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In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

On an imaginary fossil hunt, learners "find" (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.

Learners use scientific processes to solve a crime. As they get clues, learners must create a hypothesis then adjust that hypothesis as more information is revealed.

This activity (on pages 15-23) combines interactive role-playing and graphing to introduce learners to the health affects of pollen.