Marvin tested a material in the science lab. He put it between a wire and a battery in a closed circuit. What evidence might have led him to decide the material is a conductor?

Question

A
The battery lost its energy.

B
He created a short circuit.

C
The wire did not get hot.

D
The light bulb turned on.

Answer 1

The best evidence that would lead Marvin to decide that the material is a conductor is:

D. The light bulb turned on.

If the light bulb turned on, it indicates that electrical current was able to flow through the circuit, which suggests that the material is a good conductor of electricity.