There's not need for expensive, high-tech lab equipment to conduct chemistry experiments-you probably have all you need in your home junk drawer. Turn three pennies and two galvanized washers into a simple battery. Crush a soda can using atmospheric pressure. Convert an LED flashlight into a simple electrolyte tester. Split liquid water into two unique gasses, or use cornstarch to create a gooey, mysterious, non-Newtonian fluid. And model radioactive decay using M&M's, or a chain reaction with a set of dominoes.