4M Tin Can Calculator (Green Science)

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375.00EGP

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4M Tin Can Calculator (Green Science) Details

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Running out of batteries for your calculator? No Worries! Recycle tin cans and pencils to generate enough electricity to power a calculator!
Create green energy by making your own batteries. Using recycled soda cans and pencils.
Teaches you the science of creating electricity. Generates enough juice to power the included calculator for hours.