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Conductors and Insulators
Age 11 · Physics
A simple circuit has a cell, wires, and a bulb. If the material in the gap lets electricity pass, the bulb lights; if it blocks electricity, the bulb stays dark.
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Age 11: open this week
Browse Age 11
In the picture
- A glowing bulb in its holder: the loop is complete through a material that lets electricity pass.
- A metal spoon closing the gap: it lets electricity pass through the circuit.
- A dark bulb in its holder: the loop is complete through a material that blocks electricity.
- A plastic ruler closing the gap: it blocks electricity.
Examples
- A metal paper clip lets electricity pass through a circuit.
- A rubber eraser blocks electricity in a circuit.
Key takeaways
- Materials that let electricity pass are called conductors.
- Materials that block electricity are called insulators.
Quiz: Conductors and Insulators (Age 11)
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What are materials that let electricity pass called?
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What are materials that block electricity called?
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In a simple circuit with a cell and a bulb, what is needed for the bulb to light?
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