Insulators and Conductors

Insulators

Materials that do not allow electrons to flow are insulators. Examples of insulators include glass, rubber, and plastic. Electric cords have rubber insulation wrapped around the cord and plug to prevent electric shock.

Conductors

Conductors of electricity allow an electric current to flow. Metals such as copper, silver, and aluminum are conductors. Conductors, such as metal wires, are used in electric circuits.

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