which reduces static in carpets, electronics, etc. How does that product work?

Thank You,

520: How do acne creams help to make the acne disappear?
521: Hi. There are markers that are made for small children that only shows up on a special peice of paper. If a kid draws on a wall no color is produced. Crayola calls them "Wonder Markers." How do they work? Thank You.
522: How is coffee decaffeinated?
523: How does eating carrots enhance your vision?
524: How do hair dyes work?
525: Why are babies born with blue eyes?
526: Does bottled water go bad?
527: Why is it that Honey will never spoil or "go bad"?

This is more of a maths question than a science question, but I'll ask here anyway, since I doubt it'll be covered at a High School level:

Why, precisely, is e(pi * i) + 1 = 0 ? (I'm aware that e(pi*x) = sin x + cos x, but I'm not sure why that is the case, either.)

529: How do the chemicals in Novocain work to numb a certain part of the body?
530: Hi there! I was just wondering: why are some acids harmful but others can be present in food? Also, why does acid burn your skin? Thank you so much and hope to hear from you soon!
531: How does tetracycline eliminate acne in the body?
532: I was watching Iron Chef America, and one of the contestants used liquid nitrogen to prepare part of their meal; how does liquid nitrogen work, and is it safe for consumption?
533: I was wondering how sun screen protects skin from getting sun burnt?
534: Do humans all like different tastes or do we all like the same taste but we taste each food differently?
535: Do we all see the same colors or do we see different colors but just grow up to call the color the same way?
536: Why do some people get alergic to certain things but other people not?
537: When you freeze a marshmallow why does it get so hard, and then when you expose it to room temperature it changes back to a regular marshmallow?
538: Two other friends and I are conducting a science fair project in which the question is: How does different footwear, or lack thereof, affect running ergonomics? There are many tests we can conduct with our own equipment, but a great addition to the project would be access to forceplates and any other instruments to measure weight distribution and or the stresses and forces incurred on the body while in the process of running. If no one working at the university has the means to test these things a nudge in the right direction would be much appreciated!

I'm asking for help with the assistance of my teacher. I'm doing a science fair and research project on the golden ratio in nature. I'm interested in mathematics and finding relationships between things I can measure in the real world.

I've been doing research on the golden ratio and I've found that the information is either too general or too advanced. I think there may be two ways you could help me:

1. I would like some help finding material that could help inform me appropriately (beyond the junior high level, but easier than graduate school) for my mathematical research.

2. Is it possible that there might be someone on campus willing to mentor me?

Teacher's note: This student is one of the brightest girls I've seen! Worth nurturing/Mentoring!!!!

540: I'd like to know, how to measure the volume or diameter of a droplet of water from a sprinkler. I'm fine if you give it as a formula or description.
541: If a plant didn't have chlorophyll, what color would it be?
542: Is it true that if you laugh a lot, you will live longer? if so why?
543: How do you get head aches? Why?
544: Why is blood red?
545: What does Vitamin D have to do with calcium?
546: Hi, I was wondering if you have any unique information for the use of calcium, the element.
547: What are some interesting facts that I could learn from you that I could not find on the internet about the element, Antimony? Also, is it possible to find it as a solid even though it melts at over 1000 degrees f?
548: What is xenon used in? What is xenon mostly used in? How long did it take for Sir William Ramsay and Morris M. Travers to find the element xenon?
549: How does the creation of element 118, Ununoctium, give us insight to the creation of the universe.

Dear UCSB Scientist,
My class and I are learning about seasons and about weather. Today is sunny. We heard that tomorrow there is supposed to be rain. How can weather change so fast?
Thank you so much!

551: If a plant is dead and you put it into a cup with water and food coloring will it still change color?

I am a mexican oceaographer that works in the Mexican caribbean coast. I would like to obtain a copy of the article:

Groundwater reorganization in the Floridan aquifer following Holocene sea-level rise-Nature Geoscience 3, 683 - 687 (2010).

Yours faithful,


I was wondering if anyone at UCSB could tell me what soil composition is like after a fire (I couldn't find a usable resource)?

554: What is the composition of fabric, specifically cotton, wool, fleece, and polyester?
555: What is the melting point of a candle?
556: How does water affect fabric?
557: What are the contents of wicks?
558: What are the differnet types of wax?
559: What are the contents of wax and paraffin?
560: Do fabrics contain absorbent properties? If so what?
561: What happens to the space inside the balloon when you release the air inside it?
562: How do leaves change color during the fall?
563: We have been having classes about drug abuse and how to avoid it (D.A.R.E. program from the School District). Is the problem with alcoholism related to our parents' genes or is it something we humans get by drinking too much alcohol?
564: Do you have any unique information for the use of Calcium, the element?
565: What nutrients are taken out of soil when people use too much fertilizer?
566: Hi, I went to visit the Hoover Dam and I realized that the energy cables were very noisy, like a bee sound. Is this sound caused by a magnetic field? Can you explain to me the reason of that noise?
567: I want to know why we always look at the same face of the moon. Can you explain to me the reason?
568: What is color blindness, how can you tell when you get it and are there any treatments to get rid of it?
569: Are there any colors that human beings can not see?
570: Is silk made of living thing?
571: How many chromosomes do butterflies have? My teacher and I have a debate on if they have 380 chromosomes or 20-40.
572: How different are the atmospheres of Venus, Earth, and Mars? Can you tell me the characteristics that make them different? Has any of these three planets a very different atmosphere from the other two?
573: Where is the wettest land mass on Earth?
574: When you put dry ice in an aquarium partly filled with water, you see a layer of white mist develop. Is the white mist the CO2 itself or is it water condensation resulting from the lowered temperature?
575: Are nuclear power plants safe?
576: In the advanced chemistry textbook we are using, Chemistry, 7th edition, Zumdahl and Zumdahl, the electric dipole moment is defined to point from the positive charge center toward the negative charge center. (page 335) Can you tell me why this would be the definition, since they also state that the dipole moment will align with the electric field. (page 336) It is well-known that the electric field vector between a pair of metal plates points from the positive plate toward the negative plate. And in physics classes, I always learned that the electric dipole points from negative toward the positive.
577: Do fractals appear in home grown crystals?
578: Could I feed a translucent fish food coloring and will it change color?
579: Is there a thread that can support human weight (like spidermans' webshooter)?
580: What is it that salt enriches flavors?
581: How do you Earth Scientists see fractals along the coasts?
582: Why is it that a lightbulb requires a filament, or a different process, (depending on the type of lightbulb) while a radio transmitter uses an antennae? They are both photons, no?
583: Why is it that quartz vibrates when it is exposed to electricity?
584: What was the reason why Chernobyl power plant had that big accident in the past?
585: When does a baby start having memories that affect her/his behavior when she/he becomes a grown up?
586: What are some examples of solid surfactants that are insoluble in water?
587: Would it be possible to contain a surfactant in a thin membrane or capsule of some sort so that it does not mix with water, while still allowing it to interact with water (to lower the surface tension of water)? If so, how would that be done?
Thank you so much for your help!

588: What are some examples of liquid surfactants that are immiscible in water?
589: What are fossils made of?
590: Is Spinosaurus the biggest dinosaur? How many teeth does it have?
591: Why doesn't the earth sink?
592: What is the reaction of a plant when you add Clorox?
593: When I take the air out of a container with a plastic bag in it the bag inflates. I need to know why and how to explain it for my project.
594: How does the sea make the rain?
595: How does a mummy body stay the same?
596: Why are the volcanoes important to the plants on earth?
597: how go people clean water from the poop plant in Santa Barbara
598: What is the molecular shape of Ibuprofen? And, may you please give me any opinions of yours on this molecule. It's for my science project.
599: What is something about the bond angle of the molecule, Glucose?
600: We have chickens. For our science fair I want to die the color of their food and water to see if it effects the color of their eggs. Can this hurt them?
601: Do you think scientists will ever create a wormhole? And if they are able to create a wormhole how will they control it so as to take us places that humans can live comfortably?
602: How dose the sea make the rain? Is it the wind or the waves?
603: For my science project I am doing buckminsterfullerene aka buckyball aka C60. For that project we have to include a quote from an expert of the subject matter. So I was wondering if you have any information on that molecule and maybe some of its uses. Thank You Anna Manfreda Grade 8
604: I've been looking all over the internet to find out why some tsunamis result in drawdown before the surge. I understand the drawdown is the trough of the wave, but how can a trough lead the crest of a wave generated by uplift, like the Sumatra and Japanese quakes? Does drawdown result from the 'backside' of the wave? I'm imagining something like this for the Japanese tsunami--the seafloor uplifted westward, lifting the surface water in the direction of Japan, and the 'fill-in' water created a trough that then was pushed eastward by the uplifted water returning to 'sea level'? Please help me figure this out--my students ask me and I don't know what to tell them... Thanks! RJ
605: How do balls bounce? Does it have to do with gravity?
606: Can humans bring dinosaurs back to life like Frankenstein?
607: How old does a triceratops have to be to mate and lay eggs?
608: How much Oxygen does the air have in it at 20 feet above sea level?
609: How does a nuclear meltdown occur, and how can it be averted?
610: How many teeth is a shark supposed to have?
611: How is that you get seasick when you are on a boat?
612: Is the radioactive material being released into the environment in Japan worse than what is released from coal fired power plants continuously?
613: Is there an experiment that can prove why ocean water looks blue, some green and some light brown in color?
614: How long does it take for mountains to grow(in years/decades)?
615: Dear Scientists, We have learned about weather and the water cycle. If rain is clear and snow is white, why are rain/snow clouds dark and gray. They almost look black. Thank you, The Students in Room 5
616: Why is the Dead Sea so salty?

I'm still curious about the result of my project.

read- about

For your information, I've used XRD to determine the element of the 'rock'. If you remember, I'd sent you a micrograph pictures (using SEM) of the 'rock' last week.

I've attached some result of XRD. Hope you can give your opinion either it is fossil or not. I really appreciate your cooperation. Million thanks..:)

618: How does the Coriolis Effect affect the weather on Earth? Does the Coriolis Effect work in the same way above and below the equator?
619: How do iguanas reproduce? Do they lay eggs or give live births?
620: Would modern technology advance in the next 10 years?
621: Where does a balloon go when it flies up into the air ? Does it pop or keep on going? Does it run out of helium and just float down or does it go into the atmosphere?
622: Does smoke make the atmosphere thicker?
623: Is coral bleached by higher temperatures?
624: Do cow farts contribute to global warming?
625: Today in Physics class we learned that a wire with an electric current flowing through it creates a magnetic field. I was wondering why electrical power lines do not repel or attract each other even though they have large amounts of electrical current flowing through them.
626: Which are the places (countries/oceans) where whales live?
627: What common ancestor do humans and other mammals share?
628: What is the synthesis reaction for aspirin?
629: If a human had been uploaded with a computer program, how could one test his brain to prove it, and determine who the originator of that program was?
630: How can I clean liquor bottles or liquor tanks that have been used in the manufacturing of country liquor?
631: Why can people see more clearly when they squint their eyes?
632: How fast do rain drops fall?
633: Based on evolution,why did insects start of so large and become very small today?
634: In my AP Chemistry class, we first learned that the standard temperature for gases is 273 K, but later, when we studied free energy and electrochemistry, we learned that standard temperature is 298 K. Why does standard temperature differ between these concepts?
635: How do we get marshmallows to expand?
636: Why electric lines do not attract each other?
637: How can we test the effectiveness of rubbing alcohol in killing bacteria?
638: How many micrograms of VOCs, especially formaldehyde, xylene, and benzene can a typical air purifier filter?
639: How does a car cell phone charger work (physics)?
640: Can absolute zero stop time?
641: Is there another way to stop time than traveling at light speed? I learned that mass can't go at light speed unless we have infinite energy (which we don't). If there are other ways of stopping time, won't it be so much easier?
642: Will a zombie apocalypse ever happen?
643: Hello, I saw an article online about these things called "Geons" and was wondering if there has been any real research done regarding them. I have a few questions: Have Geons (geon is an electromagnetic or gravitational wave which is held together in a confined region by the gravitational attraction of its own field energy) ever been observed, or are they purely theoretical? Would it be possible to produce a Geon? Because a Geon is in a confined region, would it have any gravitational effects beyond its region? Is it possible to calculate the nessesary field strength to produce a Geon? Thank you for your help! Best, Fineas
644: We are a drama club and want to do a skit about being silent, when you see something done wrong. We want the actors to have blood on their hands (representing "if you're silent, the blood of that person who is being mistreated is on your hands). So the fake blood is made of corn syrup and food color. We want before our audience, to put the blooded hands into a clear glass bowl that is filled with water. When the actor brings his hand out of the water, we want his hands to be clean with no blood and the water to still be clear with no red residue. We would need to put something in the water that would not damager the actor's skin or hands, but would give us the result of a clean hand and clear water. DO YOU KNOW WHAT WE COULD PUT IN THE WATER SO THAT THE WATER WOULD STAY CLEAR AND THE HAND WOULD BE CLEAN?? Thank you so MUCH for your prompt responds to this question. We have to perform it on August 20th.
645: Why do cows have splotches?
646: How do animals react to weightlessness?
647: Is there a sixth human body sense and how does it work?
648: How many teeth do sharks have?
649: How many particles run through the human body?
650: How do scientists make crystals?
651: How many teeth does a Great White Shark have?
652: Why any number to the zero power always gives a one?
653: How many times does your heart beat?
654: How are eathworms created?
655: What percentage of Earth are rocks, compared to soil and water?
656: If I put food coloring in my veins, will it kill me? I want to know if my veins will change color for a science fair project.
657: How many teeth do whales have?
658: How do spiders construct webs that are in the middle of two distant objects?
659: Can a certain kind of food coloring affect a certain type of plants growth?
660: Hello! How are you guys? Im continuing my second year here at PSU and am exited to begin another physics class. Ive been looking over some basic magnetics stuff and came upon a "Fun with Magnets" video while searching the net. The video can be found at the following link: http://www.youtube.com/watch?v=AaXglgoF2eg It was one of several videos that I found while I was searching for some basic magnetism kits, but I found this one the most interesting. Id like to try and make one for a demonstration, and it looks simple enought to build (the creator says it uses permanent magnets), but im still trying to figure out exactly how the magnets are configured to make the cylinder magnet follow the shape of the arc. I was wondering if you guys had any ideas? Thanks a lot and have a great day!
661: We are a group of people interested in building a childrens playground in the Huasteca Mountains of Mexico. We need a ceiling material which can let the light pass through, but also be resistant and environmentally friendly. According to our research we think that ETFT plastic can be a good choice for our project, but we would like your advice as experts in Materials Science. Any help will be appreciated.
662: I read the news this morning that scientists found some particles (neutrinos) which can travel faster than the speed of light. Is it real and possible?
663: After treepods catch CO2 from the environment, what do you do with this CO2?
664: How was Continental Drift and Inter Continental distance measured before satellite technology available and how accurate was it
665: Bacteria was discovered. It was whitish, yellowish with a green tint. It had circles in it. it was a slimy texture that was of thin substance. It had a bubble surface and it was translucent. What type of bacteria was it?
666: Would an emptied soda can implode or explode in space?
667: For animal science our teacher wants us to die a fish a different color. How would I go about doing this? Or can I just get a white fish and out like 2 drops of food color on each side of him ? Because I have a 3.0 GPA looking at going into collage next year, this is 50% of 1st semesters grade. Thanks!
668: What diseases do bananas and fish carry? (Mercury, Tiny diseases on banana, etc.) How do safely carry food from one place to another without diseases getting on the food? This is for a very important group project. Thank you!
669: Are viruses alive? What about prions?
670: A classic experiment involves growing beans in wet cotton. Can the same be done in hydrated sodium polyacrylate?
671: Hello,
I am interested in studying how fingerprints develop and form in different people. Is there anyone at UCSB who could help me find out more about how fingerprints exactly form? I would also be interested in possibly working with someone who researches embryological development because I think that it relates to the development of fingerprints. Thank you very much,

672: Why do two air molecules, separating at the same time, and one going along the "straight" bottom of an airplane wing and one going along the curved top of the wing have to arrive at the back of the wing at the same time? Or do they? Isn't that what creates lift?
673: Would light ever stop traveling if there were no objects to absorb the light.
674: If an Producer is an organism that makes its own food. And a Herbivore is a plant eating animal what is something like a venus fly-trap be?
675: Dear UCSB Scientists,
I am interested in doing a science fair project on fluorescence. I would enjoy having a chemist to help me create a fluorescent chemical for my experiment. Would anyone be able to guide or advise me please?
Thank you very much,

676: How do different forms of teaching, including text, visuals, and audio learning, affect students' comprehension tests? Which age and STAR test score level was affected the most?
677: How does the amount of pressure put on students to perform well affect their test scores?
678: How to test or create better questions for testing? I would like to perform a good high school level project. Any suggestions on would be greatly appreciated.
679: In which different ways can you test fingerprints? I would be very greatful for your answers!

Thank you very much

680: How do different surfaces affect the preservation of finger prints?

In science, I am starting a Science Fair project and I have a few questions that need to be answered for guidance and advice. My project is: How do the size, color and amount of time to see an image affect a person's image memory?

1) What do you suggest I should do to test the affects of different sizes, colors and amount of time to look at an image on a person's image memory?

2) How would I measure these effects?

3) What do you suggest I should do to record my data?

4) Does level of intelligence and age affect a person's image memory? How?

5) Based on your experiences, how do you think image memory affects a person or a community?

Thank you for taking the time to answer my questions.

682: Do finger prints stay heat sensitive longer depending on the surface the print is applied to?
683: Why do we have fingerprints or 'prints' on only our palms and feet? Is there a difference between the types of the skin?
684: What kind of baits are most effective to atract sharks? What are good spots to find sharks within a 15 mile range of the santa barbara harbor?
685: Does temperature affect the amount of energy a solar panel receives?
686: How far will a homemade fire extinguisher shoot if we change the bottle size or the amount of baking soda?
687: How can I get information or background research for handwriting analysis?
688: How does a boat float if it's heavy?
689: Do Football helmets contribute to head injuries and concussions in the NFL (National Football League)? I wanted to know if you had an instrument that measures force when is hit. Can you tell me what kind of instruments can I use to measure those forces?
690: Are there more hurricanes in the northern hemisphere of the Earth, than in the South? If this is true, can you tell me why?
691: Do the planets grow in size?
692: Does color really affect the plants growth?
693: Hi -
We are studying protozoa and have some questions about the shape of ameobas. In the slides & videos we've seen, the pseudopods look like arms that reach around and engulf a bacteria into a food vacuole. However, you can still see the bacteria... does that mean that there is no pseudopod "on top" of the bacteria? Or are pseudopods 3-dimentional? We don't know, since we've only seen them on slides, flattened under cover slips - what shape are ameobas when they float freely in the water?

694: Does your eye color affect your eyesight? If so, I have hazel eyes, would I see better or worse than others? I'm just curious.
695: Can a person live without gall bladder?
696: Who is the oldest person in the world?
697: What animals have the most bones in its body?
698: How many circuits can you fit in the computer called MINAC (Miniature Navigation Airborne Computer)?
699: In Psychology, it is a well known fact that one can change oneself through positive self- affirmation & visualization .It is believed that the self-affirmations to the subconscious mind are best done in an already achieved mode. For example, a student who is weak in mathematics and wish to improve on it should say the self- affirmations as I am excellent at mathematics & also visualize himself as ALREADY being good at Math repeatedly. Or a person who is a coward could reprogram his mind by saying to himself, I am brave, etc. This is so that the subconscious mind is set with the positive intended goal and thus will program the whole body with the message. But the question is that such self-affirmation is not the truth (or not the truth yet). When he is telling himself that he is ALREADY being good at Math, he is actually lying to himself. So, would it better to say,I am getting better and better at Math rather than I am excellent at Math?
700: What will happen to an egg if it is sent to space?
701: How can a heavy boat float on top of water?
702: Can you please tell me the digestive timeline for protein, fat, and starch?
703: We have been learning about the immune response (natural killer cells, dendritic cells, t-cells, etc.) and I have a question: how many times a day / week / month does your immune system fight off viruses? Is it happening all the time?
704: I can see different layers of soil emerging from the Ocean at the beach when there is low tide. How were these layers formed?
705: Hello, I am doing a science project for the science fair and I need to ask a proffessional a couple of questions for my project. Would you mind answering these questions for me? Why do different types of wrapping affect the spoilage of raspberries?
706: How does the volume of "Pumped Up'd Kicks" by Foster the People, affect the heart rate of a person?
707: What are the effects of grey water vs. fresh water? I am conducting an experiment and so far it looks like the grey water is doing better than the fresh watered plants.
708: If you listen to a Country song, a Hip-Pop song, a Rock song, a Rap song, and a Jazz song, what type of song would make your heart rate the lowest(and highest)?

What is music therapy?

What type/tempo affects moods in what way?

710: How long does it take for the temporal lobe to convert short-term memories into long-term memories?

711: What are some elements in hair shampoo that would change the way it cleans the hair? Would any particular ingredients such as glycol distearate be less or more helpful?
712: What influences memories? Does rapid movement not store as well as something that is still does?
713: Is there a specific color that the brain reacts to?
714: How does age affect sensory, short, and long term memory?
715: Why don't we remeber anything from our early lives?
716: Why do some events stand out in our memory more than others?
717: Could gender affect someone's memory?
718: What section of the brain controls sensory, short, and long term memory?
719: What exactly causes a memory from sensory to short term to long term memory?
720: Do you believe that acronyms are a resourceful tool to remember things?
721: There is an ingredient called detergent in shampoo, but that is a very broad concept. Could you explain it in a molecular form?
722: Would the age or manufacturer of the shampoo change the quality or cleaning ability of the shampoo?
723: I am testing three different variables to determine the quality and working ability of two different shampoo brands. One thing I am testing is the viscosity by shaking diluted shampoo and measuring the height of the foam compared to the undisturbed shampoo. What does viscosity mean exactly and how would my observers understand it better?
724: Is vacuum packaging more efficient than wrapping something with a plastic bag?
Thank you.

725: Can food be contaminated by metal wrapping?
726: What is the difference between plastic wrapping, and glass wrapping?
727: What foods that are refrigerated, do spoil the quickest ?
728: Why do certian foods, such as raspberries, need to be refrigerated?
729: Is there a correlation between fingerprints amongst family members?
730: If I test fingerprints of families, do I have to have the same amount of members in each family?
731: When I have to write results/complications of the fingerprints tests should I mention the number of members that I tested in every family?
732: Out of raw white sugar, granulated sugar, and raw light brown sugar, which has the best nutritional value?
733: What part of the brain is affected by music the most? Thank you! :)
734: What is that section of the brain's reaction to music?
735: Are there specific reasons why some colors affect people emotionally?
736: Does the brain react differently to certain tempos?
737: Some memories we remember more than others. Why?
738: Does age affect the brain's reaction to music?
739: Does eating healthy affect daily brain activity?
740: Does the brain respond to familiar music differently than unfamiliar music?
741: Do any other lobes, beside temporal lobes, affect the storing of memories?
742: Are there any nutritional values in gluten?
743: Why do gluten free cookies collapse when being baked?
744: Hi, I'm doing a science fair project involving gluten free flour substitutions. I was wondering why glutenous flour binds cookies better than gluten free flours such as rice, oat and almond flour?
745: Hi! I need to ask you a few questions for my science project, so here they are: Do events in our life affect brain activity and memory? Gracias! (:
746: Have you ever had experience with using grey water on plants?
747: Are there scientific reasons why one or the other water type would do better on the plants?
748: Do farms or plantations ever use grey water?
749: What is the most popular shape of candle?
750: Can the type of container holding a candle affect the length of time the candle burns for?
751: Can a candle burn completely to the bottom of the container it is in?
752: Are there multiple types of candle wicks?
753: What are the three most common types of candles?
754: What happens if I freeze citrus fruit juice? Will it stay the same, or lose even more vitamin C?
755: If I dont have the right amount of vitamin C in me, then what will start to happen to my body?
756: If you boil any other type of vitamin besides vitamin C, will it lose the same amount of its nutrition content?
757: If the citrus fruit juice is being boiled in a base of syrup, can I raise the temperature with less vitamin C loss?
758: Hello, I am currently doing my science fair project and I need your help. Just to give you a little understanding of my project, here is my hypothesis: If I boil citrus fruit juice then, it will have less vitamin C compared to citrus fruit juice that has not been cooked. I would highly appreciate if you could help me out. Here is a list of questions that I have:
What is the temperature at which vitamin C begins to be lost? 78F -90F? 110F?

759: How can penguins jump out of the water so fast and so high? Do they use a swim bladder like sharks?
760: Does it matter if there are words in the music you are listening to? Can those words get your brain flowing with new word ideas and help with thought processing or anything of the like?
761: Can your brain waves sync with the beat of the music you are listening to?
762: Is there any research existing showing relationship between brain activity and concentration?
763: Can the rhythm or bass of music affect how you concentrate? Like if the bass were loud and repetitive it could become annoying and take your attention towards it.
764: I have 5 questions.
1) Do colors affect emotion?
2) Which colors have the greatist effect on someones emotions?
3)Would a combination of colors have a greater effect on someone?
4)Does color have to be a certain shade for it to have an effect on emotion?
5)Do all colors have an effect on emotion?


