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| No light with a pencil in the circuit - it is an insulator. |
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| A coin lets the electricity through so it is a conductor. |
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| No light with plastic! |
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| A silver ring conducted electricity. |
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| Light from a chain! |
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| A nail works ... |
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| a rusty nail works ... |
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| but not if the wires are touching the rusty bits! |
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| Recording our results. |
I loved making the circuit from ryan.watt.
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