Here is a link to a video series on youtube from a group called Sixty Symbols. These videos cover aspects of physics and chemistry and are AWESOME!!!! check them out and impress your friends, parents, and eventually college professors with your grasp of some hefty scientific principles http://www.youtube.com/watch?v=qI5q6OqSo4s.
Do you need something to do for AT? Want to expand your knowledge of Chemistry? Did you just sign up to come see me for AT because you needed somewhere to go? Well... never fear!!! I have something for you to work on. Here is a link to all sorts of useful facts, data, home labs etc... that you can peruse during your AT time. All I ask is that before you leave AT you turn in a brief write-up on at least one of the areas this link talks about. Do this, and you get a mark of "Present and Participating".
Here is the link: http://chemistry.about.com/od/everydaychemistry/