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Learners construct an electricity-generating wind turbine out of a plastic bottle.

In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.

Learners make a simple battery out of "sandwiches" of aluminum foil, pennies, and a salt water-soaked paper towel.

This activity requires a Pico Cricket (tiny computer). Learners work on designing and building a sound sensor out of household materials, like plastic wrap and cardboard.

In this activity about electricity, learners build and test a paper clip switch to turn on a light bulb.

This is a series of demonstrations about different electrical and magnetic phenomena.

Make a model city happier with LEDs, circuits, motors, and batteries! Groups can think, discuss, design, and build what would make a community happy. Kids can work as part of a team or on their own.