Features:
a chance to play with your food!Learn about electricity and chemical reactions in an innovative way.
Just push the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage.
The Two Potato Clock allows you to generate enough electricity to run a digital clock
You can also try other fruits, vegetables and beverages to see what works like:
— Apples — Avocadoes — Bananas — Cucumbers — Lemons — Limes — Oranges — Salt Water — Soda — Tomatoes — the possibilities are endless!
Note:
1.Please allow 0.1-0.2 inches error as manual measurement.
2.The color just for reference only, as different monitor, color will slightly different from pictures shown.
https://greenpowerlearning.com/learning-green-power/peoria-potato-clock-potato-powered-digital-clock-scientific-clock-puzzle-toys-science-project-kit.html