Cool idea but doesn't keep good time
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7% of people buy 4M: Green Science Potato Clock and 4M: Kidz Labs - Kitchen Science.
Buy together: $34.47
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Cool idea but doesn't keep good time
Be a scientist as you discover how to power this digital clock using potatoes and NO batteries. Experiment to find out what other substances will power the clock.
Contains digital clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions.
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