Potato Battery

A Summer of Experiments

For this experiment I made a battery out of 2 potatoes. We didn’t have normal potatoes so I used sweet potatoes.

Hypothesis: I thought the potatoes would get hot and steamy because of the electricity. I thought the clock would turn on and go faster than normal.

Plan: I used copper and zinc metal strips. I put a copper one and a zinc one in each potato. Then I attached a wire to one copper strip and one zinc strip. Then I attached the wires from the clock. The black wire went on the zinc strip and the red wire went on the copper strip.

Conclusion: The potato battery made the clock turn on. The potatoes did not get hotter or steamed. The time did not go faster than normal.

I found out that the potato works as a battery because of a chemical reaction. There is acid inside the…

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