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Circuits and Components

In this worksheet, students will answer questions about the functioning of components in simple elecrical circuits.

'Circuits and Components' worksheet

Key stage:  KS 2

Year:  Year 4 Science worksheets

Curriculum topic:   Electricity

Curriculum subtopic:   Simple Circuits

Difficulty level:  

Worksheet Overview

You are forever using things that use electricity - right?  Many of them have to be plugged into 'the mains'.


Our homes are wired up to the MAINS - we use MAINS ELECTRICITY every day to make our work easier. Also, the appliances themselves also contain circuits inside them - inside your washing machine, TV, etc. are circuit boards and masses of different circuits.


We know that ELECTRICAL ENERGY is changed into, for example:

  • HEAT



TV Washing machine



Because MAINS ELECTRICITY is very powerful and dangerous, we use materials which insulate us and keep us safe when we are using electrical appliances. These materials are NON-METALS, for example: plastics, and are used to cover the metal wires which conduct the electrical energy.


Use all this information and your knowledge as you work your way through this worksheet.

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