I am doing a science project for school and my question is, "How does music affect concentration?" I have five questions for you:

What part of the brain is responsible for concentration?

766: How does age affect how quick one sees an illusion and how does personal relevance affect how quick one sees an illusion?
767: Does music affect everyones' heart rate?
768: Does listening music through a stereo system or through headphones differ when you are testing heart rate after listening to music?
769: After listening to music and then testing the change in heart rate, does age differ?
770: After listening to music and then testing the change in heart rate, does gender differ?
771: What part of the brain controls concentration?
772: What type of music affects concentration the most?
773: Does listening to music while taking a test affect students test scores?
774: Does music affect concentration?
775: Why do they glow sticks glow brighter when heated and longer when cooled?
776: What happens to the matter inside a glow stick when it's heated or cooled?
777: If my hypothesis is; if volunters listen to "pumped up kicks" by Foster the People at 25 50 75 and 100db, then there heart rate will change most after 100db, then do you think age would matter? With the above information do you think that what they where doing before the test would matter? Do you think that during the test the volunteer should be without distraction? My last question would be, do you think that I should test the volunteers heart rate or tust they will give me the right answer?
778: How does gravity affect surface tension?
779: What can happen to a plant if the soil is over saturated with synthetic fertilizers?
780: How do different kinds of music affect concentration?
781: Why does different soils effect footprints/tracks? Why does mud shows good footprints/tracks compared to other soils? How does water change the footprint/track? How did you become a scientist in this criteria? How long did it take you to become a scientist?
782: How do plants trap or convert pollutants?
783: Are the size and amount of roots the main factors of a plants ability to trap pollutants?
784: How many bioswales are in our community?
785: Is there a particular substance inside both oil and salt, that keeps the oil from freezing?
786: Why won't any type of oil, would be able to freeze, as it usually does when it is not touched, when it is combined with salt? Not to be rude, but I do need an answer quick, to finish my science fair project in time...Please reply as soon as possible!!!! PLEASE!!!!!
787: How do you think the barrel length affects the accuracy and range of a projectile? Why do you think this happens? What is your field and how long have you been working in it? If you were to build a air cannon would you build a long medium or short barrel? What do you think would be the beast projectile for a air cannon?
788: What method is the best for preserving fingerprints?
789: What is the most common method of lifting fingerprints?
790: Can fingerprints last for months if conditions are right?
791: What is the best method of lifting fingerprints?
792: If heat is simply the movement of molecules, then how to infrared cameras, which capture infrared light, manage to see heat? Or phrased differently: How does heat give off infrared?
793: How does a pendulum in a mechanical clock works? Not having electricity, from where does it take its energy?
794: Which type of waves do we have when there is an earthquake?
795: How do basalt and ultramafic rocks from the oceanic lithosphere become part of mountain belts?
796: How are scientists able to know the role of neurotransmitters in the human brain when they can not see the synaptic connection among neurons?
797: If we were able to unfold the brain, how big would it be? Would it be long like an intestine or flat and round like a tortilla?
798: What is the effect over a persons vocal range if the singer warms up before singing, and which other factors affect the persons vocal range?
799: Why is the pressure inside a soup bubble greater than the pressure outside?
800: If a fragment from an asteroid falls to Earth and a static electric charge is built up as the fragment falls, does it generate a magnetic field? If so, why does it happen?
801: What are distance, time, spring balance and machine?
802: What is a wedge?
803: Is mimicry in animals innate behavior, learning behavior or both?
804: Can you tell me why Hurricane Katrina took effect? Why was Katrina so destructive? Has Katrina been the most destructive and strong hurricane we have had in the world?
805: How do volcanoes form? What happens after volcanoes erupt? Can you please give me some interesting information about volcanoes?
806: What is the most important fact about volcanoes?
807: When an earthquake happens, when does it stop?
808: Can we get as much info as possible on the Japan tsunami 2011? We are doing a project on it, some info would be nice. Thank you for your cooperation, we appreciate it.
809: How do earthquakes start?
810: Do you have information on tsunamis? If you do have something, can you please tell me about?
811: What is the weakest spot in the world for a Tsunami to occur, besides the Ring of Fire?
812: I was just wondering how many chromosomes it takes to make one strand of DNA? Thanks, hopefully you reply soon.
813: Are there any plans to try to move the moon back to a closer orbit with the earth, through some kind of gravity manipulation, or other ideas?
814: How much air is in a marshmallow?

How bad is the green house effect and how will it affect us in the long run?

How much does the green house effect have to do with global warming?

816: Which is the biggest rodent in the world?
817: Why aren't monkeys turning into humans right now?
818: What was the biggest earthquake that has hit California?
819: Is there a scientific name for when a person has two different color eyes? meaning each eye is a different color. Also, is it an inherited trait? Is this trait on a specific chromosome? Thank You
820: What is the most common disease in teenagers, that is fatal?
821: Why can cats land on their feet when they jump off a tree?
822: How do you explain the concept of time?
823: How to forces such as gravity and magnetism work? What makes objects attracted to other objects?
824: When will the ozone layer disappear?
825: What percentage of atmosphere pollution is actually caused by cars instead of natural gases?
826: Why do we have to know about what happened to the Earth millions of years ago?
827: How many asteroids,comets,meteors,meteorites,meteorids have hitting the earth?
828: If water is made up of hydrogen and oxygen, two gasses, then how is it a liquid?
829: Bull Sharks are able to live in both fresh water and salt water, while most other sharks can only survive in salt water. How is this so? Are their gills different so they can adapt to different water types.
830: What other materials can be used in a bulb other than Tungsten?
831: Do you believe radiometric dating is an accurate way to date the earth? Why or why not? Could you also please explain further what radiometric dating is and the process to use it? Mahalo.
832: A video said that before the Big Bang, the universe was the size of an atom. Another video said that before the Big Bang, there was no space. If so, where is this atom-sized universe? It is got to be so where?
833: What is Time?
834: What makes some twins of the same sex identical and others not?
835: We want to know which is faster: electricity or light?
836: Can you explain why the planets are round?
837: I am kind of interested in science, but also interested in people. What made you decide to be a scientist?
838: Im wondering how come people have different brains, minds, and intelligence?
839: We were studying about different kind of lenses. How can contact lenses help people see better, when they are on top of your eyes?
840: What is light and why does it travel so fast?
841: Why can many plants and animals adapt better than others?
842: I always hear about pH on things like bottles of acne face wash, which claim to "restore your pH balance", or deodorant that is "pH balanced just for you". What does this mean?
843: I was wondering about the Mammoth Lakes.... there's some volcanoes there......what is going to happen in the future????
844: How do we know that the earth revolves around the sun? Is the sun in a fixed position? The sun is seen crossing the sky, but so is the moon. Isn't the center of anything relative to your position?
845: This one is related to direction. I've heard that some mapmakers in the southern hemisphere design maps with the "southern" hemisphere on top and the northern" hemisphere on the bottom.
846: Do the people in the Southern Hemisphere consider north our north pole, or is their north actually the south pole?
847: I would like to know why water's blue in the ocean and clear in a cup? My teacher lives in by the beach and the color are green, red, gray, black at night. My friend Valerie said that it looks blue because of the sun reflection. What is the waters real color?
848: We want to know is blood blue or red? It looks blue in the inside and on the outside it is red.
849: In your body is your blood blue or red?
850: Does the carbon dioxide change the pH of our blood? (I was doing an experiment and we were using straw and we had to blow inside the water and the pH changed.)
851: Why does water only smells when it is mixed with something?
852: Why is it that when you pour koolaid into water, it sinks, but if you stir it up it mixes and never sinks again?
853: Why do we say north is up and south is down? How do we know what up is?
854: What inspired you to become a scientist?
855: I have heard of parallel universes, but I do not understand them. Can you explain these, and can you tell me if there is such a thing?
856: How do you know what planets and stars are made of if you can't actually take samples?
857: How can you tell how many miles or light years away something is if you can't go there? What sorts of instruments do you use?
858: Is it possible if we brought all the supplies to live on the Moon?
859: Why are waves bigger over rocks than just over the sand?
860: What are some of the most interesting life forms found in the deepest parts of the ocean?
861: What concrete evidence do scientists actually have that we evolved from monkeys and that the "big bang" actually happened?
862: Do you believe in aliens?
863: Why did you choose to teach at UCSB?
864: Why is it virtually impossible to travel through time?
865: What are some possible careers in your field of science and what can we do to get started now?
866: How many man-made objects orbit the Earth? What are they?
867: Why did volcanoes on other planets stop erupting?
868: Why does Lyndsay have one blue and one brown eye?
869: Why are the trunks of trees brown?
870: What are the black dots you see when you close your eyes?
871: Why is the sky blue when you look up, but a bluish-white on the horizon?
872: How do scientists construct anti-gravity rooms?
873: If we melted Mars' ice cap, do you think the water would be useable? Could we create an atmosphere?
874: Are you ever bored with what you are doing?
875: If you sent a marshmallow into space without a spacesuit, would it explode or implode?
876: What is heavier: oxygen or carbon dioxide?
877: How did the salt get into the oceans at the beginning of their formation?
878: Why do male quail have a little thing on top of their head? and why do male deer have horns? I think that the quail has a little thing on thier head because that is how you can tell them apart; on the deer, I think that they have horns because that is what they use to fight. Are there other reasons?
879: We are wondering about some weather data. It seems like there is an indirect relationship between air pressure and relative humidity. We thought wet air would have greater air pressure (weigh more) than dry air! What's up with that?
880: Why can't we see stars in the day time like we do at night?
881: I heard that moss always grows on the north side of trees. I want to know if it is true and why?I think it grows there because it is shady and cool.
882: I was wondering if light have mass or weight? If so, how is it measured?
883: I know we have a vocal box, but I do not know how the vocal box works. Could you help? We do not have any reference book that I could use to look up this topic.
884: If a flower's reproductive part ( pollen) goes in to a different flower could that make a new species of flowers or could we try to crossbreed?
885: We've been studying the planets in my science class. I read this article in the Time magazine (March 1998), that there might be water on one of Jupiter's moons, Europa. I think that the title of the article is misleading "Aliens in a Slushy Sea". They say ice that they found may mean some liquid under the ice layer. My reading of the article tells me that they are trying to make us think that there may be water on this moon. I find that hard to believe! Couldn't the ice that they found be frozen Carbon dioxide and not water? Do you have any more info. on the subject?
886: RUST: The other day I was told by a man who does body and fender work on cars that "car cancer" (rust) has to be completely removed and in the really bad places cut out and a new piece of metal welded in or the rust would just continue to destroy a car. I thought that rust was the result of iron and oxygen reacting creating iron oxide! If I cover up the rust with paint or "bondo" (sp?), and air can't get to it (no oxygen so no reaction), why would it continue to get worse?
887: We are trying to integrate the state and national science standards into the 3rd-6th grade curriculum. I am preparing to do a presentation on using the digital camera to teach science. I was wondering if you had any ideas on how you use the digital camera as a scientist.
888: I have heard that they have taken different pictures of the atmosphere from outside the world. Can you please direct me where I can find pictures that would show me different information about the atmosphere. I would like to study the atmosphere and take pictures from outside the earth.
889: Im wondering why are dinosaurs extinct? Did their food get poisoned or did they run out of food? What happened?
890: I wonder if you know of any web sites or information on the ozone layer.
891: Is there really life on Mars? What evidence is there that there may or may not have been life on Mars?
892: How do snakes inject venom into its victim? How do snakes slither? How do snakes close their mouth without biting themselves?
893: I am really interested in UFOs because it is strange. I searched on the internet and found some pictures that are suppose to be real. I will like you to direct me to more information.I hope you are interested , too? I also hope you believe in them, because I do.
894: My friends and I are building a model of the R.M.S. Titanic. We were wondering if you had any ideas on building a model of ships or if you know of any web sites. If you knew anything about model making do you know what wed need to build a model of a ship? Would it be a good idea to make it out of modeling clay?
895: How and why do volcanoes erupt? We also wanted to know how tall is the biggest volcano? Why is every volcano shaped like a triangle? Why is the magma hot?
896: I want to know which planet has the most moons. How many do Saturn and Jupiter have.
897: I need to know if lightening strikes water (ex. oceans, lakes, etc.)? If it does, does the electrical current fry the fish?
898: I was wondering how ultrasound works. Ive seen it in T.V. and it looks really weird. When I saw it all I see is something moving, How can you guys tell where the arms and the legs are? Is there a better method for looking inside the stomach without hurting the baby?
899: How big is the ozone hole? Is the hole getting bigger or smaller? Can the ozone layer/hole be repaired, by nature or otherwise? How long do CFCs take to reach the ozone layer and eat it up? How big will the ozone layer get by the year 2000?How could we stop the ozone hole from getting bigger? Will the ozone hole affect the earth's gravity? What will happen if the hole gets really big? Would we die?
900: Our class has joined the GLOBE project. We have been taking a lot of tests on our environment, including alkalinity. What is alkalinity about? I know that alkalinity is found in water. Is alkalinity good or bad for the environment? We took an alkalinity test on Oso Flaco Lake and the test showed that there was zero alkalinty. What does that mean?
901: How much longer will the world exist according to scientists?
902: If we know that Methyl Bromide (pesticide used by strawberry farmers that is hazardous to earths ozone supplies) is poisonous to the ozone, then why do we use it?
903: I have a problem, and I need your help to solve it. My teacher took away my laser when I shined it at another student in class, because he said it's bad for our eyes. He said I could get it back if I could find out WHY its bad for our eyes. Does it really hurt you eyes? If it does, why?ps. Please write back fast because the laser isn't mine!
904: Is there really weather on planets, and if there is, is it like on earth or is it colder or hotter?
905: I never heard of ozone near the ground.Does it affect in any way or protect us in others? Is there any way we can improve it? If the higher ozone gets destroyed, can the lower one protect us?
906: Why is it when I turn on the stove the flame comes out blue? Also sometimes it gets orange on the top? So why's that?
907: How do airplanes fly? What helps airplanes fly? How do airplanes manage to get in the air? What makes an airplane stay in the air? I got a paper out of the computer that gave me some Information about different pressure on the wings, but not enough to make it clear.
908: Im interested in airplanes. I want to know how they make the engine balance to the wings because the engine seems heavier than the wings and still keep the airplane on the air?
909: Do trains have gears? How fast can an old steam train go? Who invented the first train? What train is the fastest today? Why do trains have a side rod?
910: We are trying to find out how cameras work. We found information about why cameras need light,but wonder what is the difference between video film and rolled film. We also were wondering how the pictures get on the film roll, how much light is needed to take a picture,and what makes the film develop. Finally, our teacher says that digital cameras like one he has dont use film. How do we find out more about the differences????
911: I found this web site called Universe, The Big Bang. It said that the universe was created 15 billion years ago. Is that true? And how would someone know if we werent alive? Did the universe begin because of the big bang? The last question is, who discovered the universe?
912: Im interested in flowers. I found information about naming flowers, like bane means poisonous, but now I want to know more about why flowers can look so different - their shape, colors, size, smells - What is the purpose of the differences?
913: How do thay know there is water on the moon ? Why do they call it the moon? What year did the Astronauts go to the moon and what are their names?Who invented NASA?
914: I have a physics student who is researching skipping objects on water (rocks, balls, etc.). We have been looking for areas of research that deal with the factors that effect skipping and have been not too successful. Our question is what actually happens when a flat object is skipped?
915: What is the celestial event(s) that causes the calendar adjustment of a leap year?How many days with February 2000 have in it?
916: Why do we need lasers? What do we use lasers for? How do you build lasers? Who invented lasers? How big and powerful can lasers be? Why/how do lasers travel over long distances? Are all lasers red? What does the color of the laser mean?Why are lasers dangerous?
917: My school is surrounded by fields. I always see helicopters and trucks spraying the fields with pesticides. Our track at school is less than 20 feet away from those fields. We run a mile for P.E. about 2 times a month. Kids at our school always go home sick. Since our school is so close to the fields, I think that we inhale those pesticides. I was wondering if there is any information about short term effects like when you first breath it and if there is any information about long term affects like stuff you dont know thats happening but its happening? Thank you for your time.
918: Pretend you are one of the field workers, you are working really hard, and you are hot and sweaty. When you sweat your body opens up these little pores that let out the sweat. My question is, when the pores of a field worker open can pesticides or germs get in the body through the pores before they close?
919: Our beach had an oil leak sometime around 1992- 1994. I want to know how that oil leak could effect us and the animals that live in the ocean? Maybe you heard about the Unocal oil leak in Guadalupe. I havent found good information on the health problems. I want to know.... what are the effects to us.... where could I find out?
920: I am from Guadalupe, CA and I was wondering how we can fix pipes from leaking to prevent the disaster that happened to my hometown.
921: Can air pollution can affect weather? I heard that the hurricane Mitch was caused from pollution.
922: Somtimes I get an asthma attack from cigarettes,and other times not.Im wondering if the difference is in me or in the kind of smoke from different cigarettes?Can you help with this question? Thanks for your help.
923: Im investigating water treatment. I heard that a few years ago that we were short on water,and that they could make fresh drinking out of ocean water. Im wondering what things does the ground water have and ocean drinking water doesn't have?
924: I have been to LOS ANGELES and I stayed there for four days and my eyes started to hurt so I was wondering if pollution affects eyesight that cant be treated.
925: I heard tail pipe exhaust is harmful to the environment. Can you make a filter for a tail pipe that can block the harmful parts of the exhaust? (I guess I need to know what is in the exhaust that causes problems first)
926: I heard that cows lay out a lot of methane but would it harm other stuff like plants and vegetation? Does it affect the atmosphere?
927: We already know that there is a underground oil spill at the guadalupe dunes, and I heard that hospital waste washed up on the beaches. The question is Is the water safe to drink if they take the salt out of it? Does that process take out this other junk?
928: Are all chemicals harmful to future generations? Do bug sprays harm babies? What exactly causes air pollution? What type of diseases does pollution cause for humans? If pollutions was to enter a black hole what would happen?
929: If we limit the amount of useage of either cargo trucks or passenger cars, which of these two would most decrease the amount of air pollution produced?
931: Some questions about telephones:1. Do some telephones have capacitors and other telephones don't? 2. Do all phones work the same? 3. Why do you have to have a particular kind of portable phone to use in a car? 4. Can you call from an ordinary phone into space?
932: Why is the grass green?and Why are plants and trees green and how do they produce oxygen?
933: How can clouds hold water or snow?
934: Why does helium make your voice high?
935: How did they find atoms?
936: Why is it that your body starts to age? Why must your body get thin and fragile?
937: What is the hottest desert in the world?
938: I want to find out if UFOs are real or aliens are alive.
939: What kind of fuel does an F-22 Raptor and a F-16 use? (fighter jets) What are the best fighter jet and bomber from your point of view ?
940: How do we extract Helium (symbol = He) from the Earth's atmosphere?
941: If our solar system had two suns, would it be summer year round and would the sun ever set (i.e. would we ever experience nighttime)?
942: I was wondering if you could tell me about the moon and about eclipses. Why is it harmful to your vision? Ive heard that eclipses of the sun hurt your eyes. My teacher said hes seen moon eclipses that looked red. Why would that happen?
943: A student had the question about where the word neap comes from? The dictionary did not make a clear origin for the word.
944: Why do humans only use 10% of their brain?
945: Why do people have to die?
946: Why are clouds gray?
947: What is the most dangerous and wild animal?
948: Could life survive on a Asteroid? On Earth there are six characteristics of life. In the search for alien life forms are the characteristics of life the same?
949: Does space ever end?
950: Who invented the word volcano? When?
951: How long did it take you to become a scientist and is it difficult?
952: What does science think of god?
953: What are boogers and why do we get so many?
954: Why do we have freckles and birth marks?
955: Why do people dream?
956: Is there a fourth dimension?
957: What would you do if an earthquake happened in your neighborhood?
958: Is it possible for people to live in space? Why do people want to do that?
959: What causes weather?
960: Why do we have deja vu?
961: What is the most common cloud type around the world? why?
962: Where does the sun come from?
963: Where did all the water on Earth come from? Why is the Earth mostly water while other planets are not?
964: How did people discover the planets?
965: What is the scientific meaning for love?
966: Why can't we send an astronaut to Jupiter on a satelite or probe? Will we ever be able to send a human to the outer planets?
967: I am trying to find out what kind of poisions are in cigarette smoke. can you help me?
968: When I take a hot shower the mirror fogs up. I was told to run cold water in the shower first and then when I got in to turn the hot water up and the mirror wouldn't fog. This proved to be true. I do not understand - why does cold water makes the difference?
969: What causes storms in different countries?
970: What type of storm is the most dangerous?
971: Has the cure for cancer already been found? On the internet, I found referecnes to the cure for cancer (already detected in the years 1920-1930 by different scientists like George Lakhovsky, Nikkola Tesla and Royal Raymond Rife?). Using a Multi Wave Oscillator they ware able to regenarate the human body cells. Are there any modern science investigations done to confirm or deny this? Is this just a myth?
972: I'm interested in the solar system. I want to know about the things you are learning. I want to know about the special interests you have to share with me and what you are specifically learning about.
973: I would like to know if UCSB offers any engineering classes, specifically rocket engineering.
974: Why does mint have a "cool" taste? Is there a solid in the candy that is melting, which uses heat from your body for the phase change?
975: How do computers contain so much information in them? They are so small, but we are bigger and contain less information?
976: I'm doing a report on Ocean waves and we have to interview someone so I thought I could send out these question and see who responded. 1. How do ocean waves fit into physics? (Do they have friction, etc.)2. If you were to draw an ocean wave what would you label?3. how do the waves change with each season?4. If you were to do a presentation to a high school class about this topic what would you do?Thanks!
977: How do scanners work? How do they work to process the information and send it to the computer?
978: How do hurricanes begin forming?
979: How does respiration work? How fast does respiration work?
980: Do you think all stocks of polio virus should be destroyed with the upcoming eradication of the disease?
981: Why do some people believe schizophrenia as having a largely environmental component?
982: If I have a point on a map, defined by the latitude and the longitude, and I want to be able to determine the latitude and longitude at any point on a circle with a radius of 10 nautical miles from that point, what is the equation that gives me the point?
983: How does the speedometer in an airplane work? The more I think about it the more impossible it seems. I guess now they just use G.P.S. or something but during WW2 how did the planes know how fast they were going?
984: Why is gold so soft?
985: Fox program had questioned whether the Apollo program really send mem to the moon. Did we land on the moon? Do we have proof? Why did the flag move if there is no atmosphere on the moon? Why is there no crater under the spacecraft when it landed and when it took off? Why haven't we gone back to the moon if we have so much technology?
986: How long does it take before your eyes get damaged when looking at the sun?
987: What did we use our tonsils for in the past? Why do they get infected? Why do we remove them? Why don't we use them any more?
988: What characteristic of radioactive material creates mutations in organisms? Do certain radioactive elements have different affects on organisms, or is it purely chance that a material would cause mutations?
989: Why do worms come to the surface when it is raining ?
990: How does a flat screen TV work ?
991: Why can you set a one dollar bill on fire but it does not burn if you soak it first in a alcohol solution?
992: Why do we get coastal fog along the coast here in Santa Barbara over summer?
993: What makes the Earth's core so magnetic?
994: How can you calculate your age on the Sun?
995: Imagine that you make contact with an extraterrestrial intelligence. What units would you use to communicate ideas about how our planet or solar system operates? It seems that the units of time, distance, and mass which we use are based on features of our own system and wouldn't necessarily make sense to an intelligence from somewhere else (e.g. Second, Hour, Day, Year, Lightyear, AU, Kilogram, Meter, are all arbitrary or based on the location or movement of the Earth). What are units which anyone from our universe (but not necessarily our planet) would be able to recognize?
996: Is it possible to have a real life Furry. You know, the animals that can walk on two legs, and have human characteristics. Is this possible?
997: Is hand sanitizer really effective? Also, since it doesn't kill viruses, should it really say "Kills 99% of all germs!" It seems a bit of a lie. Isn't it better to just wash our hands?
998: Do puffer fish live in coral reefs?
999: Is the coral reef poisonous?
1000: Do clown fish live in coral reefs because the water is warm?
1001: Do Bumble bee fish eat flowers and honey?
1002: In chemistry class today, we were learning about how fuel works in powering cars and how oil is injected into a cylinder and the sparkplug makes it catch fire and the mini-explosion pushes the piston. Now, my question is, if only a small explosion is needed to push the pistons, why do we use oil and not some other flammable fuel that can do the same job and in more abundance?
1003: What type of sound waves does an accordion produce?
1004: How many joints are in a human body?

