If you place yeast, sugar and water in a sealed bag and in the sun , what two things will be produced

Explanation:

The purpose of any leavener is to produce the gas that makes bread rise. Yeast does this by feeding on the sugars in flour, and expelling carbon dioxide in the process.

While there are about 160 known species of yeast, Saccharomyces cerevisiae, commonly known as baker's yeast, is the one most often used in the kitchen. Yeast is tiny: Just one gram holds about 25 billion cells. That amount of fungi can churn out a significant amount of carbon dioxide, provided it has the simple sugars it uses as food. Fortunately, yeast can use its own enzymes to break down more complex sugars—like the granulated sugar in the activity below—into a form that it can consume.

Make a yeast-air balloon to get a better idea of what yeast can do.

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CAUTION

Kids, please don’t try this at home without the help of an adult.

Did You Know?

Yeast also produces alcohol as it feeds, which is why it is an important ingredient in making beer.

Did You Know?

In 1857, Louis Pasteur discovered that yeast is a living organism whose activity causes fermentation.

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