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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.

In this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar.