Day and Night

Summer_Sun_Winter_SunLearning Target: I can demonstrate that Earth rotates on its axis once every 24 hours causing the day/night cycle and the apparent movement of the sun across the sky.

Think about these questions today as we review what we know about the Sun, moon, and Earth:

  • What causes day and night on Earth?
  • How long is one day?
  • What is happening on the other side of the Earth while we experience day?
  • Do we always have the same number of daylight hours?
  • Why does the Sun appear to move across the sky?  Is it really moving?
  • How does Earth’s movement cause day and night cycles?


  • axis
  • rotate
  • rotation
  • Northern hemisphere
  • Southern hemisphere
  • equator
  • shadow





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