Elephant Toothpaste - Colby College

20-30 empty plastic soda bottles, 24 oz. or smaller, with caps. 3% Hydrogen peroxide: 120 mls (about ½ cup) per child. Dawn ultra concentrated dishwashing detergent (works the best, though others can be substituted) Sealable containers to hold hydrogen peroxide . Containers to hold yeast mixture. Yeast: 1 tsp per child. Water: 2 tsp per child ... ................
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