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The Cycle of Day and Night

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  • The spinning of a celestial body, such as a planet, around an axis
    rotation
  • Earth rotates once every 24 hours. What would happen if Earth rotated faster?
    Each day would be shorter
  • Rotation of Earth on its axis causes ___________.
    day and night
  • The orbiting of an object around another object
    revolution
  • Why do we have a day that is 24 hours long?
    It takes 24 hours for the Earth to rotate once.
  • True or False: Earth’s revolution around the Sun is what gives us day and night.
    False
  • What term does this picture illustrate?
    revolution
  • What term does this picture illustrate?
    rotation
  • True or False: The sun rises in the east and sets in the west.
    True
  • True or False: When we experience daytime, our part of Earth is facing the sun.
    True
  • What would happen if Earth took longer than 24 hours to rotate on its axis?
    As Earth spins slower, the length of one cycle of day and night will increase.
  • An imaginary line that runs through Earth from the South Pole to the North Pole
    axis
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