1.1. Many power stations burn fuels to generate electricity.

Fuels can be renewable or non-renewable.

Wood is used in some power stations.

Why is wood called a renewable fuel?

1.2. A student has completed her homework on fuels used in power stations.

Look at her table below.

She has made two mistakes, identify these in the table by putting a cross (x) next to them.

1.3. Power stations produce electrical energy and use the National Grid to send the energy to factories and homes in the UK.

A step-up transformer is used in the National Grid.

State what a step-up transformer does.

1.4. Domestic UK electrical wiring uses live, neutral and earth wires.

Complete the two empty boxes.

Draw lines to match up the wires to their colour and function.