Yeast Fermentation test # 1 - Ingredients
QUESTION
WHEN FLOUR, SUGAR, WATER AND YEAST ARE MIXED TOGETHER, WHAT IS THE RESULT?
MATERIALS
-
2 empty, clean 1-litre soda bottles
-
2 latex balloons
-
2 rubber bands
-
glass measuring cup, 1-cup capacity
-
teaspoon
-
tablespoon
-
all-purpose flour
-
granulated sugar
-
water, room temperature
-
2 packets of Active Dry Yeast (each packet is 1/4 ounce or 2-1/4 tsp)
PROCEDURE
1. Fill each soda bottle with one 1/4 ounce package of Active Dry Yeast, 1 teaspoon sugar and 1 cup of room temperature water.
2. In one soda bottle, add 2 tablespoons all-purpose flour.
3. Secure a balloon on top of each soda bottle with a rubber band.
4. Record and time what happens to the balloon.
OBSERVATIONS & CONCLUSION
1. What happens to the balloons?
2. What is the difference between the two bottles?
3. Does it make a difference in the length of time the fermentation worked between the two bottles, and why?
