Yeast is a fungus. They are one-celled organisms that eat sugar and then release carbon dioxide. Yeast is used for bread making to help the bread rise.
We did an experiment with dry yeast. The objective was to see what type of foods were good for the yeast. We put warm water in graduated cylinders and then put the yeast in the cylinders. Then we put different things in the cylinders. These were our results:
- honey - lots of small bubbles, smelled like bread
- molasses - big bubbles, smelled like molasses
- white sugar - lots and lots of bubbles, smelled like bread
- brown sugar - most bubbles, bubble explosions
The best food for yeast seems to be brown sugar because it is a mix of molasses and sugar.
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