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In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

In this activity, learners make a yeast-air balloon to get a better idea of what yeast can do. Learners discover that the purpose of leaveners like yeast is to produce the gas that makes bread rise.

In this activity, learners create a necklace of wheat germ DNA. Learners add alcohol to wheat germ so that the DNA clumps together.

This activity teaches combustion as the interaction of a fuel source and oxygen.