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In this activity, learners explore an everyday situation, where either of two or more buttons can ring a buzzer.

In this activity, learners explore computer programming and the impact of computers on society. Learners build and test a program to turn a light on and off using an Arduino board.

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

Learners create an electrical-circuit maze out of wire, then try to pass a paperclip through the maze without touching the wire.