Обучающая игрушка 4M

Be a scientist as you discover how to power this digital clock using potatoes. Experiment to find out what other substances will power the clock - you'll be amazed! Caution: High Voltage Inspiration and Fun!

The two Potato Clock allows you to generate enough electricity to run a digital clock using potatoes! Just push the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage. Watch your child's delight and sense of accomplishment with the clock they create.

4M Potato Powered Clock contains digital Clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions. Does not include potatoes.