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In this activity, learners create night lights using a plastic cup, programmable PICO Cricket, tri-color LED, and sensor.

Learners drop a magnet through a coil of wire to create electric current in a circuit. LEDs in the circuit allow learners to detect the direction of current flow.

In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.