Variables in electric circuits: plan
I can plan to investigate variables that may affect the brightness of a bulb in an electric circuit.
Variables in electric circuits: plan
I can plan to investigate variables that may affect the brightness of a bulb in an electric circuit.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- A variable is any one thing in an investigation which could be changed.
- Adding other components to the circuit may affect the brightness of a bulb.
- Changing the position of the bulb in the circuit may affect how brightly it shines.
Keywords
Circuit - An electrical circuit is a closed loop or path that electricity can flow through to make a component work.
Brightness - The brightness of a bulb is the amount of light it produces.
Variable - A variable is something that can be changed, measured or kept the same in an investigation.
Affect - To affect something or someone is to change it or how it behaves.
Common misconception
Children may not understand how variables interact within a circuit and how changes in one variable can affect others.
Teaching slides will relate the need to control variables in a comparative and fair test, to the need to do so with circuits in order to be able to relate a given variable to a measured outcome.
Equipment
None essential for planning. Children may find it useful to have access to a range of components and a way to measure light. Children will carry out their investigations in Lesson 6.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
