Great Gizmos - Green Science - Potato Clock
What? No batteries? Become 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 at the variety of results you find using household liquids and objects! Contains digital clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions. Suitable for children aged eight and over.
The standard UK delivery charge is £2.50 for orders up to £30.00. Delivery is free when you place an order over £30.
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