Materials that allow electricity to pass through them are called conductors. Copper wire is a good conductor. Materials that do not allow electricity to pass through them are called insulators. Plastic is a good insulator.

What are materials that electrical current can easily pass through?

Conductors are materials that electrical current can easily pass through. 6. Silver and copper are examples of materials that are conductors.

What type of materials allow electricity to flow freely?

Materials that have low resistance to electric current are called electric conductors. Many metals—including copper, aluminum, and steel—are good conductors of electricity. The outer electrons of metal atoms are loosely bound and free to move, allowing electric current to flow.