| I am doing a science fair project for my honors
class and I am boiling water in the sun with a
plastic bowl, aluminum foil, a small rock, and a
small cup. I am planning that the salt water in
the plastic bowl and letting it evaporate, which
would allow precipitation to fall into the cup.
Would the water inside the cup be fresh, allowing
me to drink it? Or not? |
Answer 1:
This sounds like a great idea to test in your
experiment! You can do a simple experiment to test
this:
Leave a bowl of water and a bowl of salt open
to air, and measure the weight before and after a
day. Then see if the mass has changed, and why
that might be. Equally, when you do your current
experiment (taking salt water and evaporating it),
try drinking the water to see if it is salty, and
that might also tell you something.
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