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In this electrochemistry activity, young learners and adult helpers create a battery from a potato to run a clock.

Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.

Build a car that runs on air. Using household materials, experiment with the power of air to create thrust powerful enough to move a homemade car.