Green science Potato Clock 4M

$15.00 $29.99

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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.

Age: 8 years and up
Contains digital clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions.

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Product Detail

Green science Potato Clock 4M