Electricity is all around us. We can use it to make light or sound. We can use it to heat things up or cool things down. We can use it to make things move.

Look at the picture. Which things use electricity?
Things that you plug in use mains electricity. Mains electricity is very powerful. It is made in power stations like this one. Can you see the wires?

A cell can store electricity. A cell is often called a battery. Cells are used for things that people carry like torches or mobile phones.

There are different kinds of cells.