Potato Clock

Potato Clock

4M

  • $19.99
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  • Use your experimental skills to find out which substances will power a digital clock.
  • Includes 1 digital clock w/ wires, 2 pots, connecting wire, transparent tape, copper & zinc strips & detailed instructions.
  • Clock size: 2.5" x 1.25".
  • Ages 8 years +.

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