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Year 8

Power stations

I can describe how burning fuels can be used to generate electricity.

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New
New
Year 8

Power stations

I can describe how burning fuels can be used to generate electricity.

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Lesson details

Key learning points

  1. Over half of the electricity in the UK is generated from the Sun, wind and falling water.
  2. Many power stations in the UK burn natural gas and oil to heat water into steam.
  3. The moving steam in power stations pushes turbines, which drive electric generators that produce electricity.
  4. Natural gas and oil are fossil fuels used in power stations; coal is no longer used in UK power stations.
  5. Natural gas, oil, waste and wood are fuels that produce greenhouse gases and pollutants when burned.

Keywords

  • Electric generator - works like a motor in reverse, generating electricity when it is pushed round

  • Fuel - a substance that is burned for heating

  • Non-renewable resource - a resource that cannot be replenished

  • Pollutant - a substance that causes damage to air, water or land and is likely to harm living organisms

  • Greenhouse gases - gases in the atmosphere that keep it warmer than it would be without them

Common misconception

Power stations generate most of the electricity that we use in the UK.

Highlight how over half of UK electricity is now generated using renewable energy resources and that power stations contribute about a third of the electricity. Also highlight the continuing need for power stations due to varying weather and demand.


To help you plan your year 8 science lesson on: Power stations, download all teaching resources for free and adapt to suit your pupils' needs...

Electricity made by an electric generator is 'generated' and that from a solar panel is 'produced'. Referring to the 'making' of electricity should be avoided as that implies it is a substance that can be stored.
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Equipment

None required.

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Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Match the following terms to the correct definitions.
Correct Answer:combustion,reacting with oxygen and causing heating
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reacting with oxygen and causing heating

Correct Answer:exothermic,any reaction that causes heating of the surroundings
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any reaction that causes heating of the surroundings

Correct Answer:fuel,a substance that is burned for heating
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a substance that is burned for heating

Correct Answer:oxidation,reacting with oxygen, whether causing heating or not
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reacting with oxygen, whether causing heating or not

Q2.
In a chemical reaction the in the reactants are rearranged to form new substances.
Correct Answer: atoms
Q3.
Which of the following are required for the combustion of a fuel?
Correct answer: source of heat
Correct answer: oxygen
carbon dioxide
water
Q4.
Which of the following equations shows the complete combustion of charcoal (carbon)?
Correct answer: C + O₂ → CO₂
C + O₂ → CO₂ + H₂O
C + CO₂ → H₂O
C + H₂O → CO₂
Q5.
Which of the following are examples of non-renewable fuels?
Correct answer: coal
Correct answer: crude oil
wood
wind
Q6.
What are the products of this complete combustion: CH₄ + O₂ → ________ + ________
Correct answer: carbon dioxide
Correct answer: water
hydrogen
oxygen

6 Questions

Q1.
Match the following terms to the correct definitions.
Correct Answer:electric generator,like a motor in reverse, it generates electricity when pushed round
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like a motor in reverse, it generates electricity when pushed round

Correct Answer:fuel,a substance that is burned for heating
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a substance that is burned for heating

Correct Answer:pollutant,a substance that can harm living organisms in the environment
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a substance that can harm living organisms in the environment

Correct Answer:greenhouse gas,gas in the atmosphere that keep it warmer than it would be without it
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gas in the atmosphere that keep it warmer than it would be without it

Q2.
Non-renewable fuels have many advantages and disadvantages over other fuels. Which of the following are examples of advantages of using non-renewable fuels?
They exist in limited amounts and could eventually run out.
Correct answer: They release a lot of energy when burned.
Correct answer: They can easily be found to buy.
They release carbon dioxide when they are burned.
Q3.
Where are electric generators not found?
inside wind turbines
inside dams
Correct answer: inside solar panels
inside power stations
Q4.
Sort the following statements into the correct order to explain how electricity is generated in a power station. The sequence should start with 'a fuel is burned'.
1 - a fuel is burned
2 - water is heated into steam
3 - the steam expands and is pushed forwards
4 - the moving steam pushes a turbine round at high speed
5 - the spinning turbine turns a generator
6 - the generator produces electricity
Q5.
Carbon dioxide, sulfur dioxide and carbon particulates are all examples of .
Correct Answer: pollutants, pollution, air pollution, air pollutants, pollutant
Q6.
Which of these is not burned in power stations in the UK?
Correct answer: coal
natural gas
oil
rubbish
wood