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Green Science Potato Clock Diy Renewable Energy Kit, Power Digital Clock

Green Science Potato Clock Diy Renewable Energy Kit, Power Digital Clock

Available at 2 stores

Best price · Kohl's $29.99

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Kohl's price trackerNordstrom price tracker

14-day low
$29.99
Sep 13 · Kohl's
Best price
$29.99
−29% vs high
14-day high
$41.99
All stores
$42$36$30
Sep 13Sep 26
  • Kohl's
  • Nordstrom
Lowest in 14 days: $29.99 at Kohl's. Highest: $29.99. Current best is 0% below the 14-day high.

About this product

The 4M Green Science Potato Clock DIY Renewable Energy Kit is a hands-on educational toy that teaches children how to power a digital clock using a potato. This science experiment kit demonstrates renewable energy by converting the chemical reaction in a potato into electrical energy, eliminating the need for batteries. Children can explore conductivity and circuits by testing various household liquids like juice or soda to see what powers the clock. The kit includes a small digital clock, copper and zinc strips, wires, and detailed instructions. Designed for ages 5 and up, it encourages curiosity, experimentation, and STEM learning through interactive play.

  • Powered by a potato, no batteries needed
  • Includes copper and zinc strips
  • Tests other liquids like juice and soda
  • Digital clock, 6.5cm long
  • Age 5 years and up
  • STEM educational toy

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