Why can lemons power a mini watch? (what we know)

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Why can lemons power a mini watch? (what we know) 作者: Mind Map: Why can lemons power a mini watch? (what we know)

1. A chemical reaction would occur when the acid of the lemon interacts with the metals inserted into it.

2. The voltage gained is enough to power a mini watch.

3. The acid in the lemon is a conductor of electricity.

4. The juice of the lemon closes the circuit.