On a large sheet of plastic backed absorbent paper, place a 1 liter graduated cylinder in a large petri dish. 2 O 2 and 4 drops Ivory dish soap.
Oxygen released by the rapidly catalyzed decomposition generates a tremendous amount of foam.
This reaction generates a lot of heat. Glassware may burn your hand. The catalytic decomposition of hydrogen peroxide occurs when administered to wounds. Catalase, an enzyme in the blood, catalyzes the reaction. Entertain your friends.