Insulators vs Conductors

Front

What are conductors?

Back

Materials that allow electricity or heat to flow through them easily, such as metals.

Front

What are insulators?

Back

Materials that do not allow electricity or heat to flow through them easily, such as rubber or wood.

Front

Give an example of a good conductor.

Back

Copper is a good conductor of electricity.

Front

Give an example of a good insulator.

Back

Plastic is a good insulator.

Front

Why do we use insulators in electrical wires?

Back

To prevent electric shock and to keep the electricity flowing in the wire.

Front

What happens to heat when it passes through a conductor?

Back

It transfers quickly, making the conductor feel hot.

Front

What happens to heat when it passes through an insulator?

Back

It does not transfer easily, keeping the insulator cool.

Front

Why do cooks use oven mitts?

Back

Because oven mitts are insulators that protect hands from heat.

Front

What type of materials are usually insulators?

Back

Nonmetals, such as rubber, glass, and wood.

Front

What type of materials are usually conductors?

Back

Metals, such as aluminum, copper, and gold.