When we spray perfume into the air, we smell the particles of the perfume. Are those particles a liquid or a gas?

Some of us think that it is small, minute droplets of perfume liquid (like steam is condensed water vapor in the form of liquid.

Some of us think that since the perfume is volatile, that the particles that we are smelling are gas particles that have evaporated from the liquid perfume.

Could you please help us with this?

Also, how about the popcorn smell we smell when we microwave popcorn?

Thank you very much!!

1006: Can physical health effect your ability to learn?
1007: When a person gets diabetes, what organ is malfunctioning? What is it failing in the human body that produces any kind of diabetes?
1008: This question is not for school. I wanted to now sense you can't look at solar eclipses directly. Can you use sun glasses, 3d glasses or a cell phone to look at them without hurting your eye?
1009: I did the following experiment and I have a question. I took a lit incense stick and a small lit wax candle, then I held the lit tip of the incense stick on the wax of the candle such that the wax melts in a way that the effervesces of the incense stick passes through the flame of the candle. I saw that the incense stick has caught the flame. It looks like the flame of the candle has passed through the effervescence to the stick. How does it happen?
1010: Do multi-cellular plants and fungi possess immune systems analogous to those found in animals, with white blood cells?
1011: How do animals stay hidden in the sand as the tide is going out and the sand is going with the tide?
1012: What is the theory of evolution?
1013: What is microbial biotechnology?
1014: Why living things need to be fed?
1015: Why is GTP used in translation and transcription instead of ATP?
1016: I am trying to find out what I have found. Can you help me? I recently found another object even bigger than the picture attached. Thank you.
Click here to see what I found:
what I found 1 what I found 2
1017: I would like to do an experiment at home on how weather affects static electricity. Can you help me get started? How do I do it?
1018: If the density of the ostrich shell is about 3000 Hounds field Units, or 38 Grams/cm3 for a new egg... and the natural loss reduces the density for an egg of an ostrich to 28 around the year 1850, to 25 around 1750 and to 23 around 1700, and to 20 around 1600 and to 18 around 1500, or the weight of about 125 grams. Can this decline of density be a proof of the age of an un-mounted, engraved ostrich egg?
1019: How do divers equalize the pressure in great depths?
1020: Will the Earth be colder in a billion years?
1021: Does stem cells treatment can cure frontal temporal disorder?
1022: Are there any known short or long-term health effects from using an ionic hair dryer?
1023: Under which circumstances is that one cans feel heavier in a lift?
1024: Who discovers chemicals and how are they discovered?
1025: Iceland characterizes for its eruptions and earthquakes. How do Icelanders take advantage of Iceland’s volcanic nature?
1026: How do biosensors transmit messages to the cell?
1027: How many elements are there in the known universe?
1028: When do sperms come in the human body?

Given an Ostrich egg with known density, what is its age?
Here is the data file:
click here to see

1030: What happens when you drink too many energy drinks?
1031: Why do we need water to survive?
1032: In how many directions do our blood circulates in the body?
1033: How long do glow sticks last?
1034: What types of nutrients are in bananas and apples?
1035: What is the substrate of bulgaros and the organelle that makes this process possible?
1036: If cells are the smallest unit of living things, are cells made out of cells?
1037: If a woman has sex with two different men can the child have the DNA of both men and the women? The sex was say within three hours of each orgasm.
1038: How do invertebrates excrete their wastes?
1039: Hi,I have query related to UV index. If there is an UV index of 15 affecting a room made of clear glass, no special coating, no lamination, just simple breakable glass of thickness 3mm, how much UV will pass through and how much will be blocked by this 3mm thick plain, clear, no laminated/coated glass?
1040: How was the moon created?
1041: How do animals help plant reproduction?
1042: Which are the different techniques for preservation of patent print and plastic print? Both are the type of fingerprint.
1043: If a red blood cell is damaged. Does it get paralyzed or not?
Thank You.

1044: How long does it take for water to boil?
1045: How do scientists know what color dinosaurs were?

For my 8th grade science project, I have decided to conduct an experiment to see how the temperature of air affects the speed of sound in that medium. I have made some research on the subject, and I have found a design for an experiment to do this test:

I have to insert on one side of a plastic cylinder a speaker, delivering a pulse at a regular rhythm. On the other end will be a microphone connected to an oscilloscope, which will be mounted so that I can adjust its position from the pulse. By moving the microphone enough to change the position of the graph on the oscilloscope, I can find the relationship between the distance of the pulse and the microphone in relation to the increased time. By doing this several times with various distances I can estimate the speed of sound, and by heating or cooling the air in the tube (using applying ice packs on the sides, or heating it with a blow dryer) and measuring the speed of sound at those temperatures, I will be able to see the relationship between the speed of sound in air and the temperature.

Could any of you help me to do this experiment at your lab, where we will need a pulse generator and an oscilloscope? I will take care of the rest of the equipment that I need. I think that this experiment will take a couple of hours and I will do my best while working there.


1047: From my own research I learned that cancer cells are created by abnormal cells that have undergone a change,and they use the amino acids in your body literally eating you alive. Can cancer be killed by the depletion of the amino acids in a person's body? Also, how could we sustain their life because amino acids are the bases of a human protein and body, but they are also the fuel and build if cancer?
1048: Can viral RNA multiply itself inside the cell membrane with ribosomes and get through all of the cell defenses (such as lysosomes and splicer insomes)? Are there such things as defensines?
1049: I live in the Catskill Mountains. My grandma has polliwogs in a pond near her house. It's going to be freezing in a couple of nights. Will the polliwogs all die?
1050: How do you prove in an experiment that digestion occurs and how?
1051: What is goldfish? How do goldfish live? Where do goldfish live? What do goldfish eat? What are some goldfish habitats?
1052: How many chromosomes does a ladybug have?
1053: I was wondering if you know where can I buy callus initiation medium and clone induction medium? I'm doing a project dealing with plant cloning. If you know where to get them that would be a big help!
1054: Does a candle temperature affect its burning rate?
1055: I think that Science has successfully done cloning. I think that Science is doing progress in body preservation after death. Combining body preservation and cloning, can Science recreate and bring back a death body, let say after 4 years of being buried? I mean, can Science work on a skeleton, fixing every part of the body and bringing it back to life?
1056: What is enamel?
1057: Is fire something alive?
1058: How does the shape of football affect the distance the ball travels?
1059: How has science helped animals?
1060: How does water absorb heat?
1061: Why does the moon have so many craters?
1062: Why are some people visual learners and some people auditory learners? How can you test them to find out which one they are? Thank you!
1063: If I wanted to do a science project having to do with does middle school math stay with through adulthood? Should I test them on basic everyday life questions or more complicated math that is not used in everyday life?
1064: How does wearing a seat belt affect the damage to a passenger in a car crash?
1065: Is there bacteria life on Mars?
1066: Is there a possibility that there are some living things outside the earth?
1067: What are pop rocks made of?
1068: Is a thumbprint from someon\'s left hand identical to a thumbprint from the right hand?
1069: If red blood cells would become curved, what will it happen? How can we improve blood circulation & reshape red blood cells if they are damaged?
1070: Can you show me a picture of spider bites?
1071: How do the nerves in our tongue work?
1072: What are the scientific names for red meat and white meat?
1073: What popcorn pops the most kernels and what is the reason? For example, brands likeWinn Dixie Popsecret? Or Orville brand?
1074: How does the dizzying motion after-effect (from spinning on a swing) affect hand-eye coordination? How long does the effect last in comparison to how long one spins for?
1075: Hi, I am currently working on my eight grade science fair project. I am testing if stage fright is real or just in your head. I was wondering if there was an expert I could interview about my topic. Someone trained in Psychology is what I was thinking. Thank-You!

Hello, my name is Jenna. I am an 8th grade student at La Colina J.H. I am currently working on my science fair project. My Science fair question is:

How does a wetsuit affect drag?

My procedures are:
1.Wear a competition swimsuit.
2. Swim in 25m pool
3. Swim 100m.
4. Measure and document time of 100m swim.
5. Rest 2 minutes.
6. Repeat steps 1-5 nine times.
7. Average the times of all 100m swim sets.
8. After a week of rest, wear a triathlon swimming wetsuit of 3mm thickness neoprene with no arms.
9. Repeat steps 2-7 wearing wetsuit.
My hypothesis is: If the wetsuit does create drag then I think the competitive swimsuit will provide better speed and time then the wetsuit. IF you have the time I would really appreciate answers to these questions.
a. Do my procedures sound like they would work for my experiment?
b. Is there anything I could do to make my experiment better?
c. Would it be better to do five trials of the competition suit and then five trials of the wetsuit on one day then do the same thing a week later?
d. Is there any vital information about drag I should know before conducting my experiment?
e. What is the best way to measure drag?


Hi scientists,
I am in 8th grade and I\'m starting to work on the science fair project. The question for my project is:
How does sight affects taste?

I will test that by having 3 equal amounts of soda drinks in clear cups. One will be cherry, one will be grape and one will be lemon/lime. The volunteers will first taste each drink and try to guess the flavors. Next, I will blindfold the volunteers and have them guess again. Then I will add food coloring to the drinks to make the cherry look like grape, lemon/lime look like orange and grape look like root beer or cocoa cola. The volunteers will then test each drink and tell me what they think each flavor is. My hypothesis is that on the control and blindfolded test, most people will guess correctly. On the incorrect colored test, I think people will guess the cherry to be grape, the lemon/lime to be orange and the grape to be coca cola.

a. Do you think that the procedures should be done differently in order to answer my question (How does sight affects taste)?
b. Do you think the colors of each flavor make a difference, or should I change them?
c. Do you think my hypothesis is correct?
d. Is there anything important that I need to know before I start conducting the experiment?
e. How many volunteers do you think I should have to make the experiment reliable?
f. How do you think I should graph this information?
g. Do you think this are too many variables to deal with, and should I make it to just one flavored drink?
h. Is there anything else you know about why sight effects taste that you think is important to conduct this experiment?
i. What do for your career, and what is your knowledge in this topic?
Thank you so much for your time and expertise on this subject. This will help me greatly on my science project.

1078: How does chlorine affect material over a long period of time? How does chlorine affect peoples’ health?
1079: Does your nose run in space?
1080: Why chilly tastes bitter?
1081: What elements are found in the compound methoxycinnamate?
1082: I am testing the quality of a fingerprint lifted with different materials used. 1.What conclusions can I expect? 2.What are good materials I can use to test and what are the procedures that follow?3.Is there new technology that helps investigators find the best quality of a fingerprint lifted?4. What do you do on a daily basis for your job?
1083: Do any aliens exist? Does any planet have conditions to live?
1084: How does music affect plant growth?
1085: 1. What part of the brain stores and helps with concentration? 2. Can music improve test scores? 3. What part of the brain does music trigger? 4. How can I make my project the best it can be?
1086: I am doing my science fair project which is: Does chewing gum improve memory? These are my questions:1. What section of the human brain holds memory 2. What techniques improve memory? 3. Can chewing gum improve your memory? 4. How does gum stimulate the brain? 5. How can I make my project the best it can be? 6. What is your profession? Thank you

My science project is: How does music affect blood pressure?

1. How do you think music affects blood pressure?

2. Can music be healthy to listen to?

3. How can I make my project the best it can be?

1088: How does a rocket travel from Earth to the moon?
1089: What happens if your body does not produce red blood cells? Is this something that has happened to anybody?
1090: What is tetnus?
1091: Does the color of a candle affect the rate of burning?
1092: I am working on a science project about how color affects taste and I was wondering if you could help me with advice. I would like to interview a scientist via email. I would be asking questions like: Are there any flaws in how I set up my experiment? What do you think is the most efficient way to test this hypothesis? I would also like to do some questions about the topic itself.

Thank you! What is your favorite part of life science? Least favorite?

Also, I was planning on conducting my project by:
1) having 15 test subjects throw 5 tennis balls each into a hoola hoop / bucket 10 meters away.
2) spinning 15 test subjects on a swing for 30 seconds and then having them immediately throw 5 tennis balls each into a hoola hoop/bucket 10 meters away.
3) once the subject gets off swing I will have a timer set to time how long they feel dizzy for and will stop the timer when they notify me they no longer feel dizzy
4) recording and comparing results

Do you have any suggestions to help make my experiment more accurate? precise? better in general?

thank you so much!


I am doing a science project on How smell affects memory and I am interested in finding someone to interview and answer my questions.Here are my questions, and I hope to hear back about someone I can interview. Thanks. Questions:

1. How are the brain and olfactory bulb connected?.
2. How does memory work?.
3. How much of the information one learns is remembered for the average person?
4. Are smells remembered?
5. Can perfumes be linked to memories?
6. How does the brain store memories?
7. Where does the brain store memories?
8. Are there certain smells proven to trigger memories?
9. What are some smells that have effects on the brain?

1095: Does music help plants grow?
1096: What makes up salt?
1097: I am doing an experiment on ice cubes melting in salt water or fresh water. I've done the experiment and it melts faster in fresh water. For my project, I need to explain why this happens and why this experiment is helpful to humans. My mom does not know. I also need the name of the person who answers my question. Thank you so much. I know it is late but this project is due Nov. 30.
1098: For a dog to be a lefty or a righty, does it have an effect on the animals physical or mental behavior?
1099: Is there a speed at which the force of the car's motion makes it so that the seat belt can no longer protect the passenger?

Hi, I am doing a science project on how sight and smell affect the taste of food. I am testing 5 sugars and I have five questions.

1. Have there been experiments done like mine? If so what were the results?
2. What do you think my results will be?
3. Do you know the connection between smell and taste?
4. Have you tested the connection between the two senses often?
5. What do you do daily while working?

1101: What jobs did you have previously that led up to your career? I am testing how different surfaces affect the quality of a fingerprint lifted, what conclusions can I expect? Are there key surfaces I should use in my experiment? - What are the different types of fingerprints and is there a specific type of fingerprint that is more visible than others?
1102: How to make electricity?
1103: Does the amount of stretch in a rubber affect the distance the rubber band will travel?
1104: How does the sun affect surface ocean currents and deep ocean currents?
1105: How does the moon control the tides? Can you put it into a way that is easy to understand?
1106: Why does a fruit turn brown?
1107: Do people have better visual or auditory memory?
1108: What is a good experiment with chicken bones for a Science fair?
1109: How are human organelles affected?
1110: What are some bad things that organisms do for our cells?
1111: Does the panda have a circulatory system?
1112: Why do we grow? How did we come upon to be humans?
1113: I am growing plants in 3 boxes with a light source cut in different areas. Trying to find out if light direction affects its growth. What kind of plants are the fastest to grow ? I am trying sweet peas. Would that work ? Thank you !
1114: Why do plants need water?

Hi! For my science fair project I'm doing an experimenting plant gravitropism, by growing three bean plants upside down, and three right side up. I have some questions for you to please answer:

1. For the upside down bean plants, I just put the seed in normally, however it still grew upwards. The roots came out of the bottom of the fiber seed starter pots, and the shoots burst through the pot and grew upwards! I expected the plant grow down, and then curve up.
2. What would have happened if the pot was clay? Would the shoot have turned around when it reached the top, and grow out the bottom?
3. What should I have done if I do the experiment again?
4. I know about negative and positive geotropism, and I now feel bad for having expected it to grow down and then up! Thanks so much!- Natasha


My science fair question is: How does music affect concentration? I have 4 questions.

Question 1. What is your Major?
Question 2. What type of music would be the most affective?
Question 3. Do you think my procedures are correct?
Step 1. Get 10 people.
Step 2. Get 10 groups of 10 mazes( same level mazes).
Step 3. Have each person do a maze one-by-one without music and time them.
Step 4. Repeat 5 times per person with a different set of mazes for each trial.
Step 5. Record observations and data.
Step 6. Have each person do a maze one by one with music.
Step 7. Repeat 5 times per person with a different set of mazes for each trial.
Step 8. Record observations and data.

Question 4. What is your prediction of the conclusion?

Thank you.


1)Is it better to use a bowl or a container to make gelatin?
2)Does it matter what kind of water I use to make gelatin? Or is it better to use faucet or purified water?
3)Where do you work?
4)Is there anything you suggest me that I should include to supplement my background for my experiment on gelatin?

1118: What elements or things besides water can exist in the 3 states, solid,liquid and gas?
1119: If you dig a hole in the center of the Earth and you drop a stone in the hole, what will it happen?
1120: 1. What do you think the effects of magnetism will have on plants? 2. What did you major in? 3. Do you think weather will play a role in magnetism affecting plant growth? 4. Do you think lettuce or pansies will have a greater increase of growth based on the affects of magnetism? 5. How many plants should I use to be sure my experiment is based on the fact that magnetism affected the growth?
1121: If I dig a hole through the earth and drop a brick in it, what will it happen?
1122: Is the world going to end on Friday?
1123: Will the solar system end soon?

In my experiment, I will be testing how effective the pinky is at estimating the temperature of water. I was wondering how many sensor cells there are in the human pinky?

I recently did some research on how the brain gets these sensory details from the skin and found that the part of the brain that receives these signals is called the Hypothalamus. Where in the brain is the Hypothalamus and how large is it in comparative size to the rest of the brain.?

What is the rate of temperature increase or decrease to room temperature for water that I should use in my experiment?

When using statistical analysis, what is the most effective way to have realistic numbers?

I plan on using set ranges of temperatures for people to estimate the temperatures for. I am going to tell them what these ranges are; just that they are hot, room temperature, and cold. I plan on having the cold at around 30-40 degrees, the room temperature from 60-75, and the hot at 100-110. Do you think this is a good idea or should I just have a set temperature for each section of the test?

Thanks for answering these questions for my Science Fair Project


My science experiment is about plants adjusting to their environment to reach light.I have one plant in each of my three boxes. In each box there is a cut out hole and the hole is in a different area, in which the plant must adapt. My first question is:

1. I have planted my sweet peas but it takes them around 10 days to sprout. When do I record in my data table?

2. How should I record its growth when it hasn't even sprouted ?

3. Once it sprouts, should I record its growth as day 1?

Then, should I record every 2 day or 3 days?

Thank you very, much for your help !

1126: How would I be able to measure the texture of a cake according to its fluffiness?

How has musical therapy been effectively used?

Is a heart rate monitor the best tool to monitor heart rate?

What background do you need to be a musical therapist?

Will the music someone is listening to change their resting heart rate?


Is it possible to combine Gold, Titanium, Hydrogen, and Nitrogen into a single molecule? I would like to know the shape of the molecule, and the chemical formula. Is there more than one possibility? I would really appreciate your help here. I am trying to make a computer game about space, and this molecule will be the fuel for engines, you can grind it up and make it lubricant for the engines, and it\'s deadly in its liquid state.Thank you very much!


I hope you can help me. I am Irish, but I go to school in North London as my parents live here. I am working on an experiment on how to take soap out of water. I have blown air into the soapy water for hours but more and more bubbles seem to appear. I have 2 questions:

1. If I blow air into the water for long enough will doing this take the soap out of the water?

2. If I vacuum the soap bubbles will it burst them?

1130: What are the effects on a fish that is dyed?
1131: Why is growing plants outside better than growing it indoors?
1132: 1. What is music therapy?
2. What kind of degree must someone have to become a music therapist?
3. What kind of music would affect concentration least? Most?
4. How many times should I test the experiment?
5. What kind of predictions do you have for the outcome of the question: What kind of music affects concentration most?

1133: 1) Have you ever done an experiment where you test the dissolve time of different pain relievers?
2) What are your learning credentials?
3) For my experiment, I am testing the dissolve time of: acetaminophen gel capsules, acetaminophen coated tablets, and non-coated tablets. What other types of pain relievers would you use for this experiment?
4) What is your prediction of conclusion for this experiment?

1134: At which phase of cell cycle does the mitochondrial DNA synthesis takes place?
1135: What is the main difference between a Newton meter and a spring balance?
1136: I am doing a science project about types of music on plants. I found your contact information on your website and I was wondering if you could answer some questions for me.
What types of music would be good/bad for a plant?
Are there specific plant I should use?
Lastly, how much music will affect the plant
Thanks for your time and help.

1137: Why are crystals important to science?
1138: I'm doing my science fair project on black holes. I learned that inside a black hole there is a very strong gravitational pull. My hypothesis is that around the black hole there might be a spinning force (similar to tornadoes)as the galaxy rotates around it. This spinning force should draw objects toward the black hole. Am I on the right track? Do you have any suggestions about how to test my hypothesis?

According to question: click here please
So since i'm doing 5 cakes using whole eggs and 5 cakes using egg whites. Would I compare the density of the whole egg cake with the density of the egg white cake and then from comparing both densities I would find which one is fluffier right?

1140: Do older minds work differently than younger minds?
1141: Does everybody have the ability to see the same optical illusion?
1142: What is an optical illusion?
1143: Are there any physical differences in eyes that are looking at optical illusions and in eyes that are simply reading?
1144: Does it take longer for an older person to see a picture in an optical illusion than a younger person?
1145: Will a sled with two or more people on it go down a hill faster than a sled with one person on it? Assuming all of the people weigh the same, and the sleds are the same.
1146: Where does the heat go when a surface coated in multi-wall carbon nanotubes absorbes this heat? If we coated a pool cover in the multi-wall carbon nanotubes, would it be possible to channel the heat into a hot tub using copper wires?
1147: Why do zebras have stripes?
1148: What is the sincerity of using dinosaurs as a link between birds and reptile?
1149: Why do we have eyelashes? How fast do they grow back?
1150: What are the properties and characteristics of corn syrup?
1151: Which color does absorb most heat in color pans?
1152: What are the effects of burning Phos-check {fire retardant} sprayed on the wood in a wood burning stove in the home?
1153: How does weather affect the clothes we wear?
1154: Say, I was lost in the wilderness. All I could see was moss. I was really cold. Would I be able to use that moss as some type of blanket?
1155: Do bugs grow in moss of any kind?
1156: How does the moon cause high tides?
1157: I am doing a project for the science fair and was wondering if your website had any facts about the affects of music on plant growth, because so far my results on the internet have been various. If you do not mind please help me. please!!!!!!!
1158: How many moons does Saturn have?
1159: Do plants grow faster if they are outside or inside with fertilizer?
1160: How does music have affect on plant growth?
1161: Hi I was wondering if you could help me answer the following questions for my science project about how preferences bias our choices:\r\n1: can color preferences have biological origins?\r\n2: could preferences made by different stimulation of neurons in the visual cortex affect other brain functions like our behavior?\r\n3: if i tell the test subject that they need to pick out 20 m&ms as fast as possible do you think it would affect the colors they choose compared to if i just told them to pick whichever 20 m&ms they like (and not tell them to go fast)\r\n4: How is the visual part of you brain connected to the area that controls your hand coordination\r\n5: what other factors might affect the colors a person chooses out of a bowl of m&ms

What is air pressure and absolute pressure?
What is Gear direction?
Why car tire get flat in a busy road?
Why ships do not sink?
Why do flames fire go up?

1163: I am doing a school project on electricity. Any ideas?
1164: Does excessive exercise lower your immunity levels?
1165: What is the affect of music on plant growth?
1166: Are people born more flexible than others? If so, why is this? Is the cat the most flexible animal with vertebrae?
1167: How is the asthenosphere different from the lithosphere?
1169: I'm doing a science project on mold and grew some on different breads. I was wondering if you could tell me what kinds of mold I might have grown. Some grew on an English muffin, french bread, and sourdough. It was all green, and some yellow on the English Muffin Bread loaf.
1170: How does a nuclear explosion happen?
1171: If you go faster than the speed of light will you go back in time?
1172: Why do we sneeze?
1173: Why do cells require oxygen?

Hello, We had a very unusual reaction. An art student created a clay sculpture that was covered with pennies and fired in a kiln.

The newer zinc pennies reacted and formed long (4 to 6 inch) hollow spiral white tapered tubes, orange on the inside. Very odd looking. I could send photos. Have you heard of this? Why the tubes?

