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In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is small enough to hide.

In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.

In this activity about electricity, learners identify closed and open circuits. First, learners examine and label diagrams of open and closed circuits.

In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.