C Curriculum Explorer
Science·Energy·conceptual

How switches work

Recognise that a switch opens and closes a circuit, controlling whether a lamp lights or a buzzer sounds

Suggested ages 8–9

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Learning journey

Your child is discovering how electricity works — building simple circuits with batteries and bulbs, understanding how switches control electrical flow, and learning which materials conduct electricity and which don't.

Evidence of understanding

  • Explain that a closed switch completes the circuit (current flows) and an open switch breaks it (current stops)
  • Demonstrate adding a switch to a circuit and using it to control a bulb or buzzer
  • Relate the switch concept to everyday switches in the home

Assessment prompt

Can How switches work explain what happens inside the wall when they flip a light switch — that it completes or breaks the electrical loop?

Standards alignment

Y4.Sci.E.4GB · uk-nc-2013

Function of switches in circuits

The national curriculum in England: Key stages 1 and 2 framework document · Key Stage 2