some pupils made an electric cell using 2 different metals and a lemon. what evidence is there that they have made an electric cell?
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- A lemon battery is a simple battery often made for the purpose of education. Typically, a piece of zinc metal (such as a galvanized nail) and a piece of copper (such as a penny) are inserted into a lemon and connected by wires. Power generated by reaction of the metals is used to power a small device such as a light emitting
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On the picture, you can see that the clock is on and it's working
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