Aluminum Foil
Here are a few ways to use aluminum foil in your classroom:
Clean Your SilverPenny Boats
Sugar Cube Rock Cycle
I really thought I'd find more uses for it included in the Science Matters archives, as it seems like I use it more often just a few times per year. Regardless, I think it still makes the Top Ten. In addition, to the activities included, it's great to have on hand when you're talking about the elements on the periodic table and it's fun to throw a ball of it in with items to test with a magnet.
Comment on this post to be entered to win a prize box containing most of the Top Ten Items. And remember, if your comment contains an additional use (not mentioned above) for aluminum foil in the science classroom, you'll receive a bonus entry! I can't wait to hear your ideas!