What three things are needed to make a simple electrical circuit?

A power source (like a battery), wires, and something to power (like a light bulb).

Why does a light bulb turn off when a switch is flipped to the 'off' position?

Flipping the switch to the 'off' position creates a break or space in the circuit, stopping the flow of electricity.

The circuit must be complete with no spaces or gaps.

Name: Building Electrical Circuits
Author: Insta~Lesson

5th Grade · Science · 30 min· Ngss 4-ps3-2

I can build a simple electrical circuit.

1
Electricity flows from a battery to a light bulb along a path called a circuit.
2
A circuit needs to be complete, meaning there can't be any spaces in the path, for electricity to flow.
3
A switch can be used to break a circuit, creating a space that stops the flow of electricity and turns off the light.

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