Blog > Growth #2 – Is Yeast Alive? Find A Store Yeast Experiment: Growth #2 – Is Yeast Alive? QUESTION IS YEAST ALIVE? MATERIALS Two glass measuring cups, 1-cup capacity each Measuring spoon: teaspoon Granulated sugar Thermometer (to measure water temperature) Warm water (110-115°F) One packet of Red Star Active Dry Yeast (packet is ¼-ounce or 2 ¼ teaspoons) PROCEDURE Make a yeast solution using 1/2 cup warm water (110° to 115°F), 1 teaspoon sugar and 1/4 ounce package of Active Dry Yeast. Each day, transfer 1 teaspoon of original yeast solution to a NEW solution of 1/2 cup warm water (110° to 115°F) and 1 teaspoon sugar. Make another sugar solution and add 1 teaspoon water daily. Keep a record of your progress for five (5) days. OBSERVATIONS & CONCLUSION What do you observe happening to each of your containers? Does the yeast culture continue to multiply even though it becomes diluted by the daily transfer?