Yeasts are microorganisms. They can break hydrogen peroxide down into water and oxygen gas. In this experiment you will investigate yeast activity in acidic, neutral, and basic mixtures. You will observe yeast activity by measuring pressure caused by the oxygen gas they produce.
In this experiment, you will
Use a Gas Pressure Sensor to measure pressure.
Measure and compare yeast activity in acidic, neutral, and basic mixtures.
Make a conclusion about yeast activity.
Sensors and Equipment
This experiment features the following Vernier sensors and equipment.