| When you put a wire between both ends of a battery |
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| Chemicals in a battery become weaker |
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| Power lines transport electricity |
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| When you rub two objects against each other |
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| Many electrical devices in our homes |
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| Turbines in power stations are used |
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| Many machines in our homes |
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| During a thunderstorm you should |
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| A switch in a circuit |
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| Copper and other metals |
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