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Trick your family and friends with this creepy crawler that moves up and down. In this activity, learners construct a circuit and motor device that will move a homemade spider in a spooky way.

In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.).

In this activity, learners use a pencil, magnets, and mat board to illustrate Newton's Second Law.

In this activity, learners construct cars that are powered by hand-made, electric propellers.