Average Reviews:
(More customer reviews)Our 7 year old absolutely loves this clock! She is learning about energy provided by inanimate objects like potatoes. She has tried lemons and liquids with good results. Appropriate for a lesson that does not yell SCHOOL! Would be helpful for any child needing to learn to tell time.
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7 years & up. The two Potato Clock allows you to generate enough electricity to run a digital clock using potatoes! Just push the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage.
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