Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email flinn@flinnsci.com

With the Two-Potato Clock Science Demonstration Kit, operate a clock using two potatoes as an energy source. Try limes, lemons and more! Besides providing students with a functional clock, explain how and why the Potato Clock works.

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Operate a clock for months at a time using nothing but two potatoes as an energy source. Or you can try limes, lemons, plants, soda and more. Besides providing you with a clock that keeps great time, we also explain the chemistry of how and why the Potato Clock works. Fun!