1175: Why do you weigh less on the moon than on earth?
1176: How long do I need to do a science project using plants under different color lights? My goal is to see if the different color lights effect their growth.
1177: Is there another way by which flowering plants attract animals? How does it help a plant to have an animal eat its fruit?
1178: What is the scientists view on euthanasia?
1179: Is nichrome used in electric heaters?
1180: How do fish breath from their gills?
1181: Why do oranges and lemons have citric acid?
1182: Why euglena is not considered either a plant or an animal?
1183: Why are motorists told to check the pressure in car tyres while the tyres are cold - in other words, before they go on a long journey?
1184: How does a plant make its own seeds?
1185: When you put your finger over the nozzle of a syringe and try to push the plunger in, it is difficult to do this. Can you explain to me, why?
1186: I just did the Rubber Bones experiment and successfully remove all calcium carbonate for the chicken bones. However, I added a step by then soaking the bones in Whole, 2%, and fat free milk, to see if the calcium in the different types of milk would help the bone harden back up. It didn't. They were actually softer afterwards. Can you tell me why?
1187: Do ice cubes melt better in boiling or cold water?
1188: What happens if I shine a torch directly at the wall?
1189: How do plants use Photosynthesis?
1190: What is a good conductor of heat for pipes in the solar panel?
1191: In real life force fields, is it possible to create a small pocket dimension where we can set temperature {low}, pressure{high}, so that H2O can be formed from H2 and O2 gases, within few minutes or reaction?
1192: Why does the moon have phases?
1193: Why are planets in the shape of a sphere?
1194: Why is it that when you build a sand castle without water it falls and when you include water it stays up?
1195: How were Earth's layers formed?
1196: Why does it take venom to make anti venom?
1197: Why does the ocean have salt?
1198: Why is it when you build a sand castle without water it falls and when you include water it stays up?
1199: Is there any chance of life up in space?
1200: Does changing the temperature of a balloon affect the circumference of the balloon?
1201: Is it true that fireworks have magnesium in them?
1202: How big is our heart?
1203: Does fresh water freeze faster than salt water and why?
1204: What is the most dangerous disease for human beings?
1205: Why are there still crystals in the bottom of my Kool Aid?
1206: Hello there,
I am a masters graduate in Mississauga, Ontario, Canada. I would be much grateful if you could lead me to an online dictionary in evolution expressions or even Biology, as I am developing lectures in the Origin of Life. Sophia

1207: If you took plane blood from a bird and injected it into a frog, then bred the frog with another frog, would you get a different species of animal?
1208: Are farts germ carriers? I was thinking about it, and SOMETHING goes from one body into another. Is airborne disease not an issue because clothes are like masks?
1209: How (as in what biological mechanism) do bats know when to wake up after hibernating?
1210: When was Pluto considered a dwarf planet?
1211: How long does it take for a baby animal to grow fur?
1212: How do snakes move on the ground?
1213: How are fireworks made?
1214: How do you grow a lily pad under the water?
1215: Do different colors of light affect the growth of plants?
1216: Why is it that human females usually have dominant traits and human males usually have recessive traits?
1217: What god was Pluto named from?
1218: Why do animals have wet and pink noses?
1219: Sientists, I have a question for you. I am going to ask how do our TV works inside?
1220: How are abalone shells made?
1222: When two hydrogen atoms and two oxygen atoms combine, it creates water (H2O). Where does the second oxygen atom go?
1223: What is it meant by cell specialization?
1224: Why is it so little known about octopuses?
1225: What is oxygen?
1226: What color would your blood be if your skin was blue?
1227: If humans receive biochemical damage from solar radiation what can happen to them?
1228: What substance is made of 2 atoms of hydrogen and 2 atoms of oxygen?
1229: Do you believe that genetically modified crops may be a viable solution in areas of the world with challenging climates?
1230: Why do animals have whiskers?
1231: Why does water have no flavor?
1232: Why cannot we breath under water?
1233: Why does earth have an equator?
1234: How do you make chocolate?
1235: Why doesn't the water from earth fall into space?
1236: Where do tornadoes come from?
1237: What is Gold used for?
1238: How can students avoid getting shocked on plastic slides? What can we build?
1239: How did the Solar System started and when?
1240: How come our solar system does not go off to space?
1241: What was the first living thing on earth?
1242: If I dug a hole through the earth I would be digging down. What would happen after I passed the center. Would I be digging up? And how could I do it without burying myself somewhere between the center of the earth and the other side? (I understand that this is just a theoretical question)
1243: What happens when u put a chicken bone in vinager?
1244: How does spin affect the trajectory of a kicked soccer ball?
1245: How many times do we blink a day?
1246: How small can a particle be?
1247: In water, why don't the hydrogen and oxygen separate?
1248: If a smell is made of solid particles floating in the air, if you smell something, does that mean the object being smelled is losing volume and mass?
1249: How do the clouds move?
1250: Can a plant stay alive without light?
1251: Does the sun grow or does it stay how it is right know?
1252: How do you make a light bulb light up with a battery, a negative and a positive wire, and what kind of battery would you use?
1253: Where did the planets get their names?
1254: When you put water on clothing, why does the color look strong?
1255: What things in a house are conductors?
1256: Are all ionic compounds salts, or vice versa, or is the relationship between the two categories different? If so, how?
1257: How do people help plants?
1258: How many people will have a marine biology job in the future?
1259: How can I check if I see red color for example the same ways as you would see it?
1260: Has there ever been a human clone? What are your thoughts of cloning in the future? Okay? Not okay?
1261: Why does saltwater heat faster than freshwater? Links would be appreciated.

What is the chemical composition of the Iron Gallus Ink used by Leonardo in his codices.

He writes how to compose the ink in:
Codice ARUNDEL 170r
Codice Forster III 39 r.
Many thanks.

1263: Do smaller bones soaked in vinegar become bendy sooner?
1264: Are there elements yet to be discovered?
1265: How is silver made?
1266: How fast does the space rocket go, so it can get through our atmosphere?
1267: Does different color light change the color of a plants petals or the growth?
1268: How do I prove geothermal energy? Is there a way I can turn a light bulb on using geothermal energy?
1269: Why does hot air rise?
1270: Why do mirrors reflect?
1271: Why can fire spread very quickly?
1272: Geology says high mountain peaks are formed in subduction zones where a continental plate riding on an oceanic crust meets a similar plate. This is also as a result of the seafloor spreading that has to be compensated for, due the fact that the Earth has a unit Mass and Area. My question here is: why has the mountain range (especially Everest) not extended it's peak indefinitely, since a new seafloor is created at the mid oceanic Ridge? Thank you
1273: Is it possible to refill the holes of ozone? Can a new compound be discovered which could act as a protective covering for earth from harmful rays of the sun? If this is possible, please tell me the elements which are protective in function to UV rays . Can you send me related web sites where I could learn more?
1274: Before I start I just want to say thank you for this web site, I love it. I learned that plants need sunlight, why are there some plants which do not need sun light, and why?
1275: How would the shuttle cock change its position in air, if it were hit with a small force from a badminton bat?
1276: How did minerals form in our earth?
1277: Can we survive on the sun?
1278: Who was the first person alive before the cave men were born?
1279: How did all the houses and streets looked before the dinosaurs came?
1280: What can form slowly at a convergent boundaries?
1281: Hello. First of all this is not a homework question but my personal science question. In a voltaic pile Zinc and Copper electrodes are immersed in salty water (NaCl,) and are electrically connected. Zinc ions lose electrons to copper and get into solution, as copper hydrogen gets reduced and bubbles up. Why hydrogen ions do not get electrons from the zinc electrode directly, but get them from copper? Please help me with this question, it has been long time and it troubles me.
1282: We know that the sun is not the biggest star, but is it the hottest star?-Thanks.
1283: Why do marshmallows expand in the microwave?
1284: What is a chemical?
1285: If black color absorbs the most heat, then why is plant life mostly green?
1286: What does really mean to have 10 dimensions?
1287: How many cells do we have in our body?
1288: Thank you very much for answering my previous questions. I want to know if science believes in the existence of God, that the universe was all created by him?
1289: What are phospholipids?
1290: So, my students have been working with DC power supplies testing different types of circuits. While doing this we noticed something unusual while connecting two light bulbs in series. Yes, the current is lower than it would be for a single bulb and yes the bulbs are dimmer but they are not equally bright. In fact, one (the first one electrons are passing through) is probably four times as bright. This happened with every single class and every single apparatus. What's up?
1291: What is color?
1292: Hello Sir, I am a post graduate student in the field of biotechnology from India, but there are some questions right from my schooling days that are still left unanswered for me. We were taught in the schools that Birds live in nest, spiders in their web but i really wonder do these birds and spiders really build there nests and webs for living or they are made for other purposes like Nests are build for laying eggs and bringing up there young ones and webs are build by the spiders for catching prey?
1293: How do venus flytraps and pitcher plants get their energy from the food once they have captured it?
1294: Which is the highest percentage of salt (salinity) in sea water?
1295: Do basketballs that are fully inflated bounce better than flatter ones?
1296: Which flower has the most peddles?
1297: Do elephants feel pain like humans?
1298: Why do elephants cry and get emotional and also why do poachers kill elephants when elephants did not even do anything to them, they are just trying to live a good life?
1299: Do elephants have feelings?
1300: Are elephants like humans?
1301: What is the largest piece of gold ever found?
1302: What do owls eat?
1303: What makes a basketball to bounce higher?
1304: What is meant by Morse Code?
1305: What kinds of animals live in the Hadal zone?
1306: Can a plant move from one place to another?
1307: Why is the sun made up of plasma and nitrogen?
1308: Why there is no winter in Davao?
1309: What color is our blood inside of our bodies?
1310: How can light be matter or not?
1311: Old-time kitchen lore suggests that things cook better (evenly and without burning) in heavy cast-iron pots. What desirable characteristics do such pots have?
1312: What irreversible processes occur in a gasoline engine? Why are they irreversible?
1313: How effective has science been to protect endangered animals?
1314: Why does a rainbow occur?
1315: Hello, Can you please help with the following project : I want to add 2 electric currents one from source 1 and the other from source 2 and get the total current .What type of device should I use to get the total currents from 2 differently current sources ?Thanks so much for help.
1316: How do pandas look like?
1317: How did salt get into the ocean?
1318: How does salt accelerate the rate of corrosion? For example, for an Iron nail wrapped around using Zinc metal strips, how does different concentrations of NaCl (distilled water, 0.25M NaCl & 0.5M NaCl) affect the rate of corrosion? What is the in-depth chemistry behind the theory? Thanks
1319: Why does milk overflow when boiled ?
1320: H2 and O2 combines to give water.This reaction is spontaneous however it is not found to occur in nature, why?
1321: When mixing H2(two hygrogens)and an O(oxygen), scientifically would you get water?
1322: Is there any cell that has round shape?
1323: In our class we want to know how long does it take to digest a doughnut? It was asked if it was really 10 days?
1324: Thank you very much for opening this fantastic forum to benefit students from all over the world. My question is if the planet Earth emits heat from radioactive decay, I will also be right to say that it emits all the dangerous radiation as well. If so, why are humans more afraid of a nuclear explosion when we have been exposed to dosage and dosage of nuclear radiation naturally? And we seem to careless about it.
1325: Hello,Today in science we were learning about Darwin, evolution, and artificial/natural selection. I was wondering why there aren't sub-species of human like there are types of geese and breeds of dog.
1326: How are phobias triggered, do childhood experiences affect this, and how does the brain process this information so it becomes a phobia?
1327: Can plants grow without photosynthesis?
1328: Where are the stoma located on hydrophytes, xerophytes and mesophytes, and why is it located there?
1329: What could we do to find out if seeds are alive or not?
1330: What are the predators of a California freshwater shrimp?
1331: If dinosaurs became extinct 65 million years ago and humans only came about .25 millions ago, our perception of dinosaurs and how they look (courtesy movies such as Jurassic Park) is just conjecture- albeit a brilliant one- is it not? We can't really know what they looked like, can we? Even the accuracy of our technology ca\'t ever be truly determined, can it?
1332: What effect does color have on heat?
1333: If black absorbs the most heat, then why is most plant life green?
1334: When you study germs, what color are they?
1335: How does pandas help scientists?
1336: How do fraternal twins differ from identical twins?
1337: Hello my question for you guys is how this website came to be and how you help kids on their science fair projects and etc... like me! Have a nice day and get back to me soon!
1338: If light is non-special, then it has no volume or mass. But how can light exist in the third dimension without volume or mass?
1339: Are their any fossils that haven't been found yet?
1340: Who discovered electricity? It is super cool but I do not know who discovered it. Does the iPhone use electricity?
1341: How is milk produced in a female body?
1342: Why can we see colors? And why can we see light?
1343: How are seeds formed?
1344: How the earth and other planets are circling around the sun, and why they are not going away from it?
1345: If the earth would not revolve the sun, but were only rotating its own axis. What will it happen?
1346: Could we make a mode of transportation from one country to another through the interior of earth, by using the gravitational force as it would be faster and fuel efficient?
1347: Why did some ships and planes disappear in the Bermuda Triangle?
1348: How does a talkie-walkie work? What kid of circuits are inside those devices?
1349: What kind of chemicals makes cotton candy?
1350: Who found out that there were planets?
1351: How was space discovered?
1352: Is there hair on the bottom of our feet or on the palms of our hands?
1353: How does a rocket travel from Earth to the moon?
1354: Why science doesn't understand the language of magic?
1355: Is it true that a compass stops working in the Bermuda Triangle?
1356: What is the Gulf Stream?
1357: What causes small animals to grow, while big animals tend to shrink? (over long periods of time) My teacher was talking about how for example spiders used to be bigger? But how can that be? Yes I learned some things about evolution and how over long periods of time things tend to change, but why shrink? Why grow?
1358: Why does the central US have the most tornadoes in the US? What are the causes? Thanks
1359: Why plants use only CO2 for photosynthesis, and why not any other gas with carbon atom?
1360: Why the tooth ache is increased at night time as compared to day time?
1361: Why fluoride is essential for tooth? Is any other member of Halogens family helpful in tooth health and protection?
1362: How does a tree get turned into paper?
1363: What kind of storms happen in winter?
1364: How dose the water get attracted to the moon?
1365: Why do animals need energy from the sun even if they get energy from the food they eat?
1366: What would it happen if all the water on Earth would get frozen and the only gas present on Earth would be hydrogen?
1367: Light has many sources. The greatest is the sun. Are scientists using other light from other stars to produce energy?
1368: What is the process that makes fruits and vegetables to grow?
1369: What chemical reactions happens in nail polishing?
1370: To which animals are pandas related?
1371: Who discovered lighting?
1372: Is the effect of SHAPE of a floating body taken into account by the Archimedes principle?
1373: Why are black colors the best absorber of light/heat?
1374: Can you tell me how bright is the sun?
1375: What makes a ball to stop when it is rolling?
1376: Which organisms have the ability to regenerate limbs, eyes, and internal structures?
1377: Are there any organisms which can regenerate their entire bodies from a central section, or from one limb?
1378: Why is it detrimental to the environment and humans when batteries are not disposed of in a responsible way?
1379: How does it work the test to discover the focal length of a pair of glasses?
1380: How is gold taken out of the ground?
1381: What is the principle for measurement of Precipitation? How it is measured?
1382: How can brain get cancer, if nerve cells can't under go mitosis cell division, so how does it get cancer cells?
1383: What is the meaning of "biology"? We were taught that "bio" meant life, and "logy" meant "the study of". Have you been taught this also? Thank you for the courtesy of a reply.
1384: What type of frog multiples very fast like in 2 days that lives in Michigan?!?
1385: Why is there no snow on the ground near the edges of large lakes?
1386: Hi,
I am an Iranian girl . I need your help . I study Cell and Molecular Biology and I want to write an article a bout Sponges Power restored. I need some resources and your input, but my English is not very good. Please help me.

1387: Is fire a living or a non-living organism?
1388: How do scientists explore the crust of the Earth?
1389: Why whales cannot breathe in water?
1390: Is there a living thing that does not move?
1391: Can you explain string theory for me? Thank you.
1392: How do we know the distance that a star is from earth? How is it calculated? Also how do we know how hot stars are? And how do we know that there is plasma on them?
1393: How does a boat float if its heavy?
1394: What is the minimum number of cells a living thing can have?
1395: Does an ant have the intelligence to go through a maze?
1396: How does moisture affect the rate of corrosion?
1397: Why do plants need water?
1398: How long does it take for ice cream to melt in room temperature?
1399: Because paper airplanes are small, would they fly faster? If not, why?
1400: How do sound waves travel?
1401: On a molecular level, why does condensation form on the outside of a cold glass of water whereas bubbles form on the inside of a hot glass?
1402: Could any of the "gas giants" (or other planets) in our solar system ever become Sun's? Let's say the Sun burns out, if Earth has somehow been saved from certain demise, could a "gas giant" be ignited as if it were a spare lightbulb? If so, would our solar system change directions and start to rotate around that planet?
1403: Does an ant have the intelligence to go through a maze?
1404: I am trying to help my 19 year old in a Biology class. Could you help me and be specific in the differentiation of pollen, male pine cones, female pine cones, and seeds?
1405: How do acid rain works?
1406: If two boys were to come inside a woman, would the sperm make two babies or one with all parent's genes?
1407: Could tectonic plate movement create another super-continent?
1408: Why does gunpowder explode when lit?
1409: What are things that are alive, but display characteristics of non-living things?
1410: How dooes a caterpillar make a cocoon?
1411: Who first discovered the proton?
1412: Hello.I am researching the role of the spleen in the immune system, particularly in response to peripheral cytopenia. Do you know what happens to the spleen if it experiences a sudden increase in abnormal erythrocytes? Does this cause any spleen pathology? And finally, what does loss of spleen function mean for the immune system? Thanks.
1413: Can water beat fire?
1414: Where does wind come from?
1415: How do Zebras get their strips?
1416: If paper airplanes are small will they fly faster?
1417: Would a shark be able to survive in the ocean without a dorsal fin?
1418: What is the difference between mimicry and camouflage?
1419: Why is a scientist important for the world?
1420: Why do baking soda and vinegar react to each other?
1421: Why does cut fruit turn brown when exposed to air ?
1422: I want to know what electrode would I use a mile in the ocean for creating an arc weld? This answer will create my carrier with I graduate.
1423: Does petting a dog could affect a person's blood pressure?
1424: How much harder an aluminum bat would hit a ball compared to a wooden bat?
1425: How many types of living things are are in the oceans, rivers, and tide pools?
1426: Why does the Earth have grass?
1427: How thick is an eggshell?
1428: Do all atoms have the same number of protons?
1429: Why do we need cells to live?
1430: Do animals breath out carbon dioxide?
1431: How do you know a cell is alive or not?
1432: Why is it that water is less dense in solid form than in liquid form?
1433: How does the earth movement around the sun affect the stars patterns we seen in the sky?
1434: What is a nutrient or anything that comes from outside of the cell membrane, which does it go to the nucleus (even if it ends up like a waste)?
1435: I am from Texas and I'm doing a project over the pros of desalination for school. I was wondering if you could give me any insight to the advantages of desalination and is desalination going to be used a lot more in the USA. What are the cost and resources? In your opinion, will desalination be are main source of fresh water in 20-30 years. Any information is greatly appreciate.
1436: Do plants survive in other liquids than water?
1437: How come you don't see everything blue if your eyes are blue?
1438: Why would any type of whale would have a food shortage? Would it be because their food also migrate to different locations as well?
1439: Do different types of water affect plant growth?
1440: In which ways salt goes into the oceans?
1441: Will watery media like coffee, milk or soda allow a plant to grow and thrive as well as plain water would?
1442: How much BPA is released when plastic degrades. Can you please help me out?
1443: How fast the stream train travels?
1444: How much salt water is in the ocean, and how much fresh water is there?
1445: Are mermaids real?
1446: How and why do hydrogen and oxygen combine to form water?
1447: What is the thickness of different eggs?
1448: Do people have better visual or auditory memory?
1449: How bad can acetone nail polish remover affect your body, and what will it do?
1450: Which is the hottest desert in the world?
1451: Scientifically, what happens to a person when she/he dies, where does she/he go?
1452: What pops faster, cold water or hot water?
1453: How does soil temperature affect root growth?

Dear UCSB Researchers, I am an 8th grade student hoping to research methods of resisting bordetella pertussis disease. I was thinking that if there was a vaccine that would increase the growth of cilia on our ciliated epithelial cells in our respiratory system, then we would be more protected from whooping cough. Would you think this could be a good hypothesis? "If our epithelial cells in our respiratory system produce continuous amounts of cilia, then our bodies will be more protected from bordetella pertussis." I see two possible questions to study:

1. Is there a chemical that can grow more cilia on lung cells?


2. What can I use as a safe substitute that is just like bordetella pertussis?

I think that pertussis is too dangerous to use as a bacterium, so what would you recommend as a substitute? Also, how could I grow these cells at my home without a lab? Is there a way I can grow more cilia on cells? How could I actually measure how many cilia are present (would I take a picture and count)? Thank you! From an 8th grade scientist.

1455: We did an experiment in class with colored water and celery. The celery was cut all the same length but they were different parts of the stem and some sucked the color faster than others. Why?
1456: My science fair project is Does the temperature of the ocean water affect how much Bisphenol A is found in the ocean water? I was wondering how do you measure Bisphenol A in the ocean water? Do I have to use a chemical or a machine?
1457: How do I measure Happiness indirectly and reliably, using a survey?
1458: Why is oxygenated water important to plants, and if it is necessary then, what function does it perform in the plant?
1459: How many tornadoes do we have every year?
1460: What protects lysosomes from their digestible enzymes?
1461: How did dolphins evolve from dogs that lived by the ocean?
1462: Why is that when cells from a multicellular organism falls off it dies? When I look at unicellular and multicellular cells they look some what alike.
1463: Hi,
At school we are trying to figure out why do bubbles happen when the water boil? If you could email us back and tell us what happens, that would be awesome. Thanks!

1464: Will a human body explode in space if sent without helmet in space? According to me, internal pressure will be very high and there will be nothing to balance it so it must explode. If no, then why?
1465: How do animals help plants?
1466: Why do we use nuclear energy?
1467: What is the softest metal?
1468: Does the cycles of the moon affect water evaporation?
1469: Does a relationship exist between a person's eye color and his/her ability to identify colors in dim light?
1470: Does holding a mirror in front of a fish change what it does?
1471: Why do we use nuclear energy? What are some constructive examples of nuclear energy? What are destructive properties of nuclear energy?
1472: How far away is Earth from Saturn?
1473: What do Meerkats need to survive?
1474: How do people with 4 cones in their eyes see color differently than most people who have three cones? Why do they see so many more colors? How do cones work?
1475: Why does Jupiter have a red spot?

I read an article attempting to explain why viruses attack cells. The argument mentioned by the author hinges around the idea that a virus is genetically programmed to attack cells. We already know that. What is missing is how this viral genetic code was written in the first place. This is not a philosophical question!

The point is as follows: evolution is an ongoing biological process and different life forms are different form one another. Having said that, it is not clear how the genetic make-up of a virus can be designed in order to successfully attack cells. Consider the differences between a bacteriophage and the Human Immunodeficiency Virus (HIV). Clearly, they have different structural properties that allow them to successfully invade the corresponding targets. Why? How did it happen? What are the fundamental mechanisms underlying viruses, i.e., design and build a virus that will be able to infect the following cell? Scientific answers are required to tackle these hard questions.

1477: My Question is: How much oxygen will land based microorganisms convert in a Mars like atmosphere? I need help getting the tools for this experiment. Is there somebody who could help me?
1478: Why does Mitochondria provide energy for the cell?
1479: I am doing a science fair project over the amounts of BPA found in soda. I was wonder if it is possible to test BPA in soda and how do I measure this? Do I need to use a machine to calculate this and where would I get access to one?
1480: How does Photosynthesis affect other organisms?
1481: How the owl camouflage to survive?
1482: Do you know how climate change accurs and why it happens? Do you know what wwf-international is doing about it?
1483: How does centrifugal force work?
1484: How does magnetism work?

I 'm aware when plants are not in the light they respire just as we do. I also know the products of photosynthesis are sugar and oxygen. My questions are:
How do plants get energy when they are in the light if photosynthesis produces no ATP? Do plants always have to respire with the sugar produced from photosynthesis? Or is there some energy made from photosynthesis and if so in what form?

