Great experiment dissolving M&M's in oil or water

Just found a great little experiment at the ACS site in which you drop M&M's in water and in oil to see which dissolve better. The lesson teaches students about polar and nonpolar substances.

Swimming Gummy Gecko

Here's another fun gummi gecko trick. After it sits in water for two days, it's flexible enough to go swimming!

Video: Hearts Bobbing in Soda

Up and down the Brach's hearts go.
Why do they do it? Do you know?

This is one of my favorite experiments to do at presentations, and it works really well on TV.
It was featured a few months ago in a Candy Experiments excerpt on, and I also have the instructions on my blog.

If you want to see how long the hearts can bob, here's the long version of the video.