We get energy from many different types of energy resources, including fuels, food and stores of energy such as batteries or the wind. We can divide energy resources into two categories:
Fossil fuels are non-renewable energy resources.
Crude oil, coal and gas are fossil fuels. They were formed over millions of years, from the remains of dead organisms:
Fossil fuels took a very long time to form and we are using them up faster than they can be replaced. Once they have all been used up, they cannot be replaced. Fossil fuels are therefore finite resources. They are no longer being made or are being made extremely slowly.
About three-quarters of the electricity generated in the UK comes from power stations fuelled by fossil fuels. Energy from the burning fuel is used to boil water. The steam turns turbines, and these turn electrical generators. Unfortunately, the use of fossil fuels releases pollution, including: