A component is a device in an electric circuit, such as a battery, switch or lamp which allows electricity to pass through it. Each component makes something happen using electricity.

To make your own, you’ll need some wires, a small slide switch, and know how to solder. Beyond that, the rest of the build is comprised of pieces from an old 9v battery.

Learn about symbols for electrical components and how to draw circuit diagrams. Bitesize Scotland Science article for learners at Second Level Curriculum for Excellence.ls explained for curriculum ...