1486: Do twins have the same DNA?
1487: What are enzymes and how are they important to living things?
1488: What happens after people die?
1489: If a submarine was traveling underwater when a tsunami hit, would that submarine be effected in any way? If so, what can happen?
1490: Batrachotoxins, or frog toxins that are found in the genus phyllobates of poison dart frogs, have been identified in the diet of the frogs rather than being self-synthesized. I was wondering since the discovery that beetles from the family merylidae were known to contain the batrachotoxin ingredients, how did the beetles obtain the necessary parts for batrachotoxin synthesis, since these beetles cannot make the toxin themselves? Has a plant source been identified that makes the alkaloids for beetles to consume, and if so, how do plants make batrachotoxin in the first place? Thank you.
1491: How do leopards get their spots?
1492: Can you help me with Science projects ideas?
1493: What is Buoyancy?
1494: I have a question on my big campus (San Diego campus)that says "there is something in the leaves that uses this energy to break apart the hydrogen and oxygen atoms. "This energy" relating to light energy. Can someone help me to know what is the "something"?
1495: How is it possible that the continents will come back together even the tectonic plates are together? I have heard of divergent boundaries in the ocean and on land, and subduction, and even how mountains are formed, so how does it work?
1496: How old is Earth?
1497: What is embryonic development?
1498: What is tin foil made out of?
1499: Why does green not absorb red, but red absorbs green?
1500: What happens to trees and plants when they lose their leaves?
1501: How can I get electricity started with just a battery, two wires, and a light bulb?
1502: What are the long and short term effects of a volcano blast?
1503: Why is inner core in Earth solid though it has a higher temperature than the liquid outer core?
1504: What is the difference between chlorophyll A and B?
1505: How do geologist estimate the thickness and temperature of the layers of the earth?
1506: Why are colors the color that they are?
1507: I was told that slaves found their way North by looking for moss on the North side of trees. If this is true, and how does it work with the moss and the North of the trees?
1508: Does Pluto have an atmosphere?
1509: Does the color of your eyes change how you see colors in dim lighting? And how does it work?
1510: Does adding food coloring affect a plant's growth?
1511: If we were to discover a living dinosaur could we use it as a template to clone more, and to fill in the gaps in the DNA?
1512: Do any of the UCSB scientists believe in creation instead of evolution?
1513: How would an ecosystem comprising of grass land be effected if all carnivores were removed?
1514: How does different surfaces affect the preservation of finger prints?
1515: Is there time travel in space?
1516: I am doing my science fair project and I am getting very different results. I am doing an experiment on how different color lights affect plant growth. According to lots of research, the plants under the red and blue lights should be growing the tallest, but my results are turning out that the plant under the green light is growing the tallest (I have done it twice). Can I please get some help in this?
1517: What would you need to survive on Venus?
1518: How long are pandas supposed to live?
1519: How people can drink ocean water, but animals like fish can not; and how can fish breath ocean water and drinking it is not healthy for those animals which live in bad ocean waters? PLEASE WRITE BACK, thank you, love.
1520: Can you tell time without a clock or watch?
1521: The ice on the North and South Pole appears to be melting, and this appears to be from burning fossil fuels. nComparing continuing to burn fossil fuels with suddenly switching to solar roofs and bicycling and walking and not flying in airplanes, what would be the difference in future world temperatures, and how would this affect world food supplies?

I have some questions for my Science project:

1. What are the basics in mice vision? Color? Range?
2. What is the average life cycle of a domesticated mouse?
3. How many mice are born in one litter?
4. What are the basic care instructions for mice new born?
5. What do mice eat in the wild vs. what we feed them as pets?
Thank you so much for your time!

1523: We were looking at the composition of elements in the universe and saw that it is 75% Hydrogen, 23% Helium, 1% Oxygen, and 1% everything else. Why is there so much Oxygen in the universe compared to the other elements?
1524: How far is the very first satellite launched into space?
1525: Where do plants grow bigger, in soil or in water?
1526: A cell knows what to do because it is programed to do what it do. But, what or who programed the cell or any other unconsciousness life to know what to do? I mean, how the atoms of the first living thing know how to be arranged to construct this programed "machine"?!
1527: If the moon draws the ocean towards it and causes high tides, why is there a low tide when I can see the moon overhead?
1528: What factors affect great white migration patterns? Does it have to do with following their food or is it the weather?
1529: Do Unicorns and Pegasus exist?
1530: How many galaxies are there in the Universe?
1531: How do microwaves work?
1532: How is magnetization measured? Is the Earth slowly losing its magnetization due to its composition, the heat of the sun, or both?
1533: How did the moon form and what is our evidence of it?
1534: Does aluminum foil help ice melt faster with direct sunlight?
1535: Why is the atmosphere of Venus more friendly to plants than humans?
1536: Thank you for your time. I live in Mexicali, Mexico. The temperature here goes from 30F to 70F in Winter, and from 80F to 124F in Summer. I want to install solar cells in my backyard, how does temperature affect the production of electricity?
1537: How do stain removers work? (1)
1538: How does a sneak put venom in your body?
1539: Are gorillas our (Humans) Ancestors?
1540: How were sound waves used to figure out the Geology of the Earth?
1541: How does speed and motion affect the rocket balloon experiment?

In the beginning of this experiment, I hypothesized that Classical music would lower the heart rate and blood pressure by releasing greater amounts of Serotonin into the bloodstream. I also hypothesized that Rap, or any high-temped music, raises norepinephrine levels.

My studies have shown that this is true, but not in every case. 50% of my subjects’ blood pressure rose while listening to rap, but the other half did not, instead staying neutral e or even lowering. 75% of the subjects’ blood pressure decreased with Classical music, but the effects were not as drastic. 50% of the subjects enjoyed rap, which is probably the cause of the lowered blood pressure. 50% enjoyed classical music, or knew the song, which is why their blood pressure lowered. The heart rates of all the subjects made no pattern during this experiment, except after the classical music was played. In conclusion to my experiment, I realized that whichever genre of music you enjoy lowers the blood pressure, not due to the rhythm.

Can you relate to my conclusion? Do you think it is accurate? Thank you so much!

1543: How can I become a scientist?
1544: What is the approximated distance that the earth is approaching the sun each day, week, month, year or other method of measurement used scientifically?
1545: Why is global warming so confusing?
1546: How well can scientists predict earthquakes? What are some of the different ways to make these predictions?
1547: In the future, could people go in a machine into a volcano and go all of the way down to the mantle?

Hi sorry to bother you, I am contacting you after reading this article on your site:

click here

I was hoping that you would able to answer a few quick questions I have about a project I am thinking about doing for the BT young scientist.

1) Do different spectra of light effect the growth of plants differently? (Ignoring green)

2) Do specific combinations of light i.e. red, yellow and blue of an equal intensity to solar light effect plants' growth?

3)Does the effectiveness of the light on photosynthesis vary throughout the day? If so do different spectra affect this?

The above questions are to aid in setting a baseline for experiments, as I haven't been able to find any definitive proof online.

Thank you for your time,
1549: Who named the layers of the earth?
1550: How old is the oldest water on earth?
1551: How long does it take for snails to have babies?
1552: How does Transpiration work?
1553: If someone's body gets a DNA mutation, what could be symptoms that happen to them or the cell?
1554: Why does the appendix cause illnesses?
1555: What's the difference between bacteria and virus?
1556: What does each dark, long line on the spring scale represent? And what do the lighter smaller lines on a spring scale represent?
1557: What exactly happens during meiosis?
1558: Why are there no snakes in Hawaii?
1559: What kind of plants take up a lot of water?
1560: How does hand sanitizer kill germs?
1561: In the future, how do you think we will "protect" ourselves from global warming?
1562: Can babies in two different sacs be born at different times?
1563: What happens (the physics behind) when a balloon filled with hydrogen gas floats?
1564: How many solar systems are in the milky way galaxy?
1565: Why do scientists believe that the earth developed in layers?
1566: What color is blood without oxygen in our body?
1567: Which layer of the Earth is the most dense?
1568: How much salt do we need in water to make an egg float?
1569: Why do rubber bands stretch?
1570: What is the scientific name for kneecap and fingers?
1571: Which are the smallest green plants? What is their size? Are they easily grown?
1572: How will the next Pangaea look like?
1573: Why does hot water make steam but cold water does not?
1574: A few of my classmates and I are preparing a demonstration lab for our college chemistry class. We want to do the “carbon snake” where nitro aniline and sulfuric acid is heated to 392 degrees Fahrenheit but we can’t find how to properly dispose of the tower that is formed. We know that the gases formed can go out the fume hood but don’t know about the remains. Our teacher won’t let use preform the experiment unless we get answers. Thanks

Much of science fascinates me and I find that the more I learn, the better I understand the world around us. One of my main interests was herpetology and having observed different lizards in the wild as well as consulting various knowledgeable people in the field it has in fact brought me to ask a few questions about humans and why we do what we do. I am currently studying psychology. With slight variations within a species having created a sub-species it begged the question about humans and namely racial variations. On researching it on the internet it brought me to your website and namely this one:

click here

Does this imply that there are indeed sub-species of Homo sapiens? If so; what are they? Are there any scholarly articles about this subject?

If you could point me in the right direction, I would appreciate it.

Kind regards,
1576: I recently read the Planiverse. Would a 2D dimensional universe be possible? And would there be any way for us to see/visit it?
1577: I understand that Euglena's have chlorophyll and chloroplasts, but how EXACTLY are they able to photosynthesize and be an animal at the same time? And, if they evolved would they most likely lose the plant part, animal part, or keep both and become the first intelligent animal/plant creature?
1578: What is the difference between the lasers used in supermarket scanners and those used in laser pens?
1579: Why do we need nuclear energy?
1580: Compared to several decades ago, do you think the Internet has changed people's lives?
1581: Is there any real life on Mars?
1582: Can insects spread plant seeds?
1583: Is a seed living or non-living?
1584: If water is made up of hydrogen and oxygen, two gasses, then how is it a liquid?
1585: How did cats become their size?(How and where do they come from)?
1586: Is the world ever going to end?
1587: Why do people think that we evolved from monkeys?
1588: DPA was recently removed from sandwich bags. Why? Did they do something to the food inside?
1589: Hope you are fine, I am confused about the nature of life, the main point is that if the first organism on earth is Bacteria, then where the organism (Bacteria) came from? How did it come to exist on earth?
Please help me. Thanks,

1590: Why do cold objects emit vapor as hot objects do?
1591: Why is there nuclear force? What is the physics behind it? I read somewhere this is due to the repulsion between protons.
1592: I'm really confused... when I was born I had black eyes. After a few months they started to turn in chocolate brown. As time passed by they turned in clear blue color. And now that I am 14 they're changing again but this time into green. I just want to know what is happening to me. I'll appreciate so much if you guys would give me an answer. Thank you.
1593: Why does the far side of the moon never face Earth?
1594: Hi, I am a freshman in high-school and I was wondering if magnets can cause any long term affects like cancer or some other type of disease. I would like to hear back. Thank you for your time.
1595: Why is sound so important?
1596: What is the difference between the lithosphere and the asthenosphere?
1597: Where have humans explored in space, and what are the details to what they have found? Thank you very much!
1598: Does blue color absorb heat?
1599: What makes the soda cool faster?
1600: What are Canadian Lynx migration habits?
1601: Why is salamander's skin poisonous?
1602: Where does the water in our oceans come from?
1603: How much water does a paper towel like Bounty brand absorb?
1604: How do dogs find their way back when they get lost hundreds of miles from home?
1605: What did T Rex eat?
1606: Do birds urinate?
1607: What causes change in geological trenches?

Do chromosomes make up DNA or contain DNA? If it does contain DNA, how does 46 chromosomes make up the 220 different somatic cells with different functions?
46 =/= 220, because doesn't each different somatic cell have different DNA(double helix)?
How does this work?

1609: Can you engineer viruses that attack harmful bacteria in the same way that HIV attacks T Cells?
1610: Is mount Everest experiencing uplift and erosion or just erosion?
1611: In the late 1960 early 1970's in the United States I was taught that there were 6 continents, combining Asia and Europe to make Euroasia. My students think that could not have been in the US curriculum. My question, did the US ever teach the 6 continent model were we included Europe and Asia as one?
1612: Why does the area of the Bermuda triangle have more storms? Is this related to magnetic anomalies?
1613: Dear UCSB, In my science class we we're discussing a topic of hurricanes and I asked a question about Hurricane Sandy and my teacher didn't know the answer. So here my question: How much water does an average hurricane pick up? Thanks
1614: Do contracting objects show red shift?
1615: Why do salamanders need their skin for protection?
1616: My friend refuses to believe that the earth rotates around the sun because all he believes in is religion , he refuses to believe any logic. What is the easiest way to prove to him that the earth rotates around the sun and not the other way around?

After reading your article:"Why is it that water freezes on the surface of a lake but not below it?" here I found this very interesting and gave me one more question which should be interesting to others too, I hope.

Question: If warmer water was to be sent from lower down, where it is warmer, to the surface in the form of agitated turbulence, so the water is moving, would this stop the ice forming, so long as the volume of water was great enough to keep ahead of the cold air?

I'm looking at ways to keep breathing holes open for mammals trapped beneath ice during mid winter freezes after seeing the movie "Big Miracle." I'm sure there must be a better way of keeping the ice from freezing up. Even an outboard motor should work better. So far I have thought of lowering a grid of pipes down low and pumping air through the pipes which are full of small holes. The thought was that the air bubbles would bring warmer water to the surface and therefore keep the ice from freezing over. I still haven't been able to find out if the water is warmer at the bottom or half way up yet. I also thought about vertical pipes suspended in the water, going down deep and ending about 10 feet below the surface to insulate the water on its way up but whales and Orcas are likely to break the pipes and hurt themselves. Maybe soft pipes would work? I'm not in the areas you normally answer questions for, I'm in New Zealand, but if someone has time to give me some advice I would really appreciate it, so will the whales who get trapped and die.

1618: How do earthquakes have anything to do with why tsunamis happen?
1619: How do seals mate?
1620: Does the length of a bat affect how far a baseball will travel?
1621: What is juvenile hormone?Is there a difference between pupa and cocoon? If yes, what is the difference?
1622: Why and how do crystals form?
1623: How does the sun heat the Earth?
1624: How does the aftermath of wars affect the environment?
1625: Why do people with dark skin have darker eyes?
1626: When two ice cubes are kept in contact, they will attract each other, why?
1627: What is the coldest desert in the world?
1628: Why does air becomes spherical when it is injected into water?
1629: Do sea turtles have teeth?
1630: Does Pluto have any moons?
1631: When light goes through a prism, why does it exit like a rainbow?
1632: What happens inside a can of soda when it is shaken up?
1633: What can kill a Lion?
1634: In what way are oxygen and carbon similar? Is it their weight or the number of atoms, or density?
1635: Is there a crop that tobacco companies can take over and make just as much money?
1636: Why are branches formed from trees? Why don't trees just grow straight up? Why produce leaves off the branches, and leaves that only grow off branches? Is the tree trunk a giant branch from the seed? Are roots just more branches?
1637: What is inside a magnet?
1638: Does ice melt faster in saltwater or in freshwater?
1639: Do volcanoes pattern coincide with other geologic events?
1640: What kind of snails can be eaten by humans?
1641: It says neurons do not divide. Can we expect brain cancer due to division of neurons. Or are the brain cancer solely due to division of other cells in the brain?
1642: Hi Scienceline, My friend and I need a bit of information on Salinity in the Murray Darling Basin. How does salinity get into the Murray Darling Basin? Has the salinity rates gone higher or lower? How does the Murray River flow into the ocean? Is the poor irrigation getting worse?
1643: Who discovered x rays?
1644: Though very little water is required for photosynthesis, then why do we give so much of water to plants ?
1645: What would happen if we did not have a digestive system?
1646: What will be the state of water if we freeze further negative temperature below the ice state limit? Could it exist as liquid again or stay being solid ice?
1647: By providing artificial light during nights when the sun does not shine, will it be possible to get crops faster?
1648: When drilling stopped in 1994, the hole was over 7 miles deep (12,262 meters),(572°F), that's pretty HOT! My question is that if that's the deepest humankind has gone, 7 miles deep & Earth has continental crust of 35-40km which is 21-24 miles thick (33,796 meters). How do we know Earth's insides, like how were told in the books & by the professors that there is a mantle & a core beneath Earth's crust when we haven't gone that deep? It is easy to go deep into space because it's empty, but going deep into Earth, theirs a lot of pressure.
1649: I want to know about apex predators. Why are they so important for nature? When no one hunt them, how is their population controlled by nature?
1650: Can we kill viruses?
1651: How does Iodine kill bacteria?
1652: Can you tell me why the atmosphere is important?
1653: How can energy be generated by nuclear fusion or the opposite of fusion?
1654: Why does the mass of a particle changes when its speed changes?
1655: Are viruses living, once living, or never living?
1656: Are snails scavengers?
1657: When was first dinosaur fossil discovered?
1658: Does the material the container is made of affect its ability to retain heat?
1659: Why is diamond harder than coal if they are both made up of carbon?
1660: All life needs some chloride so it would make sense that plants use chloride. The chloride in sweat evaporates with the water. Do plants obtain this chloride from water that has chloride in it due to chloride secretions such as in sweat, or is there a separate chloride cycle?
1661: What is the percentage of the earth's salt water?
1662: What are some efficient ways to prevent apples rotting?
1663: I put 8 oz. of water in a cup and added enough ice to make it 12 oz. When the ice melted it was still 12 oz. So if the polar ices melted, would it not cause flooding because it is all the same volume?
1664: Why is Mars a red planet?
1665: Are plant cells rectangular or circular? I get confused on them. They aren't hard to understand, but they ARE definitely confusing. Thank You all who answer my question. Love sent out to all.
1666: Is there any particle faster than light? if so, what is it? Is neutrino faster than light?
1667: Why is an atom electrically neutral?
1668: Why humans do not have tail?
1669: Are humans and animals the same?
1670: Hi, I have been doing a project about what would happen if you switch one species brain to a different, example (human to frog), and what part of the body makes you grow?
1671: Why do we go through puberty?
1672: How earthquakes' waves provide information about the interior of the earth?
1673: Why is it colder at a higher altitude when technically it is closer to the sun?
1674: We all know that plants do respiration at night and give CO2 at night, but in the morning when they have just started photosynthesis and giving oxygen we go on a morning walk and we say that we are taking oxygen in the morning!Is not the concentration of CO2 going to be higher in the morning!!?
1675: How fast can a rocket go?
1676: Why do we have hair?
1677: Which human cell is the most important?
1678: Please help me and explain briefly on the burning of a candle, what is the chemical reaction involved?
1679: Does a ferret see color?
1680: Do silk worms eat all types of mulberry tree leaves?
1681: Herbivorous animals are the same but their excreta are different, why?
1682: Why a lizard's tail grows back?
1683: What is the size of the Sun?
1684: What is the total charge on any atom?
1685: Where does carbon dioxide come from?
1686: Is it possible that a fossil could make its way from South America to Australia, and only be found in those countries?
1687: Is light matter?
1688: Does eye color affect a person's ability to identify color in low light?
1689: What is Life Science?
1690: Why is weather important in people's lives?
1691: How are stars aligned?
1692: Why is it necessary for an electric current to produce a magnetic field?
1693: Is it safe to eat snow or drink it melt?
1694: How additives like antifreeze stop car radiators from freezing?
1695: What is a chloroplast in a cell?
1696: If plants absorb sunlight and we eat plants or other organisms who eat plants, does that mean we have a fraction of the energy of the sun in our system?
1697: Dear Scientists,
We all know that skin types were best suited for people in their own natural habitat and countries, what would be the Fitzpatrick skin type best for Toulouse, France and Aix en Provence, France. Is it skin type II or Skin type III or which Fitzpatrick type? Thank you

