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Unit 4 Review
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    Unit 4 Review
  •   Study   Slideshow
  • A solar panel _______ sunlight into energy.
    converts
  •  10
  • Windmills can _______.
    generate electricity
  •  15
  • The _______ of the storm knocks over the tree.
    power
  •  20
  • Water is _______ in the desert.
    scarce
  •  15
  • Wind is a _______ resource.
    renewable
  •  15
  • This is how we get _______.
    electricity
  •  20
  • _______ means saving or protecting something.
    Conservation
  •  5
  • A _______ is something that people need and use.
    resource
  •  15
  • To _______ is to move freely.
    flow
  •  15
  • When something is _______, it is ready to take.
    available
  •  25
  • When something is _______, it is happening now.
    current
  •  5
  • This is a _______ rock formation.
    natural
  •  15
  • This is a _______.
    landscape
  •  15
  • A _______ is a great power in nature.
    force
  •  25
  • A _______ is something helpful.
    benefit
  •  10
  • To _______two things, think about how they are connected.
    relate
  •  15