|What do scientists do and why?|
|Question Date: 2019-01-07|
A scientist is anyone who is studying or has
knowledge about the natural or physical sciences.
This can mean people who do chemistry, or
biology, or psychology, or earth science like
geologists! There are many fields of
science. Scientists usually like to do
research, which means studying and doing
tests so that they can establish facts and
find out new things!
Scientists are amazing because they help us
find out more about the world we live in.
Medical scientists help us learn more about
the human body so that we can cure disease!
Environmental scientists help us learn
about the earth so that we can take better care of
it. Scientists truly make the world a better
Scientists do all sorts of things. Some of us do
experiments in a laboratory, to learn about
useful and/or interesting things. Some of us
think about things and try to figure out the
answers, and what experiments people might do to
find the answers. Scientists have given us so
many things that we enjoy every day. Look around
you and see your electric lights, refrigerator,
computer, my cute little toy that changes color as
the color of the light changes, my medicines, my
clothes that are good for keeping me warm without
making me sweaty, and lots more. All those
things started with scientific discoveries.
We like to do science, and sometimes we get
paid to do science. You do a science experiment
when you try to figure out if it's cold enough to
need a jacket. You can go outside and feel the
air - that's an experiment. Or you can look at an
outdoor thermometer - that's getting information
to help you decide. Scientists call that
Here's another answer to your question:
Scientists use scales, rulers, thermometers, and
lots of other tools to measure things. Scientists
communicate their findings. We always want
scientists to talk about their discoveries and
share with others. They can tell other scientists,
or they can tell people like you and me. Jul 5,
from this source.
Scientists are people who try to understand the
universe by looking at it, measuring it, and
testing our ideas against what we see and what we
measure. We do this because we are curious, yet
skeptical - we do not accept an answer until we
know that it is true, and the only way to know
for a fact that something is true is by testing
There are many kinds of scientists, but in
general we try to figure out how and
why things happen in the world!
Usually this is done by running experiments, or
making models. Scientists like to use what we call
the “scientific method”. First,
you make a hypothesis about what is going
to happen. Hypothesis is just a
fancy word for an educated guess. Based on
what you already know you try to
guess what will happen. Then you design an
experiment where you will be able
to see what happens. Next, you do the
experiment and collect data - that is you
write down what happens. Finally, you compare
the results of the experiment
(what happened) with your hypothesis. If they
are the same that’s good! It
means what you thought might be right. If they
are not the same you go back
and make another hypothesis based on your new
We do all this because we want to better
understand our planet and our universe.
There are many branches of science, but in general
they fall under a few
categories: biology (the study of life and
living things), chemistry (the study of
matter or chemicals and their properties and
behavior), and physics (the study
of matter and its motion and behavior through
space and time). Of course,
many subjects may fall into multiple categories -
for example biochemistry
combines biology and chemistry!
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