1698: I am aware of how the process of parthenogenesis occurs, however I wanted to ask whether it is theoretically possible to stimulate/program the reproductive cells of other organisms to perform this process, and how it would be done.
1699: Do different colors of sponges absorb different amounts of water?
1700: Is Earth's core as hot as the surface of the sun?
1701: Which is the simplest way of explaining Science to me?
1702: I've seen different drawings of human cells. They use different colors to show the different parts of the cell. My question is, what is the actual color of the inside of a cell?
1703: What would happen if a comet hits Earth?
1704: Why water level does not change when salt is added?
1705: How much energy of the phytoplankton is given off when eaten?
1706: What is the highest frequency that most humans can hear?
1707: How does the type of fabric affect the ability to insulate?
1708: I'm doing a science project for San Marcos High School. My question is "How does exercise affect memory? Thank you.
1709: I was wondering if there are billions of stars in the galaxy and we are inside of it, why do we see dark nights? Wouldn't the space always be bright? Thanks
1710: Do all living things reproduce?
1711: Are tears a waste product?
1712: What is the Shape of Our Universe, and where is it situated? I would also like to know what is there outside the Universe?
1713: Why are skin cells undergoing mitosis continuously?
1714: Can you explain to me what an independent variable is?
1715: How tall was Mt. Everest before wind erosion and water erosion happened?
1716: What would happen if the earth had no photosynthesis?
1717: What is the main pigment in plants?
1718: Why does tides occur on seas and oceans but not on ponds and lakes?
1719: Does the ocean have land on all sides?
1720: Why plants cannot move from place to place?
1721: We put colored water in a cup and it changed the color of the celery sticks in the water. When we watered a plant in soil for 2 weeks with the same colored water the white flower did not change color. Why did It not change like the celery did?
1722: Do earthquakes cause floods?
1723: How does heat come in the atmosphere?
1724: How thin is a eggshell?
1725: How did salt get into the ocean?
1726: What is the Ebola virus and should I be afraid?
1727: How is metamorphosis different from the development of baby mammals?
1728: How can there be gravitational pull in space but no gravity?
1729: What will happen if people want to visit Earth's crust, will they die because it is so hot or is it just really dangerous? What will also happen if you die right in the middle of the crust?
1730: What evidence shows that there has been a continental drift?
1731: How do rocks form?
1732: When can we find gill slits on tadpoles?
1733: Does a plant cell work with other cells to be able to function?
1734: If light is matter, wouldn't that mean that dark rooms contain less matter than light rooms?
1735: What is the greatest challenge that ocean fish face in salt water?
1736: What season do caterpillars grow the fastest?
1737: Molecules of gas strike with each other. Can they produce spark flame due to collision?
1738: Why do we need salt in the ocean?
1739: What is the easiest way to distinguish a type of dinosaur?
1740: In a water molecule, why do the lone pairs take up positions above oxygen? Couldn't they take up positions on both sides of oxygen?
1741: How is lumber related to the process of photosynthesis?
1742: Does our solar system have a name? All we say is "sun system".
1743: What can we do (in terms of temperature sugar,liquids) to help yeast produce more carbon dioxide?
1744: What liquid could produce more Carbon dioxide with yeast?
1745: What is the best type of sugar to use to make yeast and water produce carbon dioxide? And how much? What is the best temperature for the water to be? How much do I shake the flask for?
1746: How does the sun help the plants grow? How does the sun help humans? How does the sun help the solar energy?
1747: How does the level of light affect the rate of photosynthesis?
1748: What is the main causer for the cyclones occurring over US?
1749: Why does the water condense after evaporating?
1750: Hi, I am doing a science report and I need some help. I keep looking at website but none of them are on liquid conductivity. I came across this website and I am wondering if you had any information about liquid conductivity. If you do, thank you. Thanks,
1751: I have a spider that I think is brown recluse, can you help me identify it?
1752: Say all of the plants on Earth were to die off tomorrow, what could be some possible causes and could humans survive it?
1753: How does the sun warm the earth ?
1754: What is the border between the outer core and inner core and how many kilometers is it beneath the crust?
1755: Why will Tungsten glow brighter than Nichrome though? I don't understand.
1756: What is a symbol for lithium?
1757: What kind of paper absorbs more heat? What color paper absorbs the most heat? Does paper absorb heat under a light bulb?
1758: Are the lungs and blowhole connected?
1759: If hearing loss is "cured" and the cochlea is restored, will tinnitus go away? Will tinnitus be eliminated permanently? How would the brain know to stop making the ring noise?
1760: If everything in the universe is made of atoms, why does everything look and fell so different?
1761: what happens during lightning?
1762: Where does lightning come from?
1763: How do scientists determine the age of rock layers and fossils?
1764: My son Max is investigating which materials are the best conductors. He built a circuit with a 6V battery and a light bulb, hoping to distinguish which materials are the best conductors by the brightness of the light bulb. The experiment worked, but the results were not satisfactory to Max. The ligh bulb was either on or off, and it was difficult to tell if one material was better than the other. He asked if there was a way to measure the conductivity of materials with another instrument. I purchased a multimeter from Radio Shack hoping to measure the conductivity/resistance of the materials. However, I am not sure I am properly operating the instrument. We removed the test material from the circuit and set the multimeter to the OHMS setting. The results for the metals (copper, aluminum foil, a nickel, and a penny) bounce all over the place and often end at zero, and the non-conductors do not show any change on the screen so the end result is also zero.I would really like to help Max find more specific results, but I am not sure what else to do. Is there a particular bulb that would show more variety in the intensity? He has shown such a curiosity about this. I sincerely hope there is a way to help him! Thank you for your time. Max's mom.
1765: I have children in Grades P-2. One of my young students asked me if the earth is round because of gravity, how come the other planets are round that have no gravity - I tried to explain the mass and gases idea to them and they looked at me as if I was from another planet. How do I explain the reasons planets are round in simple terms they will understand. Please keep in mind these are 4-6 years old children.
1766: Why can't an exact electron location be determined?
1767: What are mice used for experiments?
1768: How was our Earth made?
1769: How the earth spins on its axis and keeps a steady orbit around the sun?
1770: Can magnetic fields pass through glass?
1771: I color is just certain light reflecting off a certain object(example: if something is orange, it reflects "orange" light), then is there really any color? Would the question be not "What Color is it?" but "What Type of light is being reflected?"
1772: Is potassium poisonous/hazardous?
1773: How do dogs hear better than humans?
1774: How does moss grow?
1775: How many people are on earth?
1776: What planets have Oxygen in their atmospheres other than Earth?
1777: Why does baking occur?
1778: Is it possible to take electricity from lightning?
1779: What is watershed?
1780: How does light travel? Why is it not stationary?
1781: How long does it take for a rocket to get into space?
1782: Were whales land animals?
1783: How does a TV remote control work?
1784: Do bats hibernate?
1785: How many kinds of cells are there?
1786: Why does the ocean seem to rise at night time?
1787: What are the things that cause cancer? Why does cancer have to exist? Will there ever be a way to get rid of cancer for ever?
1788: Why hot air rise, and cold air does stay at the bottom?
1789: What happens on a molecular level inside a balloon as it inflates?
1790: How do boats float on water when they are so heavy?
1791: What is the difference between genotype and phenotype?
1792: I know that chloroplasts require proteins coded for by the nucleus to reproduce. However, if chloroplasts were placed in a solution that had those proteins could they reproduce outside of a cell?
1793: Is there any blue blood in our bodies at any time? Or is it all red with different shades?
1794: Why do crystals form in water? What do you do in your lab with others? Me and my dad are interested in what you do.
1795: Is our sun really a star?
1796: I am curious on how a toothpaste whitens teeth. I would like to make a science project on which brand of toothpaste is effective on whitening teeth? But what should I use and do create my project? And what is in the toothpaste that makes the teeth whiter?
1797: What instrument did you use to gather information about stars?
1798: How does a pendulum clock work?
1799: Are there really Aliens from outer space?
1800: Would a black hole be able to eat an object many times bigger than its own mass? If not, what would the reaction be?
1801: What would the reaction be if a black hole crossed paths with another black hole of the same size?
1802: What happens when a plant does not get enough water?
1803: What materials do they use to get salt?
1804: Do birds help plants grow?
1805: Can you explain how lightning occurs in a simple way so that I can understand it?
1806: What type of material keeps liquids hot for longer time?
1807: Why does the inner core is solid state though the temperature is very high?
1808: Hi, I am Ahsley,an I wanted to ask you that are real scientists this question. Why is it that people say do not wear black in summer? Please reply back, it is for my science experiment and I am putting all my effort to at least get second place, thank you.
1809: What powers a battery? What is inside it?
1810: What things do people make out off nuclear energy?
1811: What are the predictions of earth's climate in the future?
1812: Can I have the purpose of the science project? "how salty does the sea have to be for a egg to float"?
1813: Hello, People evolved and selected by the genes which adapted to the environment that are favor to them. So, for example, people who live at the higher latitude area have lighter skin color, and vise verse, people live near the equator have darker skins for the ultra-violate protection reason. If a white couple (their grandpa and grandma and the past generations are all white) move to somewhere near equator, and then the generations past on (and all of their offspring mate with pure white people), will their skin color change because of any environment reason? Thank you so much for taking time to answer this!
1814: When and where are lasers used?
1815: Why do we have Tissues in our body? Why do tissues that work together form organs?
1816: How were the bones preserved from the La Brea tar pits?
1817: Hello. I am 9 years old. I did a test to see which would freeze first, ocean, tap or pool water. I did it twice and both times the ocean water froze first. It isn't suppose to. Can you help me answer why this happened? I used 8 oz of each water and put them in plastic water bottles. I checked on them every 30 min. I noticed the the ocean water got thick and slushy. It formed a top layer of ice then it seemed to freeze from inside out. The pool and tap water froze from the top down first then the sides and bottom started to freeze. My science fair is coming up and I can't explain why this happened. Thank you!
1818: Do plant cells and animal cells look the same and why?
1819: Can colored light affect the way plants grow?
1820: What type of cells do the examination of the cell's cycle? (Qué tipos de células examinan el ciclo de célula?)
1821: How different is the sky in the morning and the sky at night? Why we can not see the stars in the morning or in the day?
1822: How does gravity work? How does gravity keep things on the ground? And how does it keep planets in orbit?
1823: How do plants interact with their environment? Please give me an answer.
1824: Why are whales mammals and not fish?
1825: How does the peacock flounder change color?
1826: We did an experiment where we put one iron nail in bottled water and another in aquarium salt water made using bottled water. We left each for 2 weeks then filtered each using filter paper and took weights. We expected more rust in the salt water and that the weight would be greater. However the weight was greater in the bottled water than the salt water. Any ideas about why? My guess is that perhaps the nail was treated in some way not to react as much to saltwater.
1827: I've heard that Fluoride is bad for people and animals; fluoride can kill us. So why is there Fluoride in toothpastes like "Colgate" and "Sensodine"? Why is Chlorine not? Why have Scientists approved Toothpaste with Fluoride in it? Is fluoride good for a person's teeth?
1828: What is more comparable to stomach acid, lemon juice or vinegar?
1829: My group and I are doing a science project about which angle receives the most solar power and we would like some information about what you guys know and if you have anything please contact me and any detail would be fine thank you.
1830: If a tree has no leaves, how will the tree get sunlight?
1831: What is the earth's lithosphere made of?
1832: Does Euglena not have a cell wall?
1833: How would the air move over the earth's surface if the earth did not spin on its axis?
1834: What happens if a hole is dug through the diameter of the earth and a stone is dropped on it?
1835: How can the geometrical composition of a spider cobweb be effective enough to trap insects?
1836: How does space never end?
1837: Why are specialized cells needed in the human body?
1838: Helium, Argon and Neon are all noble gases. They all have identical k values, that is, the specific heat value at constant pressure divided by the specific heat value at constant temperature (Cp/Cv) is the same. Would these gases be expected to behave the same in scientific experiments?Thank you.
1839: What makes ice melt?
1840: Why does the Earth rotate on an axis?
1841: In what parts of plants are seeds formed? In leaves and roots? In cones and leaves? In stems and flowers? In flowers and cones?
1842: What is the difference in between a copper wire and a coil wire when considering magnetic effect of electricity?
1843: How are emeralds formed?
1844: How are plant and animal cells different?
1845: Can liquid nitrogen freeze fire?
1846: Why rigid bodies do not feel atmospheric pressure?
1847: Why the ring of Saturn is visible to us and the other outer planets like Uranus ring's is invisible to us?
1848: Why do an object move when a force is applied on it, while newton's third law says action is equal to reaction?
1849: What is found on the outside of a nucleus?
1850: How do sponges breathe?
1851: How are clams born?
1852: Can a plant stay alive without light?
1853: How does extreme weather effect climate change?
1854: Why are all of the Earth's layers circular?
1855: Why does hot air rise?
1856: What are diamonds made of?
1857: Where did the tyrannosaurus live? What did they eat? How did they get their food?
1858: How can we measure the speed of light?
1859: Why all animal eggs are in oval shape only?
1860: What would happen if earth lost its magnetic field and could it be caused by humans?
1861: How long would it take to travel one light year at one tenth the speed of light? I have been getting ten years, though I heard light years are different than other ways of measuring distance. I just need a proffessional view on this.
1862: Why are gray wolves being hunted?
1863: Why are bees going extinct?
1864: What causes global warming?
1865: How much land would be covered if the ice caps of the South Pole melted? I did not include the North Pole because I know it would not effect anything!THANKS!
1866: Can you give some information about the kingdom of fungi?
1867: Do plants with non green leaves have chlorophyll and photosynthesis?
1868: What is the temperature in the North and South Poles?
1869: Is there air on any other galaxy?
1870: How did Apollo 2 get off the moon? Doesn't rocket fuel require oxygen to work?

I am a year 7 student and I am doing a project on Gamma Radiation and I was wondering if you could please answer a few questions for me? My questions are:

When does gamma radiation occur and is gamma radiation dangerous?

What is the difference between alpha and beta particles?

1872: How does the ice on the north and south poles trigger the movement of ocean currents?
1873: Hello, I'm doing a project over chemiluminescence and glow sticks and I have some questions about them, so I was wondering if anyone could answer them!
1. What are some alternative uses for chemiluminescence instead of just producing light?
2. In what cases can the chemicals in glow sticks be harmful?
3. What causes some glow sticks to be more bright or long lasting than others?
4. How does chemiluminescence occur in living organisms?
5. Why does chemiluminescence not produce much heat?
Thank you for your time!

1874: How do plants and animals use the food produced during photosynthesis?
1875: What is the percentage of saltwater in the Atlantic Ocean?
1876: Which animals don't have blood?
1877: Hi, I was wondering what is the point of Science?
1878: I have a question for you. I read that brain cells do not replicate, but some brain stem cells are replicating. If mitochondria divide each time the brain cells divide, does this mean that only then we can have new cells? I have read that they also replicate at random at any time of the cell cycle. My question is also: if the brain mitochondria are different than the skin mitochondria because they must last much more time, does skin mitochondria last as long as brain cells?
1879: Why are people going through puberty at younger ages than they used to?
1880: Why the flowers have different colors?
1881: Hello,I am a science teacher trying to create a new project for the Next Generation standards. I need help choosing some interesting compounds.I want my students to research these compounds. There is a long list of criteria for this project, such as how the compound has properties different from its elements, how the compound is used in nature and synthetic structures, etc. I want compounds that will provide for interesting research. I am looking for at least 12 compounds. I found this list and was hoping you could help me choose the most interesting or suggest others not on the list. Thanks for your help. Here is the list:
Aluminum chloride AlCl₃
Barium iodide BaI₂
Beryllium fluoride BeF₂
Carbon dioxide CO₂
Carbon monoxide CO
Carbon tetrabromide CBr₄
Carbon tetrachloride CCl₄
Cesium chloride CsCl
Cobalt(III) fluoride CoF₃
Diarsenic pentoxide As₂O₅
Dihydrogen monoxide (most call it water!)H₂O
Dinitrogen monoxide N₂O
Dinitrogen tetroxide N₂O₄
Dinitrogen trioxide N₂O₃
Diphosphorus pentoxide P₂O₅
Gallium nitride GaN
Hydrobromic acid HBr
Hydrochloric acid HCl
Hydroiodic acid HI
Iodine trichloride ICl₃
Iron(III) oxide Fe₂O₃
Lead(II) selenide PbSe
Lithium sulfide Li₂S
Nitrogen dioxide NO₂
Nitrogen monoxide NO
Nitrogen triiodide NI₃
Phosphorus pentabromide PBr₅
Phosphorus trichloride PCl₃
Potassium phosphide K₃P
Rubidium oxide Rb₂O
Silicon dioxide SiO₂
Sodium bromide NaBr
Strontium sulfide SrS
Sulfur dioxide SO₂
Sulfur hexafluoride SF₆
Sulfur trioxide SO₃
Tetraphosphorus trisulfide P₄S₃
Tin(IV) bromide SnBr₄
Vanadium(V) oxide V₂O₅
Xenon trioxide XeO₃

1882: What rate do red blood cells die at?

