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Unlock 4 Unit 6: Energy

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  • solar power
    solar energy
  •  15
  • source
    where something comes from
  •  15
  • wind turbine
    a machine with long parts at the top that are turned by the wind, used to make electricity
  •  15
  • capacity
    the total amount that can be contained or produced
  •  15
  • challenge
    something that is difficult and that tests someone's ability or determination
  •  15
  • complex
    involving a lot of different but related parts
  •  15
  • dam
    a wall built across a river that stops the river's flow and collects the water, especially to make a reservoir that provides water for an area
  •  15
  • element
    a part of something
  •  15
  • energy-efficient
    using little electricity, gas, etc.
  •  15
  • environmentally friendly
    not harmful to the environment
  •  15
  • experimental
    relating to tests, especially scientific ones
  •  15
  • function
    the purpose of something or the particular responsibility of someone
  •  15
  • generation
    the production of energy in a particular form
  •  15
  • generator
    a machine that produces electricity
  •  15
  • limitation
    a rule or situation that limits something
  •  15
  • maintenance
    the work needed to keep a road, building, machine, etc. in good condition
  •  15