Not only does Alka-Seltzer help you to feel better fast, it's also pretty cool to watch!

The familiar fizzing you hear when you drop an Alka-Seltzer tablet into a glass of water is the result of a chemical reaction. It's also the perfect tool for demonstrating some very nifty science principles; things like the factors affecting the rates of chemical reactions, or the colors produced by a chemical reaction. The following are some science experiments appropriate for in-school or at-home use.

All of the experiments must be done in the presence of a parent or teacher.