Grade 4 · Science · Lesson 21

Electricity and circuits

Electricity is the flow of electric charge through a conductor. For electricity to flow, it needs a complete path called a circuit. A simple circuit consists of a power source, wires, and a load such as a light bulb.

What this lesson teaches

1Define electricity and explain how it flows in a circuit
2Identify the main components of a simple circuit
3Distinguish between open and closed circuits
4Classify materials as conductors or insulators

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