What’s a concentration gradient?
How come a hot drink gets cold if you leave it out? I can’t drink my hot chocolate fast enough!
Why does food cool off while drinks get warmer?
What is insulation? What does it do?
Why do balloons lose their air after a long time? Every time that I leave a balloon out overnight, it is always smaller the next day!
What is osmosis?
What is a state of equilibrium?
Here are some questions about this topic.
Click the question to read the answer!
Ask another question about this topic!
See a Full List of Topics
© 1999–2013 BrainPOP and related companies. All rights reserved.
BrainPOP is a registered trademark of FWD Media Inc. d/b/a BrainPOP.
For the full list of trademarks referenced on this page, please see
. Your use of the site indicates your agreement to
be bound by our