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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.

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

In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

This online interactive has three activities in the NanoLab (press the upper right button): Build, Zoom, and Transform.

Learn about chemical reactions by making a Bubble Bomb, a plastic bag you can pop with the power of fizz.

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