Skip to main content

Yeast Experiment: Fermentation #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
  • Measuring spoon: teaspoon
  • Measuring spoon: tablespoon
  • All-purpose flour
  • Granulated sugar
  • Water, room temperature
  • 2 packets of Active Dry Yeast (each packet is ¼-ounce or 2¼ teaspoons)

PROCEDURE

  1. Fill each soda bottle with one packet of yeast, 1 teaspoon sugar and 1 cup of room temperature water. Mix together.
  2. In one soda bottle, add 2 tablespoons all-purpose flour. Mix together.
  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?

Review & Comments

Leave a Reply