1883: Why a black hole is actually black? Why light when enters into it does not bright inside?
1884: What is difference between ion and radical?
1885: 1) Why do sports players usually hurt their ligaments instead of tendons? 2) What's the difference between human cartilage and shark cartilage? If a human needed cartilage could a human use cartilage from a shark?
1886: What is life?
1887: Where does most hurricanes occur in the United States?
1888: Hello! I am teaching 6th-11th grade sciences. I have a B.S. in science, but only took a year or so of microbiology in college. Every year we have students who want to do microbe projects for science fair. We have good success growing microbes in petri dishes. As yet, my best method for measuring microbe growth is to give students a 5mm x 5mm grid which they lay on top of the petri dish and have them estimate how much of these boxes are filled with the microbe that has grown. Then they add up the portions of the boxes or whole boxes filled by the microbes and arrive at an mm squared value. One science fair judge asked about the height of microbe growth. I guess students could arrive at an estimate of height by the same method. I have done online searches which have only yielded dilution methods. We do not have any specialized equipment for observing microbes in dilution, nor do I have stains for the various microbes to show up on a microscope slide. Any websites or suggestions you can give a generalist 6th-12th grade science teacher would be very much appreciated. Thank you!
1889: Why does not all rising air form clouds?
1890: What happens to the brain when you think? Why do we need a brain to do things?
1891: Will stronger acids remove rust faster than weaker acids?
1892: What things reflect light?
1893: In an electric circuit with an ammeter, a bulb and other necessary components, when current is passed, will the bulb glow as soon as it crosses the ammeter or will it glow only after the current completes flowing through the entire circuit?
1894: I know that different colors have different wavelengths, with the color blue having a shorter wavelength than other colors. My question is: When light is reflected off the surface of the ocean, does this shorten or lengthen the wavelength of the colors in the light spectrum? Thank you so much for your time!
1895: Why do crystals grow in water?
1896: How do microorganisms enter our body?
1897: How do eubacteria obtain food?
1898: How much percentage of oxygen does a fish need?
1899: Is there an organelle which has to be colored a specific color in an animal or plant cell? If yes, which is it?
1900: How many stars are there?
1901: Water is made of 2 hydrogen atoms and 1 oxygen atom. Hydrogen peroxide is made of 2 hydrogen atoms and 2 oxygen atoms. As water and hydrogen peroxide are made of the same types of atoms, can they be considered similar substances?
1902: How big is the sun? How big is the earth? How big is Jupiter? Can you compare them?
1903: Is it correct that if a substance does not hold one of its electrons tightly, then it will conduct electricity because flowing electrons create electrical current?
1904: Does thought require language?
1905: If two balloons contain the same volume of air from our lungs, and one balloon is heated and the other is cooled, will one rise and the other drop? Why?
1906: What is the Human Body System?
1907: How does a moon rock look like?
1908: How is the plant cell different from the animal cell?
1909: I am doing a science experiment on magnets and magnetism. I was wondering: What affects magnetism? I was also wondering: What is attracted to magnets? My final question is: What makes objects attract to magnets?
1910: In alpha decay, an atom spits out two protons and two neutrons. However, if it does not lose two electrons as well, then it is no longer an atom, it is an ion. How does this work? In beta decay, an atom spits out an electron and an anti- neutrino from one of the neutrons in the nucleus, while retaining the proton from it, but if this is true, and the atom does not somehow gain two electrons, then there are two protons more than electrons and it is no longer an atom. How does this work? Also, when I was reading the answers to the other questions about the types of decay and how they work, I noticed that there was some mention of an electron cloud. What is it, and how is it scientifically valid to assume that it is really there?
1911: How can our body carry out digestive functions on a daily basis?
1912: Why is the earth round and not flat? How are volcanoes formed?
1913: What are sugar crystals made of?
1914: Why does rubbing alcohol evaporate quicker than water?
1915: Why does soil heats up faster than sand?
1916: Do Earth layers ever die?
1917: How does magma go up and explode into the air out of a volcano?
1918: Does the percentage of oxygen in air decrease when you go below sea-level?
1919: I'm doing a project for school. I was wondering if you could answer a few questions I have about stars. Why are there stars out at night? Do we use them as like night lights? Where do they go during the day? If we didn't have stars, would it change our daily life?
1920: What does reflect mean?
1921: How do Venus fly trap digest insects and does it matter what type of insect?
1922: How can balanced equations be used to calculate the volume of gases formed in chemical reactions?
1923: What would happen if there were no deserts?
1924: When did humans first start roaming the earth about how many years ago ?
1925: Is there possibly going to be a cure for Ebola, if so how long is the expected time for the cure to be released?
1926: What is an acid?
1927: What is sand made of?
1928: What happens when you put too much of the baking soda in food/bakery?
1929: How much vinegar does it take to react with baking soda?
1930: When did rocks break down from the mountains? I know rocks on the ground were from the mountain, but I want to know when did that happen?
1931: Is electricity and clouds a form of matter and why?
1932: Are stars useful why/why not?
1933: How can you change a nightmare or dream? I am very curious! I also want to control it. Please let me know!
1934: I'm having a conversation with my friends at lunch and the topic of blood pigmentation and whether it is blue when it has no oxygen or not. I showed them your website that in fact states that it is always red but may give off a blue hue. However, some of my friends do not believe that there is any way for you to scientifically prove that. So my question to you is, how do you know that blood is always red?
1935: How deep is the ocean, and how long can the average human stay under water? Which animal can hold their breath under water for the longest time?
1936: Is there some other planet with an atmosphere that we can breathe?
1937: Is it possible that there could be pyramids hidden under the sand or water?
1938: How fast do meteors travel? How far is Mars from Earth, and how fast can we get there?
1939: Are scientists working on traveling to the sun? Is it possible to visit other planets with different kinds of space suits?
1940: What are the physical and chemical reactions of gold?
1941: We are in 1st grade. We are doing an experiment. We are growing rye grass and alfalfa in the dark without any sunlight. Our classroom has no idea how it is growing. It is growing faster than the grass in the window. The grass getting sunlight is a darker green, and the one in the dark is a very light green, but it is taller. How come it is growing without sunlight? We are going to keep watering it and keep it in the dark to see what happens. Will it keep growing? Please write back or come visit us in room 8. We have lots of other stuff growing too, like a sweet potato. Thank you! P.S. Daphne helped type.
1942: Hello, I attend 7th grade at Eisenhower Middle School in Albuquerque, New Mexico. I am doing a project in which I have to use bio mimicry (mimicking nature to solve human problems) to solve a food system problem. My group and I would like to solve the problem we have that so much water is in the world, yet very little of it is fresh. We know that there have already been desalination plants invented, but they aren't very efficient. We were thinking about making a desalination plant that is based off the salt glands that can be found in many sea birds. This may be a more efficient way of taking the salt out of water. We have been doing much research over the course of the past week, but many of the articles and videos that we are trying to read are too difficult for us to understand. I was wondering if you could put in simple language the processes used by the birds to desalinate their water. Thank You!
1943: How did off shore oil-drilling get started in Santa Barbara? How is off shore oil-drilling helping the people living in Santa Barbara? Does the oil-drilling off shore go to the people living in Santa Barbara for gasoline or do they send oil over to the factories for human industries? How can my partner, Oscar, and I help with the scientists or people on the aspect of oil-drilling?
1944: What is vitamin B12 and why is it so important?
1945: How many rows of teeth does a spiny dogfish shark have? What depths do they dwell in?
1946: How are tornadoes being affected by climate change?
1947: What do snakes eat?
1948: Is it true that the brain has the mind, but the mind has no brain?
1949: I often hear this phrase, when discussing the California drought, "We are just letting the water go down into the ocean!" How does the water that goes "into the ocean" replenish our environments own water supply? What do we risk by damning the water?
1950: What will happen with the hot water in the sun when it evaporates?
1951: How is oxygen released in the air?
1952: How do flowers get their colors?
1953: Does Archaebacteria have DNA?
1954: How and where minerals form?
1955: What is the closest planet to Saturn and how far away is it?
1956: Why isn't Pluto a planet anymore for a fact I am asking?
1957: Why can't we feel the Earth move?
1958: What are Chemicals made out of and how are they made?
1959: Why don't asteroids get pulled into Earth's gravitational pole?
1960: How long does it take for Mercury to make one full orbit?
1961: How long has gravity been on earth?
1962: Why don't asteroids get pulled into Earth's gravity?
1963: What made Earth's atmosphere? Can it make more atmospheres?
1964: Does space have a floor or is it just like an endless pit? If it does have a floor then, what is it?
1965: How many asteroids are in the Solar System?
1966: Where would humans live if Earth didn't exist; and who named earth "Earth"?
1967: Does temperature change the PH of orange juice over time?
1968: Theoretically asking, what would happen if the sun were just removed? Not explode, just completely vanish. Would each planet continue a tangential orbit and become like meteors or would they change their orbits to Jupiter, knowing it has great mass. My physics class is presently talking about this sort of subject and it interest me quite a bit.
1969: Why is there a storm in Jupiter?
1970: If the core of the Earth is super hot and the mantle is liquid magma, why is the crust so much cooler?
1971: Why does a dead rat get mold after a few weeks?
1972: It seems that the universe was created by a big perfect explosion, it is also expanding in harmony to the point that it has created galaxies where billions of stars were formed. It also seems that stars created their own planets becoming solar systems. It seems that our solar system has been shaped with the right conditions in order for earth to become a green house and support life in many ways. Our plants, animals and us as a species are structured with DNA coding. Our universe is full of constants such as gravity, and speed. My question based on my observation is the following: Is the universe a computer program due to the fact that there are not coincidences other than cause and effect?
1973: How do plants use water?
1974: Approximately what percentage of the things around us are made from polymers?
1975: Including its rings which planet is bigger Jupiter or Saturn?
1976: Why does Earth have a moon and not Venus or Mars? And why Saturn has rings and not the inner planets?
1977: Why we cannot go to different galaxies?
1978: Do antiseptics contain triclosan or triclocarbon? And do they cause resistant-bacteria? Do alcohol-based sanitizers contain these compounds? What are the mechanisms of action for both antiseptics and alcohol based sanitizers as well as antibacterial agents?
1979: What are fun things you do as a scientist?
1980: What is the most abundant greenhouse gas? What are the things that produce that specific chemical? What are the things that produce the most carbon dioxide?
1981: I am doing a project on animal migration and my question is what animals migrate in the pond and where?
1982: Why are there only 8 planets in the solar system?
1983: I am doing a project for school on evaluating websites. One of the most important things for us to know is if a website is up to date. So how do I know if a website if up to date? Also is this website still active? I need to use this website for another project so please answer.
1984: An element's properties are defined by the number of protons that it has, which also has the same number of electrons. Therefore, since if an atom loses/gains neutrons it becomes an isotope, which doesn't change its properties. Therefore, my questions are: Does the proton have particles within it, sort of like DNA, that define the properties of an element? Do these particles, if they exist, have a relationship with the electron?
1985: What tests can distinguish an acid from a base ?
1986: Why do plants give off so much carbon dioxide?
1987: Why does neon glow?
1988: What is the difference between "solution" and "suspension"?
1989: If you traveled through the center of the earth, you might feel like you are falling downwards, but when you reach the surface on the other side, would you still feel like falling?
1990: Why salt will make water freeze slower than the normal water?
1991: How do plants obtain oxygen for respiration during the night?
1992: Why isn't Pluto a planet? I think that it was a star but people think that it was a planet and that you guys saw a real planet, is it true or no? I am not in school summer break.
1993: Why do geckos shed every month? My leopard gecko's name is Ann Marie and she also eats her skin after shedding.
1994: Do clouds move?
1995: NASA and the whole world is basically looking for other life on other planets within our solar system. Or, more specifically, "life as we know it." What is life as we know it? What are we looking for, and what would be defined as life that we don't know?
1996: Which organism has most chromosomes?
1997: How do computer screens work?
1998: I am a 9th grader in Souderton school District in PA. I stumbled upon your website while searching for BPA testing. I am interested in testing BPA content in receipts from several stores around my area for my 9th grade science project. I am also interested in finding out whether BPA leaches more after using hand sanitizers. I am having a hard time figuring out how to test for BPA . Is there a way I can test for BPA without using blood/urine samples ? Is it possible to test for BPA content directly on the thermal papers? Your help is deeply appreciated in this matter.
1999: Why aren't plants black? In theory, a black plant would absorb light from all wavelengths. However green plants (i.e. plants that reflect rather than absorb green) seem to have enjoyed an evolutionary advantage. According to Darwin they must have been the most fit, but what made them the most fit?
2000: Who and how discovered electricity?
2001: If you place a water balloon in a low pressure environment, will that push all of the air out of the balloon? If not, would there possibly be another way to remove the air from the filled water balloon?
2002: What do angler fish eat?
2003: What happens to the cancer when the person dies, as in lung cancer. Does the cancer stay in the body and dies along with the person, or does it leave the dead body, and then invade a new living body? Thanks,
2004: How is Pluto a star is it because it is to far away?
2005: After being outside when it is sunny, why do you see green spots when you come inside?
2006: How does aquatic, salt water plants like seaweed get the fresh water they need from their environment? It was just hard to wrap my mind around it since salt water aquatic plants somehow manage to stay alive without a source of fresh water. As well as this, I have also been wondering how a salt water fish filters salt water in order for it to be fresh? Thanks!
2007: Is there a way to get rid of the black tongue disease?
2008: Given that many modern day containers, utensils, cookwear, clothing,...are coated or composed of types of plastic which are publically recognized as having the ability to transfer\'estrogeni\' chemicals to whatever they come in contact with, is it possible that these 'estrogenic' compounds may be a contributor to decreases in fertility, neurological conditions and obesity in the population as a whole? Could this also be a contributor to a decreased sex-drive in women, given that testosterone is the 'sex-drive hormone'? Thank you for your time.
2009: Still to this day we have not discovered even half of the ocean and its inhabitants. What is the chance that there really is a megalodon or some huge prehistoric creature in hiding in the waters?
2010: Does the earth create more dirt? Why do all past civilizations have to be "dug up"?
2011: How does light move?
2012: What does a clam eat?
2013: Since all living organisms produce some kind of waste, wouldn't cancer cells produce a detectable amount of waste? Wouldn't that be an easy way to test for cancer?
2014: When you look at the sun, is their a moment when you cant see at all?
2015: I have heard that the icecaps and such are not melting and instead they have doubled in size since the last two years. Is this true? I heard that it was sponsored and they basically lied to the public and if there is any chance for us to go into another ice age, it is higher now. But not in a very very very long time. Can you explain?
2016: What covers and protects the brain?
2017: Could the regeneration process in some animals be quickened by selective breeding or cross breeding with two animals that both poses this function? Could one animal that poses the regeneration function breeding with an animal that does not have it; if so would the offspring have the function of regeneration of limbs or other body parts?
2018: If I heat 10ml of water in a soda can on a Bunsen burner until steaming and then I invert the can into ice water, is there any chemical reaction taking place in order to implode?
2019: What makes carbon atoms essential to life?
2020: Does anything else other than the moon control the tides? Does a certain life force live that controls the tides but makes it seem like the moon? Can another life force control the tides?
2021: I am in Grade 9 in Tasmania. I was just wondering if you could tell me how to distinguish water from Acid without tasting it as we are doing chemical reactions in my science class. On Thursday, we have a double science class and one of our requirements is for us to test to see which of the beakers contains water and to prove we need to test it without tasting, and touching it. If you could help me that would be great.
2022: Where does electricity start?
2023: When I raced a derby car, I was told that adding a fender for the front side of the rolling wheels would deflect the oncoming air (from the car's point of view) allowing the car to go faster. However, when I recently saw a formula for drag, I noticed a "speed of the media" component. Thinking through the speed of the wheel from the body point of view, the forward surface of the wheel above the axle is rotating into the oncoming air at faster than the forward linear motion of the car body, and the forward surface of the wheel below the axle is traveling forward at a slower rate than the body of the car (the tread touches the track). This leads me to ask: Are fenders only aerodynamically effective for shielding the forward surface of the upper half of the rolling wheel, and counterproductive for shielding the front surface of the lower half of the rolling wheel?
2024: Is chlorine important? Why?
2025: Does a whale really lay eggs or give birth?
2026: What creates Earth's magnetic field?
2027: In books it says if the earths temperature rises 3 1/2 degrees the pole ice caps would melt but how is that possible if the temperature changes more than 3 degrees all the time?
2028: What evidence is there for continental movement?
2029: Why is mass not always measured by weight?
2030: Why is any nonzero number raised to the power of zero equal to one?
2031: How does soil affect the pH of water?
2032: What triggers the cry of a baby when she/he is born, just after leaving the mother’s womb?
2033: Why do plant cells need to live?
2034: If you wanted to enjoy longer periods of daylight in the summertime would you head closer to the equator or farther from it? Why?
2035: Hi, I'm helping my young neighbor to determine what his "small fist" item is. It looks like a dark rock with a crusting on it - very hard, can't be broken open with a sledge hammer. Machine shop grinding of one edge took an extremely long time, again, very hard. very dense and heavy, very heavy, perhaps heavier than lead. Please give us some advice. What can this material be?
2036: Does an atom live forever?
2037: How can you determine the correct ratio of baking soda and vinegar?
2038: I have an element research project for Chemistry, and my chosen element is Oxygen. Which are the most important characteristics of Oxygen, according to your experience?
2039: I am doing a science fair project "Which sex develops the most bacteria on sweat molecules? Male or Female". I need to know whether or not it is possible to take a culture of sweat and then grow it on gelatin. I will appreciate some help for which are the proper parameters to use(time line, kit or no kit?, etc.) in order to do this test in the correct way. Thank you.
2040: How do scientists use earthquakes to determine what the earth's interior is made of?
2041: How does hydrogen and oxygen turn to water?
2042: What causes weather changes? Is the world a real sphere, and if so how did it get that shape?
2043: How many species have whiskers? What is the function of whiskers? How are whiskers and antennae alike?
2044: Trying to find out what happens when you put corks in fresh water and salt water?
2045: What would happen if you went into space and shot a bullet toward Earth?
2046: As a physics teacher I've always been puzzled by the movement of weather systems from west to east. Seems to me the rotation of the Earth and the low frictional drag on the atmosphere would result in a east to west movement?
2047: What is the hottest temperature ever recorded in a desert?
2048: Why do chlorophyll makes plants look green if light is not green?
2049: Were do babies come from?
2050: Is a person's fingerprint pattern related to their toe print pattern?
2051: Did dinosaur and people ever exist on earth at the same time? And if not does that mean the Bible is wrong since it says man earth and beast were made basically at the same time (7 days)? I basically believe in the evolution theory, but then where did humans come from?
2052: Are there any organisms besides humans that produce 2 eggs from the same oocyte?
2053: All over the internet you can find warnings about botulism and occasionally listeria and even legionaries disease in relation to at-home vacuum packed foods. The instructions of food-saver vacuum sealers explain that anaerobic bacteria grows at certain temperatures and in certain environments. In order to keep the food safe, Can I let my hot food cool on the counter and then vac-pack it safely? What to do?
2054: Why does baking soda react to vinegar?
2055: What is current electricity?
2056: How does liquid density affect buoyancy?
2057: How would the salinity of salt in the oceans be affected if the polar ice caps melted?
2058: Why there are oceans on Earth, but no other planets?
2059: If staminate flowers only have male reproductive organs, then how do they reproduce or make seeds?
2060: 1.How do scientists know how thick the inner core is? 2.How do scientists know what the inner core is made out of? 3. How do scientists know how hot it gets on the inside of Earth?
2061: Can a black hole die?
2062: How are black holes made?
2063: Since stomach has pH of 1, and the intestine has pH of 7, how do stomach and intestine deal with the pH difference?
2064: I have to do the science fair research and bibliography for the 4th grade. My question is: Does the flavor of ice cream affect how fast it melts? Thank you for your help.
2065: Does Jupiter have a solid core?
2066: What happens when the sun dies?
2067: How does a magnifying glass work?
2068: How do people determine how old fossils are?
2069: What makes apples brown?
2070: What are facts against Pangaea?
2071: How earth formed ?
2072: What is conduction?
2073: How is that Rutherford led to discover the nucleus?
2074: How many BASE PAIRS ( not bases, not separate nucleotides) are there in the human genome?
2075: In which layer of the Earth do we live on?
2076: How do animals get their energy?
2077: How is opal formed?
2078: What are "materials"?
2079: I'm doing a science fair project on which plastic container leaches more Bisphenol A into the food when heated and I was wondering if there was anyway for me to measure the amount of BPA in the food after it is heated. Thank you for any answers you may have.
2080: Chlorophyll makes leaves green, but what substance makes it yellow, red, and orange?
2081: Why is water called a heat reservoir?
2082: How is thermal energy used?
2083: If the supplies don't make it to Mars what would happen if the people get there and the supplies don't make it? What would the people do and why is it a one way trip?
2084: How deadly is Mars?
2085: Is it a good idea to send people to Mars?
2086: Why would people want to live on Mars?
2087: What kind of animals eats elephants? What kind of animals eats cheetahs,lions, tigers, leopards,and wild cats?
2088: Does the carbon cycle function the same during the night as it does during the day?
2089: I am researching the best material (and maybe a ranking of the different ones) used in clothing to repel stains. I also am trying to learn why they repel or resist stains best. I am having a difficult time finding this info.
2090: Why dose ice cream melt?
2091: Why don't comets hit Earth?
2092: How could you tell if a cell which was going through cytokinesis, was a plant cell or a animal cell?
2093: Is there a scientific reason we do not have tails?
2094: What are the most interesting facts about tungsten? What color is tungsten? Is tungsten at the top ten of the heaviest element? What is the atomic weight of tungsten? What is tungsten's density? Is it harmful? If you can answer at least some of my questions, I will be thankful. If you cannot reach me, sorry, I am a 5th grader who doesn't like to cause a lot of trouble. If you answer only one question, thank you. My project is a really important grade to me, so I need the correct answer. Thank you and have a blessed day. :)
2095: If I use a balance pan what physical property of the object am I measuring?
2096: Why do scientists believe the earth's outer core to be molten, or liquid metal?
2097: What is radiation?
2098: Why the ocean is clear in the tropical latitudes and more turbid, cloudy, murky off the California coast?
2099: Evidently when water turns from a liquid to a gas its volume increases 1600 times. This is was causes steam engines to work. If a person has a container where all of the moisture is taken out of it, and then water is injected into the container, when it evaporates, does the water expand 1600 times? If the container were under pressure, would the water remain liquid?
2100: We are under the impression that certain type of food is digested by a base (alkaline). Protein needs an acid to digest. The question is, does ALL food get an acid bath or does the body only dump acid when it's needed?
2101: What is Obsidian?
2102: Why is water clear in a bottle and on Google I asked what is the color of water and it said blue. My question is why is water clear in a cup?
2103: How long does it take for a sea star to regenerate a leg? Can this be done in a laboratory?
2104: How old is Mount Everest?
2105: I recently learned that the velocity of blood moving in veins is faster than that in capillaries, but the blood pressure in veins is much lower than that of any other blood vessel. Since veins have a relatively high blood velocity (at least compared to capillaries), shouldn't they also have a higher blood pressure? Why don't velocity and pressure in fluids go hand in hand?
2106: What is the largest magnet in the world?
2107: Do cells come from other cells?
2108: How can the wind help the plants and animals to reproduce?
2109: How does the angle of light affect surface temperature?
2110: I'm trying to find chemical reactions that I can compare to that of vinegar and baking soda. I want to see if I can create a better reaction. Can you provide me with any suggestions to try?
2111: How can a plane take off at the equator and fly to the North Pole? When we know the equator is moving faster than the north pole. I know part of the reason is conservation of momentum, we keep the momentum of the earth when we take off in a plane, which is why a plane traveling say 300 miles per hour can fly and get some where, even though the earth is revolving at about 1000 miles per hour at the Equator. So, relative to the earth we are only traveling 300 miles per hour. That is also the reason why when I jump in the air the earth has not moved all of a sudden a 1000 miles in the direction it is spinning.
2112: Where is the sun located in the Solar System?
2113: If photo plankton dries out does it still produce oxygen?
2114: Are hurricanes named from the letters in the alphabet?
2115: Does drinking caffeine increase your reaction time dramatically or noticeably?
2116: How long have trees been on Earth?
2117: Could a shark swallow anything without biting it?
2118: My question is what similarities do you think there are in how water and air move around Earth?
2119: By what process does waste leave cells?
2120: We had a can of mandarin oranges that was swollen and leaked brown liquid on to the pantry wall. My mom is using a bleach solution to clean the pantry shelf/wall what else should we do to make sure we don't get sick? Is there any way we can know what kind of bacteria it was for sure?
2121: If a solid has a 180g on the moon? Would it have the same weight on Earth as on the moon?
2122: What would happen to the thermohaline circulation if the Earth rotated in the opposite direction? Which would be climate changes on our planet?
2123: What accounts for the difference in density between the oceanic and continental crust?
2124: Which material absorbs the most water?
2125: What are the benefits of orange juice?
2126: Which ocean moderates the temperatures of eastern Canada?
2127: Why are skin cells undergoing mitosis continuously?
2128: How are the lithosphere and the asthenosphere similar?
2129: Why do mitochondria have its own DNA in a simplified version?
2130: How can you cause fission to common molecular structures or is it only possible with plutonium?
2131: If you were to cut up a piece of fruit, which has cells in it, would you be cutting apart molecules then too? How about atoms? And if you cut apart the atoms that make up the organelles of a cell, why don't we hear as big of an explosion as we do when we are splitting atoms up in bombs?
2132: How does mimic octopus give birth?
2133: What causes heart attacks?
2134: How does fossils influence continental drift?
2135: Hi! I have a student who is wondering approximately what percent of the air we breath out is carbon dioxide. He understands that we take in oxygen during cellular respiration and we give off mostly carbon dioxide along with some nitrogen and oxygen. But....he wants to understand what percent is carbon dioxide during an exhale. He wants to compare your answer to the answers he's getting for his own cellular respiration data he's taken for his science fair project.
2136: One of my students recently heard on NPR about how transpiration of trees in the Amazon Rain Forest directly affects the weather and climate in region. She is wondering how this occurs. Could you shed some light on this and how the climate will change as a result of deforestation in that area? Thank you!
2137: What are mineral properties?
2138: If one assumes that Tyrannids nested and produced eggs similar to Ornitholestids, how thick would a tyrannosaur egg have to be, if the female weighed 12 tons?
2139: How much salt is needed in the ocean to make brine shrimp grow?
2140: What is the thing inside reptiles that allow them to heal? What is it made out of?
2141: How does Science work?
2142: How do scientists figure out what type of dinosaur it is?
2143: What would the world be like without chlorine?
2144: How is antimatter made?
2145: Global warming is causing the melting of glaciers. Consequences of this is that sea level is increasing but it is said that rainfall is decreasing in spite of increasing due to high evaporation rate made by increasing in the temperature of sunlight reaching Earth that causes evaporation. Why is it so?
2146: What different kind of polar bears are there?
2147: I want to know about NASA. Can you tell me about it?
2148: Does one of the gas giants have any destroyed moons?
2149: If space is constantly expanding, what exists beyond its boundaries? What is space expanding into?
2150: Why do people die? And why can't we live forever?
2151: While we were working on a current of the world's oceans lab, Nathaniel came up with a question that I do not know the answer. I'm thinking this may come from more of an anthropology background and I am a geologist by nature. His question is: Why do different races of people have different eye shapes? For example: Peoples of Asian decent compared to Egyptian peoples, Mexican peoples, etc. The class started laughing because they felt that it was a "racist" thought but he was serious. I do not know if there is a scientific reason such as survival of the fittest for eye shape in northern or southern latitudes. Any help for my general science class? Thanks!
2152: What are the important facts about plastics?
2153: Who discovered baking soda and vinegar chemical reaction?
2154: In which type of rock are fossils most likely found?
2155: How does precipitation affect humans?
2156: How does oxygen get in the air?
2157: What is Heat Transfer ?
2158: How does ADP get its phosphate back to become ATP?
2159: What makes the moon uninhabitable?
2160: Do you need goggles for the baking soda and vinegar experiment?
2161: What is water made out of?
2162: If I was kicking a soccer ball on another planet in our solar system, besides gravity what other factors would impact its flight path? For example, is the drag the same? (Assuming the ball pressure remains constant. ) Where would I find estimates of planetary differences in drag? Thank you for your consideration of my question. Regards.
2163: Why is it hard to shoot a flat basket ball?
2164: What happens when you freeze fruit?
2165: How many plants do we need to test how chlorine effects plant growth and how much do we put in each plant?
2166: Hello my name is Ashton and I am doing a science project on influenza and how it is produced. Do you think that it is important to make sure that I am testing people with the flu and things they are around? Also do you have any advice for this project?
2167: Can petrified fossils form when the minerals in water make a copy of the organism?
2168: Have been elements made / discovered since 2000? How many and which are they ? Why do they have substituting names in case they don't exist?
2169: Is the sky bluer when you look straight up at it or from far away?
2170: Are there new planets out there but people don't discover them? I just wonder whats out there.
2171: What are your daily responsibilities as a scientist and what educational requirements do you have in order to become a scientist?
2172: If the sun is a star, why doesn't it explode?
2173: Why do we think the way we do? What is it in our brains that allows us to not only process information, but allows us to imagine or have emotion? Theoretically, what would separate a naturally developed brain from one 3d printed from stem cells in terms of thought?
2174: Why is Pluto so small?
2175: Will a soccer ball bounce more times on natural soccer field style cut grass or artificial turf? In our experiment, natural grass had more bounces. That surprised us. Why would natural grass be bouncier? I can't find anything explaining why that happened scientifically. There is tons of info on why balls bounce and the physics behind it, but no info on why the bounce is different. We thought artificial grass would bounce more because of the rubber. I am thinking the natural grass surface is harder so that would make the ball bounce more, but not sure how to explain that scientifically.
2176: What is the Milky Way?
2177: Why do plants need carbon dioxide?

Does hydrogen peroxide have cellular damage to Citrobacter bacteria?

I am a Water Treatment Operator and have thought about using Hydrogen Peroxide as a form of disinfection hoping that the creation of hydroxyl radicals will be what eliminates the bacteria problem I have in a water well. However, I was reading that these types of facultative bacteria also have an enzyme called "catalase" that catalyzes the reaction of hydrogen peroxide to O2 and water.

Will the catalase eventually cease its reactions and allow for the Hydrogen Peroxide to begin its cellular damage to the bacteria?

2179: What is the difference between elastic potential energy and other forms of potential energy?
2180: Does the magnetic field affect gravity?
2181: What does it cause a magnet to move an object when the magnet moves?
2182: Why is wood not considered to be alive?
2183: Why do we call earth "Earth" when from a satellites view its mostly water?
2184: How do I show that the reaction of baking soda and vinegar is the sum of its parts? This explanation needs to be easy enough for 5th graders to understand, please.
2185: Does tea and/or coffee stain your teeth?
2186: Why are cells small?
2187: I heard that when particles are accelerated to light speed (300000 km/h), then collide, it opens a warp in spacetime, like a miniature black hole. Is this true? Also, could we use this information to tell what is in a black hole?
2188: If the statement "Heat Rises" is true...then, why is the north colder than the south?
2189: Do insecticides stunt plant growth?
2190: How does the scarcity and over abundance of WATER influence or affect PHOTOSYNTHESIS?
2191: My project is "The Effects of Cold Preservation on the Vitamin C Levels Present in Bell Peppers". I understand how vitamin C oxidizes and I found that freezing bell peppers degrades the vitamin C in them. I don't understand how freezing effects the oxidation process. Can you help me understand? Thank you
2192: Are tachyons real?
2193: Is WiFi matter?
2194: What is in a Bounce sheet that we put in the dryer to reduce the static electricity?
2195: Is electricity matter? I have found many different websites that say it is, but others say that it isn't. Would you please clear this up?
2196: Why do we get heat from lights?
2197: What is a protein?
2198: Why is people's poop brown?
2199: What chemicals do explode?
2200: How can we know that something is matter or not?
2201: If a tree falls in a forest does it make sound?
2202: Why don't we collapse under the weight of the atmosphere?
2203: It is often said that we get our energy from food by breaking down the bonds in glucose molecules. How is energy 'stored' in these bonds? And what is the role of ATP in carrying energy? What, on the molecular level makes ATP so special to be called the 'energy currency'? Thank you!
2204: How can we help people from staying away from deadly chemicals?
2205: How does an electric current attract paper clips?
2206: Why sugar crystals grow in cubic form?
2207: Why does the moon have the most craters?
2208: How long does it take the sun's light to reach Earth?
2209: How did Ernest Rutherford discover the proton? What was his experiment?
2210: How do scientists know all about the earth?
2211: How would you get air in space?
2212: If objects are closer to each other, how does it effect the force of attraction/repulsion?
2213: Why human's eyes are in front and not on sides like birds?
2214: Why chromosomes differ in length ? Why one arm is shorter and one in longer (except metacentric). What is the reason for this design ?
2215: Why can mealworms eat Styrofoam?
2216: Why dose baking soda and coke react at the time?
2217: Why are some bananas green?
2218: What are all the bad gases to breath and which ones can kill you?
2219: What would happen if the universe exploded?
2220: How close or, far out is science in creating a plan to help advance the repairing of the ozone layer?
2221: Does the number of chromosomes determine the complexity of the organism?
2222: A few years ago, I witnessed a demonstration where a Flask was continuously filled from an Oxygen Bottle (Welding System) at a low flow After it was filled with the Gas a steel spatula was lower down the neck of the flask. This spatula was half filled with what I believe where carbon or graphite granules. The spatula was tapped on the inside wall of the flask and small amounts of carbon would fall to the base of the flask When tapping the side of the glass and when falling to the base of the flask, they flashed and burnt. You could continue to do this until the spatula was empty. I have tried to replicate this but to no avail. Do you know the SECRET or am I missing something Maybe the carbon had an additive? Can you give an explanation so that I can replicate this test? I need it to show our artisans the hazards of working with Oxygen (Concentrated). Hope you can help. Regards
2223: What would happen if Earth were to lose both human and animal lives, would Earth become another planet or still be Earth?
2224: Why does science matter?
2225: I'm doing a project on supercells for science class and some information I get have phrases I don't understand. For example, what is a flank line? Some websites state it's really an important part of understanding what makes supercell storms unique.
2226: I have recently found a bit of information on the Horse head Nebula. I was wondering if you know of any credible sources I could use.
2227: About how many times does DNA have to fold up to fit in a cell?
2228: How does DNA fingerprinting work? How do they do it? Thanks!
2229: What is DNA fingerprinting?
2230: How does DNA fingerprinting work?
2231: How do the brain store memory?
2232: What is a volcanic lighting and how does it happen?
2233: How does a fire rainbow sit in the sky all bunched up unlike a normal rainbow?
2234: I am doing a project on hurricanes and I need to know how tall a hurricane can be and what the biggest hurricane was?
2235: Are there any evidence against continental drift?
2236: Do heavier objects fall in less time?
2237: Hello! I'm doing a project on DNA fingerprinting for the last project of the trimester. When you studied about DNA fingerprinting, what was your favorite part? Or do you have any other interesting information? :) Thanks :)
2238: To my understanding, General Relativity allows matter to bends space-time with it's density and collection of mass. If this is the reason as to why planets orbit around stars, why don't they lose energy and fall into the strongest density point? Is there a force that prevents orbiting objects from oscillating inward, or are they already doing it at a incredibly slow rate?
2239: Can plants grow without soil?
2240: Why is the atmosphere of Venus more friendly to plant than humans?
2241: Do ghosts exist?
2242: Why do some plants survive better with little water?
2243: What are the most things that the scientists use in order to do their work?
2244: If autotrophs can make their own food, why do they have any nutritional requirements?
2245: How dose a magnet work?
2246: I am trying to find a way to collect rainwater and preserve it's pH so that it can be titrated to find the Molar concentration and then the pH. (No cheating with a pH probe :)!) I have searched and not found a direct answer to be sure that the collect rainwater does not change pH levels. I have no specialized equipment... Any suggestions? Thanks for any help you can offer!
2247: What natural elements float with buoyancy?
2248: Memory B and T cells are meant to last for a lifetime, but what happens when they are no longer needed in the body? Do they undergo Apoptosis? (Reference to the Immune System)
2249: Why should we explore Saturn?
2250: How does the study of Geology help scientists understand the function of the earth's composition?
2251: How many limbs can a starfish have before dying?
2252: Why am I black? I want to know.
2253: Where and why do plants grow better, in the darkness or in the light?
2254: Why do astronomers use astronomical units to measure distances in our solar system?
2255: What is a scientist?
2256: How does the quantity of sugar affect the time for sugar crystals to form?
2257: Why is there life on earth?
2258: Which is more dangerous, a deep earthquake or a shallow earthquake?
2259: Why do animals leave seeds behind?
2260: Did dinosaurs exist in Los Angeles?
2261: If I mix 1 part pure gold with 1,000 parts water will the water turn blood red?
2262: I recently read here that high performance military jets use kerosene for fuel due to it's higher energy density. If these planes can use kerosene, why do 'normal' jet engines use high octane jet fuel? Am I missing something? Thanks!
2263: How many wavelengths would you need to have in the photo receptors to make color vision like humans?
2264: Is the Bermuda Triangle a portal?
2265: How many senses do snails have?
2266: Please tell me specifically how the colors reflect, and absorb heat?
2267: I want to learn how snails lay eggs and what is the temperature they need, so my snail Neille can lay eggs too.
2268: If I was doing an experiment on crystallization, and I wanted to add an acid to cause the sucrose to break apart, the crystallization wouldn't occur, right? Because it causes there to be different molecules in the solution and they won't bond together, therefore, there would not be any crystallization. I am doing an experiment for class and want to know, if I added an acid, for example lemon juice, what would happen? Would it be a good experiment? Thank you for even taking the time to read my question. Have a great day!
2269: My teacher put carbon dioxide in one balloon and air in another balloon. When he dropped the two balloons from the ceiling, the carbon dioxide balloon always landed first. I thought they should land at the same time. Why is that?
2270: Does oxygen burn?
2271: Why is it important that the end result of the process of meiosis is sex cells that contain half the amount of DNA that is in body cells?
2272: Did Rodinia or Pannotia ever exist?
2273: Dear science line, I am doing the P.Y.P exhibition and my group is working on nuclear power and control. We were wondering why do we have nuclear power and weapons? Sincerely, Aiden.
2274: I have few questions to ask about for my project which is a solar cooker. Firstly, I would like to know any materials that are suitable to absorb heat. The solar cooker that I'm about to make has to only heat or boil the water so I would love to know any material that is suitable to absorb heat. Next, I made a thermal paste (toothpaste and Vaseline) but it didn't seem to work. I am sure that the quantity used is correct so I would love to know any alternative paste that I can use instead. If possible please give any relevant information regarding this project. To build this project I'm not allowed to use metal, mirror and glass. Thank you very much and hope you could answer me as fast as possible.
2275: Earlier humans had a tail with appendix bone. But now the tail has disappeared. Why?
2276: Do we have to worry? Is the sun going to explode before we die?
2277: Do you weigh one sixth of what you weigh on earth when you are on the moon?
2278: My son is doing a science experiment on which color of shirt dries the fastest - black, red, blue, white. Of course he hypothesized that the black shirt would dry the fastest. He also got many helpful info regarding his topic on your wonderful site.BUT, he really have to perform the procedure and test by measuring the amount of moisture on all shirts when left outside to dry. What would be the best way to measure the amount of moisture? He thought about getting a soil or wood/humidity meter but he is not sure if that would work, he plans on sticking it to the fabric, wrapping it around, but it might not give an accurate reading. He did further research and came across a portable moisture meter that is industrial grade and is used in the textile industry (this would really work because the device has a ring that can be gently rubbed on the cloth and has an indicator if its wet or dry) but the $$$$ is way out of reach---starts at $1200! So he saw your site and is asking for your help on other ways to measure the moisture content of a 100% cotton shirt. Thanks in advance for your help.
2279: What causes grass when cut to have an odor? What is the ingredient that causes the odor. I am really not allergic to the grass but the odor. Also, does chlorophyll have an odor? Your answer will be of great help to me. Thank you.
2280: Can humans live on the sun why or why not?
2281: Can we invent a machine which could launched in that part of the sky where pollution is intense and by that machine we can use pollution as a source of energy to generate electricity?
2282: Has a dinosaur ever been found that was split between two continents? As in, part of the body found on one continent and the rest on another continent?
2283: How salty dose the ocean have to be for an egg to float?
2284: Does photosynthesis really has to involve water?
2285: How did different race and languages become about, if we all come from Africa?
2286: Why do earth worms come out when it rains?
2287: How does salinity, water temperature, depth, waves, tides, and ocean currents affect starfish?
2288: Between which lines on a ray diagram will you measure an angle of reflection?
2289: Can we use nuclear energy in our homes?
2290: How much deep from earth surface has emerald been found in the world?
2291: I would like to know what causes the redness and a green flashing light in my mom's eyes.
2292: I have set an experiment to investigate respiration in germinating seed. The experiment is set as follows: a capillary tube which has the indicator fluid is inserted into a test tube containing soda lime and a germinating seed. What will happen to the indicator fluid in the capillary tube after one hour?
2293: Is a cell wall alive?
2294: Do objects in darker color reflect or absorb the most light?
2295: What type of problems would result if everyone heated their home with coal?
2296: I am doing a research about a species that has gone extinct and I figured out that the species have grown a certain way because of "fossorial tendencies." I have tried everything to know what that is. If you can please inform me of what fossorial tendencies is, I would appreciate it very much.
2297: What causes flower reproduction?
2298: What liquids do electrolytes pass through?
2299: What is the largest modern animal on the Earth?
2300: Suppose that scientists found parts of the DNA from a dinosaur, what information would this discovery provide to the scientists? What information would it not give them?
2301: What is mitochondria?
2302: Can you give me an example of a lava dome volcano?
2303: Why dinosaurs become extinct?
2304: Can moss determine direction when you are lost?
2305: What effects does sunlight have on colors (particularly black or dark)?
2306: What is sperm?
2307: Do Triplets occur naturally?
2308: How can I get a seed from a plant or a tree?
2309: How does oxygen help fire to stay burning?
2310: What are ways for our eyes to see better with?
2311: What is a virtual particle and its relationship with quantum field theory?
2312: Does the color of the light bulb affect the temperature around it?
2313: Can you tell me facts about the alligator snapping turtles?
2314: If you had an object hovering in a school bus and the school bus moved. Would the object move with the air in the bus or hit the back window? Also, would the outcome be different if the windows were open or closed?
2315: Can you influence dreams?
2316: What animals besides humans prey on angler fish?
2317: Why does tapping a soda can minimize explosions? Does tapping the sides also help?
2318: What effect does the moon on its axis have on marine life?
2319: How do flowers know when to bloom?
2320: Does the sun change temperature throughout the day? If this happens, what is the rate of change per hour/day?
2321: Does carbonation affect how fast a liquid evaporates?
2322: Why do a lot of people die from cancer? My aunt yesterday die from cancer in my own arm.
2323: What is a submarine made of. And how could we make it better?
2324: When water is boiling, what is it precisely that is inside the bubbles being produced? What substance and what phase?
2325: Suppose a tank of carbon gas in a hospital has a leak. Will the gas be found near the floor or near the ceiling? Why?
2326: What is most likely to happen if we did not have a stomach?
2327: What would happen if the cell cycle would not take place?
2328: How do species change over time?
2329: Questions for expert regarding Climate Change.
1.What are a couple of examples of how animals have changed because of climate change?
2. What is some evidence that proves that climate change is happening?
3. Can people die because of too much carbon in the atmosphere?
4. Where is climate change effecting in the world the most?
In your opinion, can climate change be stopped?
5. What year is climate change going to stop?
We are in an investigation project for school and are trying to get these questions answered by Tuesday, May 31. If you are able to answer them, we would REALLY appreciate it and were wondering if we could also add a picture of you as our expert that we asked questions from. If that is fine, can you also send a picture with your answers. We are using our teachers email because we do not have one. Thank you sooooo much.

