We started a new science unit and really started getting into a good lab. Students learned about yeast being a fungus and then designed an experiment to try to get yeast out of its dormant phase. We discovered that yeast needs warm water and sugar to come out of dormancy. Our observations focused around noticing foam/bubbles in the bag, as well as the bag blowing up slightly. Additionally, we could measure the air in the bag to rule out other test items, such as flour. Finally, we learned that the waste product created by yeast when the single cells come out of dormancy is carbon dioxide.
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