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SOURCES OF ENERGY

  •  English    20     Public
    FOR GRADE 4
  •   Study   Slideshow
  • What is energy?
    Energy is the ability to do work.
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  • What is the main source of energy for Earth?
    The Sun
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  • What form of energy does the Sun give us?
    Light and heat energy.
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  • What are fossil fuels?
    Coal, oil, and natural gas
  •  20
  • How do we get energy from fossil fuels?
    By burning them.
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  • What do solar panels collect?
    Light energy from the Sun.
  •  20
  • What energy is produced by solar panels?
    Electrical energy.
  •  15
  • What does a generator produce?
    Electricity.
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  • What are alternative sources of energy?
    Wind, water, geothermal energy, atoms, and biofuels.
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  • What does a windmill use?
    Wind energy.
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  • What is geothermal energy?
    Heat from inside the Earth.
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  • What is nuclear energy?
    Energy stored in the centre of an atom.
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  • What are biofuels made from?
    Living matter.
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  • Are biofuels renewable?
    Yes, they are renewable.
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  • Give two examples of renewable energy.
    Solar energy and wind energy.
  •  20
  • Why should we conserve energy?
    Because some energy sources are limited.
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