4M Potato Clock


Become a scientist while discovering how to operate a digital watch using potatoes. Also discover what other items will run this digital clock. You'll be surprised! You will have so much fun.

Attention: High Voltage fun!

You'll find that it's really easy. Includes digital clock, containers, connecting cables, tape, copper and zinc wire, and a detailed build guide.

Size: 17 x 22 x 6 cm

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