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4A2 Unit 5 Water and Wind Power

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  • 91. What can eolic energy replace?
    oil and gasoline.
  • 91. How do modern day windmills produce energy/electricity?
    The wind pushes the blades and makes the wheel turn. The turning wheel produces energy. The energy is used to produce electricity.
  • Page 88. How do dam generators make electricity?
    Dam water is sent through pipes to water turbines below the ground, the falling water turns the turbines. The water in the turbines run a generator.
  • How did ancient Egyptians use wind to their benefit?
    They put a sail on their boats. The sail caught the wind and helped move the boats along the Nile River.
  • What is another word for wind energy?
    Eolic energy
  • 89. Name two examples of strong winds.
    Tornadoes and hurricanes.
  • Name 2 renewable energy resources.
    Water and wind power
  • Page 89. Explain wind.
    Moving air.
  • 91. Can you describe a modern windmill?
    A typical modern windmill has flat blades on a wheel.
  • Page 90. What did people use windmills for long ago?
    People used windmills to pump water or grind grain.
  • Name 6 objects in your house that use electricity.
    Any 6 objects.
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