Recently I presented Easter candy experiments at a local preschool. The kids were amazed.
First, I asked them to guess if these Robin's Eggs would sink or float.
Then I dropped them in water.
Surprise! The blue egg was solid milk chocolate (Brach's brand). The floating eggs were Whoppers.
I also showed them how to test candy for acid. These Sour Patch Jelly Beans, with a sour coating, worked great in baking soda water.