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Potato Clock Kit by Green Science
4M Science Kits
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The average third-grader may know potatoes as a good source of potassium, but they may be surprised to find out that potatoes can be used to power an alarm clock! This kit contains a digital clock and the instructions and everything kids need (except the spuds) to run it.
Kids can also experiment to find out what other substances can be used to power the clock - they'll be amazed!
Ages 8 and up.
WARNING! CHOKING HAZARD: Small parts. Not for children under 3 yrs.
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