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Unit 4 Science Review

  • Game Code: 1498923
  •  English    21     Public
    Space Systems
  •   Study   Slideshow
  • Which star is closest to Earth?
    The Sun
  •  15
  • True or False: The Sun is a planet.
    FALSE
  •  5
  • TRUE or FALSE: Our Sun orbits around the Earth every day.
    FALSE
  •  5
  • TRUE OR FALSE: The Sun is the center of our Solar System.
    TRUE
  •  5
  • Why do stars rise and set in the nigh sky?
    The Earth rotates
  •  20
  • Define what a shadow is.
    It is a dark area that results when light is blocked.
  •  10
  • Why do the length and direction of shadows change throughout the day?
    The sun appears "lower" and "higher" in the sky.
  •  15
  • Which time of day would cause the shortest shadow?
    Noon (12:00)
  •  15
  • What determines the length of a day?
    Earth's rotation
  •  15
  • One Earth rotation is ___________ long.
    24 hours
  •  15
  • The length of one Earth revolution is ______ long.
    365 days or 1 year
  •  15
  • Why do we experience day and night?
    Earth rotating on its axis
  •  15
  • Why does the appearance of our moon change?
    The moon orbits or revolves around the Earth
  •  20
  • About how long is one lunar cycle?
    28 days
  •  15
  • What force pulls objects towards Earth?
    Gravity
  •  5
  • Which planet is largest?
    Jupiter
  •  10
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