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This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.

This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

Learners explore soybeans, soak them in water to remove their coat, and then split them open to look inside. They also make a musical shaker out of paper cups, a cardboard tube, and soybeans.