What Can Electricity Flow Through?

Click each object to test if it completes the circuit!

Instructions: Build a circuit with a battery, wires, and a bulb. Place each object in the gap. If the bulb lights up, electricity is flowing through it!
BATTERY
Power source
gap
Test object
off
Object Result Conductor?
Paper clip—
Penny—
Index card—
Plastic spoon—

What did you discover?

Materials that let electricity flow are called conductors (usually metals). Materials that block electricity are called insulators.

Electricity can flow through: —