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The 4M Green Science | Potato Clock Kit

by 4M
Sold out
Original price $22.99
Current price $20.69
Ever wondered just how much energy is in your standard garden-variety potato? Well, wonder no more! Create your own digital clock powered purely by a potato (and a little handy help from our friends, chemical reactions!) Be the pride of the kitchen as you show off your scientific wonder and get an accurate digital clock out of the bargain too.