Toysmith 4 M Potato Clock # 4568

7 years & up. 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.

• Be a scientist as you discover how to power the digital clock with potatoes

• Potatoes NOT included

• A unique experimental kit that inspires young scientists

• Turn the kids onto the notion of leaving a smaller carbon footprint

• No batteries required