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Learn about chemical reactions while building a clock that runs on potatoes.
- Separate potatoes calling one A, and the other B.
- Place one galvanized nail in each potato.
- Place one copper nail in each potato insuring that the nails don't touch.
- Remove battery from clock. Take notice of the batteries polarity in relation to how it connects to the clock.
- Connect first jumper wire from copper nail of potato A to the positive terminal of the clock.
- Connect second jumper wire from galvanized nail of potato B to the negative terminal of the clock.
- Connect third jumper wire from the galvanized nail of potato A to the copper nail of potato B.
Things You'll Need
- Battery operated LCD clock(1.5V-2V).
- 2 large potatoes.
- 2 copper nails.
- 2 galvanized nails.
- 3 jumper wires with alligator clips on each end.
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