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In this activity, learners test what happens when they put baking power on different frozen liquids.

This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.

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

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.