2330: What is an anus?
2331: Were the dinosaurs the first animals alive on Earth? If not which was the first animal alive on Earth? What species?
2332: When baking soda reacts with vinegar they produce carbon dioxide. How can you identify that gas?
2333: What kind of animals live in the hadal zone, the deepest part of the ocean? I cannot find the answer.
2334: Does everything in the world need the sun to survive?
2335: Who was the first person(s) alive, what was her/his name, what year were they born and pass away?
2336: When will the next rocket go to space?
2337: How does gravity affect plants and NON-Living things?
2338: Will an iPhone charge with a watermelon?
2339: On a weather map , how can you tell what direction a front is moving?
2340: What is the function of the folds within the mitochondria?
2341: What is the difference between the sporophyte generation and the gametophyte generation of a plant?
2342: What is the vitamin required in order for our bodies to have a good eyesight?
2343: Where do unicorns and horses and flying unicorns can be found?
2344: Which has more genetic information, a body cell or a gamete?

1. How do tsunamis happen?
2. How long do tsunamis last?
3. What is the difference between a tsunami and a hurricane?
4. What are the similarities of a hurricane and a tsunami?
5. Where do tsunamis happen most in the world?
6. Which is most destructive, a tsunami or a hurricane?

2346: Do all snakes hibernate?
What Skeletal/Muscular systems contribute to their movement?
How do snake species inject venom and do they all inject venom the same way?
Thank you for taking the time out of your busy day to answer my questions. I would personally like to thank you for all your hard work that you do to preserve wildlife through out the world.

2347: How do pitcher plants collect the sun for food?
2348: I seem to recall reading somewhere that crystal clear sea water was not actually a good indicator of a healthy environment from a wildlife perspective. My understanding is that crystal clear water is that way because it contains no sediment/nutrients (which make the water cloudy) and therefore, nothing for microbial life to consume. This in turn feeds up the food chain meaning that, while clear water appears ideal from a human perspective, the reverse is actually true and that it is bad from an ecological point of view?
Can you confirm this?

2349: If you could somehow create a 'vacuum' around your home, would that stop the transfer of heat and cold in and out of the structure?
2350: Why are plants important?
2351: What plants need the most in order to survive?
2352: Why are all humans different? We are all animals. Is it because are we different species or race?
2353: What does it happen after the magma is formed?
2354: How many vertebrae does a blue whale have? Do all blue whales have the same number of vertebrae?
2355: How and why does conductive ink conduct? Is it possible that some day this conductive ink will replace copper, gold or silver on board circuits?
2356: About one-two years ago I stared at the sun until I saw a full circle. When I looked back down at earth, it was dark for about a minute. I closed my eyes during this time. When I opened my eyes, everything was normal - no pain, no darkness. Was that even normal?
2357: What is a vacuole?
2358: Why does light affect the rate of photosynthesis?
2359: Why will a person/animal (i.e. dog) continue to travel in a straight line while jumping (assuming initial trajectory to be a straight line) despite twisting motion? (i.e. attempt to twist left/right when viewed from above)? Intuitively I know it is not possible to alter the trajectory without input of an external force, I just don't know how to really explain it.
2360: Why are dogs used to detect drugs or illegal substances at airports?
2361: Is it possible for a fish to be frozen in a block of ice (suspended animation?) and survive? My friend says that sometimes fish in Canada get frozen and will thaw out in the Spring/Summer.
2362: How did animals come to be after the big bang?
2363: Hi,I just thought of one reason why ships and aircraft sink in Bermuda triangle. I thought that probably because ships are made up of metals and magnets attract metals, is there the possibility that there are magnets inside the sea that are capable of attracting ships? In that case, I don't know how magnets came there.
2364: Can you explain me the reason for the strong earthquake in Italy a few days ago? Why this earthquake did destroy so much?
2365: How much time does it take for life to first appear on a fresh lava flow, if the lava flow is near the equator? Or if you see grass and or ferns starting to grow on a lava flow; what can you say about the age of the lava flow?
2366: I am doing a research project that has to do with finding how efficient certain substances are at lowering the freezing point of water (freezing point depression) compared to other substances. So far, my research has showed that I can use the formula "ΔTF = KF · b · I" for ideal solutions. If the solution isn't ideal, then the ΔTF is altered from the standard calculation. What solutes can I mix with water that would result in an ideal or near-ideal solution?
2367: I am doing a science fair project on "Which waterproof mascara is most water proof?" What is a polymers? What does it mean hydrophobic? What is the chemical that makes the mascara water proof? I am having some trouble. Can you help me?
2368: Why do cats have an extra toe on their front paws?
2369: What came first the chicken or the egg?
2370: What is the eye of the storm?
2371: I wonder why overtime my hair stopped being curly and is now wavy.
2372: When will the 6.5 earthquake hit Santa Barbara?
2373: How was the earth created?
2374: How do tornadoes form?
2375: Why are cats so flexible?
2376: Does the size of the moon effect how big the ocean waves are?
2377: Why is the sea really clear in some places and not in others?
2378: Does the change in weather affect the magnitude in an earthquake?
2379: Is there any life outside our solar system? How will we know? When will we be able to know?
2380: How does mental health conditions like schizophrenia occur? How does it get into your brain?
2381: Why are people able to remember things with their brain but forget them when they get severely brain-damaged?
2382: What are the mechanisms behind human speech?
2383: What is the mechanism behind fear?
2384: How are dogs still 99% wolf, after all of the genetic engineering humans have done on them? Is the wolf in them always there, or is it triggered?
2385: How do droughts happen?
2386: Why do all living things die?
2387: Not including humans what is the most civilized species?
2388: Why is some ice dark blue while others are light blue or white?
2389: I wonder if the myth that cats always land on their feet is true. Why?
2390: Is cancer hereditary? If so, how can you prevent it?
2391: How does a television remote send a signal to the receiver, and how does the receiver pick up the signal?
2392: Why does it take so long for trees to grow?
2393: Why do clouds appear to have a fluffy kind of look?
2394: Why can't some animals not sweat?
2395: How long will it take for the brains of animals to be as evolved as the human brain?
2396: Why do people kill each other?
2397: Can you genetically engineer a dog to make it bigger?
2398: How are trees able to live so long without dying?
2399: How was the first animal tamed?
2400: If we cant see atoms how do we know about them or how can we even see them?
2401: I wonder why are brain cells different then normal cells?
2402: Why does a soccer curve when you kick it? How does it happen?
2403: Why do sea anemones squish up when you touch them?
2404: I wonder why the water is warmer in certain parts of the world.
2405: Can other kinds of animals evolve like us? And can humans evolve more?
2406: Why does the gravity lessen in space? Is it because we are going away from the earth? Then why don't we just float away on the earth? Is it because of the atmosphere protecting us? If so, What if the Atmosphere didn't exist?
2407: Does the moon really affect our mood?
2408: Why do animals that live in salt water only survive in salt water and not in fresh water?
2409: I have always wondered that when the world spins why people do not feel it spinning.
2410: Why animals have such strong immune systems compared to us (humans)?
2411: What will happen to the Earth in about a million years?
2412: How do animals understand humans. How do they know there names and know when to come when called?
2413: How does a ball curve through the air?
2414: Why does gravity make you fall?
2415: Why do dogs' eyes change? Why do fishes change color and glow some times?
2416: Why does nitrogen freeze everything that it touches?
2417: How do pictures go from a camera to a piece of picture paper?
2418: Where did we (human beings) come from? Are we monkeys? Are we fish or will we never know? I think we are monkeys but not a similar one as in the zoo, I think we are a type of monkey that we don't know about.
2419: How does the moon affect the tide?
2420: How do dogs understand people?
2421: Why do dogs breathe smell better than human breathe?
2422: Why does Earth have a core? Why does it orbit?
2423: Why do tortoises live so long ?
2424: Why do plants need water to survive?
2425: How did dogs adapt to humans?
2426: Why is the ocean so salty?
2427: How do we know about atoms? How do we know they are there?
2428: How deadly is the flu virus?
2429: What happens when you mix sodium and bleach?
2430: How was everything on Earth created form two asteroids "hitting" each other?
2431: How do earthquakes form?
2432: Can you tell me how water is bonded together and the unique properties that result from those bonds?
2433: Why can't women produce sperm?
2434: How do I Program Robots?
2435: Does space ever end?
2436: If you brought a moon rock home to earth, and took it out of it's vacuum container, would it explode or implode?
2437: What does oxygen in plants mean?
2438: What would happen if the plant cell could not get rid of waste materials built up in photosynthesis?
2439: Why do things give us the creeps?
2440: How do voices work?
2441: What parts of a plant need water?
2442: What organism is all multicellular?
2443: How do scientists measure precipitation?
2444: Can matter be created or destroyed when a chemical change occurs?
2445: Besides Hyenas, vultures, and sharks, which other animals have the strongest stomach acids? Thanks.
2446: Can and how does eye color effect the way you see colors? I've noticed that sometimes my friends will see a color differently that me, like I see dark orange and they see red.
2447: How much force does it take to hit a tennis ball? And if that is not good enough, how much force does it take to break a defective tennis ball?
2448: What are the three reasons Pluto is no longer considered a planet?
2449: Does the sun help plants grow? IF it does, then how?
2450: How did plants first came to Earth? How were plants made? Can other plants grow on other planets and be eaten? That would be awesome.
2451: How does printer ink dry so fast? What is it's chemical makeup and what part of it causes it to dry so quickly?
2452: What is spinosaurus spine (sail) for?
2453: If the universe is in a constant quest to reach an equilibrium, and lets say it finally does reach this point, what will happen?
2454: Do fish have blood? Why do not we see blood when we eat fish? When we eat read meat we see the blood, why not in fish?
2455: Does the color of a shirt affect the amount of heat it absorbs?
2456: How is Science beneficial to the Nation?
2457: Where are the location and electron carriers and terminal electron acceptors within Photosystem II (P680)?
2458: Does temperature impact a balloon?
2459: Can you give me examples for chemical and physical properties and changes?
2460: Is there a way for someone to live with lung cancer?
2461: Who proved that the theory of Continental drift was correct? How did he/she explain how the plates move?
2462: I wonder if vinegar and baking soda will blow up a balloon without exploding, and turning into a chemical reaction?
2463: What animal or animals use its/their color to attract attention?
2464: Where does fantail goldfish live?
2465: Radiation from space hits Earth every day. The radiation particles are moving faster than light and colliding with Earth. How can you slow down these particles? And one last question can chemical energy from chlorophyll in plants be converted into electrical energy? Please answer my question it will be really helpful to get a good response.
2466: Which color light affects plant growth the most, red, yellow, blue, or green?
2467: If a plant is placed upside-down, which direction will the stem grow as a result of gravitropism?
2468: What homemade remedy do you believe will work best to cease apples from browning when cut? How do you suggest I test multiple substances to prove if there is a certain one that reduces apple browning more?
2469: What is the reaction when adding HCl to sodium bicarbonate? Then adding in sodium hydroxide creates a precipitation.
2470: How does temperature affect the growth of sugar crystals?
2471: How do brain diseases happen? Diseases like Bipolar Disorder and Major Depression. How do some people get it while others don't? Does it happen with a family line or just random?
2472: Where do the lithosphere and the asthenosphere do coposition?
2473: Can the moon turn full between rising and setting?
2474: Why doesn't dry ice melt?
2475: What is density?
2476: When a LED bulb is touching lemon juice will the bulb glow?
2477: What is the average radius of the sun, in meters?
2478: What is the hottest star within 20 light years of Earth?
2479: Where does sunlight fade paper first, in books or in magazines?
2480: Which are the names of scientists who study fossils?
2481: In which way do air conditioners contribute to harm our environment and to global warming?
2482: How do snails dig holes?
2483: How can you find glitches in programming without having to go through it manually and run the program a lot?
2484: Will helium gas, CO2, or nitrogen affect the size of a marshmallow, and how?
2485: What makes lava hot?
2486: Does many people die from tsunami?
2487: How long does it take for frozen yogurt to melt in room temperature?
2488: What chemicals or materials are in lip gloss?
2489: How does electricity affect magnets?
2490: How does chemosynthesis help organisms?
2491: How and why does nail polish and vegetable oil form slime?
2492: Why does our moon "control" tide waves? It just plain out baffles me.
2493: I have enjoyed reading and learning from your UCSB science line web site. I work with Jean-Michel Cousteau’s Ocean Futures Society (OFS) located in Santa Barbara. I teach tropical biology programs through OFS and the subject came up with a student a while back about the advantage of uric acid excretion in birds. Here is the question: since bird embryos must live with their waste in the egg, isn’t a big evolutionary advantage of excreting uric acid a reduction in self pollution of nitrogenous waste in the egg. Since water is limited and there is no way to get rid of ammonia or urea, uric acid is logically the best and only safe way to deal with such waste in the egg.

I’ve looked on line and in some text books and not been able to find an answer to this question. Your help would be greatly appreciated.


2494: Why is pollution bad? And what will happen if we continue life as we already do with the same pollution rates as we do today?
2495: Why does the solution of vinegar and baking soda turn cold?
2496: Why does baking soda stay at the bottom when we were doing the experiment by putting baking soda with vinegar?
2497: What causes reactions in baking soda?
2498: Based on a research in Norway, "... the Barents Sea and what they found could offer a viable scientific reason behind the Bermuda Triangle phenomenon. 'Multiple giant craters exist on the sea floor in an area in the west-central Barents Sea ... and are probably a cause of enormous blowouts of gas,' researchers told the Sunday Times. The craters in question were a half a mile wide and 150 feet deep, the Daily Mail reports. The researchers think methane leaking up through natural gas deposits caused the craters, meaning there wasn't just the gradual erosion but explosions of gas as well." Do you believe this could be a possible explanation behind the Bermuda Triangle phenomenon?
2499: I'm doing a speech on pesticides and how their a major factor in killing off bees. 1)Do the pros outweigh the cons of pesticides? 2)Is there anyway to make pesticides poisonous to a specific bug so it doesn't kill off other insects? 3)Are the bugs the pesticides being used for that disastrously bad on farms? Thank you.
2500: My mom had blood drawn from her arm at the doctor's, and it looked black. What does it mean black blood? Thank you for the answer.
2501: How does electricity flow from a Lemon to a Light Bulb?
2502: How do colors absorb light?
2503: How many cells die per minute in an adult male?
2504: Just asking a quick question for my science fair project. I was wondering what the other ingredients in disinfectant sprays do. Ex.(dimethyl benzyl ammonium chloride, water, propane, isobutane, sodium nitrate, sodium benzoate, and soyethyl morpholinium ethosulfate. If you could just send a rundown of each of the ingredients, that would be amazing. Thank you. Sincerely,
2505: If marshmallows are exposed to air for a period of time, is it the air that draws out the water molecules in the marshmallow that makes them go stale? What is the chemical reaction to make a marshmallow stale?
2506: Why didn't most geologists believe Alfred Wegener's theory?
2507: If objects of similar size and mass are thrown as hard as possible, such as a tennis ball and a baseball, which will travel a farther distance? How does mass affect the distance? Do lighter objects travel farther or heavier objects?
2508: Mitochondrial DNA does not contain genes for [self] replication. It's almost like the genes were edited out by the host cell. 1. How would this occur? 2. Do unused genes generally get dropped or rationalized if unused?
2509: Why do sunlight give off oxygen?
2510: Does a hard boiled egg float at the same salt concentration as an uncooked one?
2511: Will the stars appear very bright in new moon day? Or full moon day?
2512: Where do plant cells live?
2513: What are the ocean currents that affect the United States?
2514: What is the ISS?
2515: What ingredients react to baking soda?
2516: How did oil form in Alaska and how did it shape Alaska?
2517: Which freezes faster Tap water, distilled water or salt water? Would like some information on each to be able to show the difference in the three waters that would support which one would freeze first, second and third. Thank you!
2518: What season do the lupine grow?
2519: Why does a kangaroo have a pouch?
2520: How do things explode?
2521: Are all plant cells squares and all animal cells round in shape?
2522: Can air temperature affect the cooking efficiency of a solar oven?
2523: How salty does the sea have to be for an egg to float?
2524: Why do people have to take shots and medicine for diabetes?
2525: Are people born flexible?
2526: How does the mountain events changes or re-shape the earth's surface?
2527: I tested the electrical output of fruits and the kiwi put out the most, why?
2528: What is the evidence that support the theory of plate tectonics?
2529: This is Nick, a freshman at Tellico Plains High School, we are doing a science fair and I am doing a Baking Soda Bomb. Do you have any advice for me?
2530: When oxygen and hydrogen are gases, and they they combine, why do they create liquids, at room temperature?
2531: Who discovered the electron?
2532: Is it possible that Earth originally developed prokaryotes as a form of collecting ingredients from its surface and atmosphere in order to re-utilize them for preservation?

I wonder this because how else could inanimate material come alive, and I once read that the Earth is alive itself, leading me to believe that Earth could have been the first producer. I still wonder how the Earth would have come alive itself, but I theorize the electrical forces of atoms and specific molecules pulling or pushing themselves together or apart, as well as the natural movement of heated atoms, along with the already present forces of Earth's spin and movement produced by the big bang could have caused the inanimate Earth to begin "come alive." The original moving up of iron (or whatever element was attracted to another) from inside Earth could have led to a chain of reactions that led to more chains of reactions, and so forth, so that a never-ending push and pull were then created via the original electrical attractions. I realize this is a complex idea and a far-fetched question, but I found your website and thought I'd ask. Thanks either way!

2533: Can animals survive if moved to a different ecosystem?
2534: Why the tail of house lizard can grow again and that of cow cannot?
2535: I don't understand how nothing can stop instantly. I was told that if a bullet going 1000 mph was fired at a wall, even when it hit the wall, it would have to go through all the speeds from 1000-0. It couldn't instantly go from 1000->0. What really trips me out is how can the bullet be going 999 mph if, in fact, the bullet is not moving (since it hit the wall)?
2536: I teach preschool and we have always done the baking soda vinegar explosion because kids love it and I am wondering if is there anything you can add to stop the reaction. I thought that this could be an exciting addition to the experiment. Thanks, Megan
2537: Why Carnot engines can never exist?
2538: What are the oceanic and continental crusts made out of and how did they "float" on the asthenosphere instead of sinking?
2539: How are plants made, and what are they made out of?
2540: How to things that are so small and so limited in variety, such as quarks, protons, electrons, neutrons, and nucleotides, make up things that are so complicated and completely different, like elements and DNA?
2541: What keep the water hot?
2542: How do different sounds affect animal behavior?
2543: If you could find a substance that repels oxygen and nitrogen to a certain degree, could you make that substance able to float? If you could stick it to stuff, could we have floating cars, amusement parks, and everything else you could imagine?
2544: Which scientist hypothesized the layers of Earth?
2545: If we traveled to the center of the earth, how often could we go?
2546: From your experience, what type of plants work best with organic fertilizer and as with inorganic?
2547: Do different colors of light change the color of a plants' petals or their growth?
2548: Did the Apollo spacecraft fly in a straight line before entering the moon's orbit? I was told the spacecraft kind of travels like a sailboat tacking through the water. Sometimes the Apollo would be on course then off course. Actually I was explained the Apollo traveled only "on course" 2% of the time.
2549: Can we describe viruses as being parasitic?
2550: How can a fossil provide evidence that a certain animal existed?
2551: I am a 7th grade student at New Braunfels Middle School in New Braunfels, Texas. My partner and I are doing an English Language Arts project on the environment. We are required to contact an outside expert on a topic of our choosing. We have chosen Ozone Layer Depletion as our topic. We have come up with the following questions in need for your help:
1) Why is there a hole in the ozone layer over the coldest continent?
2) If we didn't have the ozone to protect us, how would our population suffer?
3) What are the best remedies to stop ozone layer depletion?

2552: My name is Charlotte and I am a biology student in 8th grade. We are doing an Independent Research Project, and my topic question is "What Enzyme causes gelatin to lose its setting properties and how, and what fruits contain this Enzyme in addition to pineapples?" I was wondering if you could provide me with more information on how you found out that the certain Enzyme that causes gelatin to stop working and how it does so. Thank you so much,
2553: Can fingerprints have more than one ridge?
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