Both chemistry and cooking are about combining ingredients to create something completely different. In cooking, certain ingredients, such as yeast and sugar, are vital to the finished product because of the chemical reaction they produce when they’re combined. This activity demonstrates how yeast works. Materials
3 tablespoons sugar 1/2 cup warm water 3 small packages active dry yeast One empty 1-quart soda or juice bottle Balloon Rubber band
Directions
