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Lesson 2 Test Review

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    Gravity, Planets, Moons and Space Objects
  •   Study   Slideshow
  • When a meteor travels through the earth's atmosphere and reaches the earth's surface, it's called...
    a meteorite
  •  20
  • This space object is known as a "dirty snowball."
    comet
  •  15
  • What space object is made of rock and ice and originates in the Kuiper Belt?
    Comet
  •  20
  • Is it possible for a dwarf planet to have its own moon?
    yes
  •  15
  • What do the four inner planets all have in common?
    They all have rocky, solid surfaces.
  •  25
  • What do the four outer planets have in common?
    They are all gaseous.
  •  25
  • Why are the four outer planets called "The Gas Giants?"
    They are made primarily of gas.
  •  20
  • Which planet is the largest?
    Jupiter
  •  15
  • Which planet is the smallest?
    Mercury
  •  15
  • Which planet is the hottest?
    Venus
  •  15
  • Why is Venus the hottest?
    the thick atmosphere traps the heat like a blanket.
  •  25
  • Why do the sun and the moon appear to be the same size?
    The moon is so much closer to earth than the sun
  •  20
  • Which can be bigger, an asteroid or a meteor?
    Asteroid
  •  15
  • Which can be bigger, an asteroid or a meteor?
    Asteroid
  •  15
  • Which famous astronomer discovered the four largest moons of Jupiter?
    Galileo Galilee
  •  25
  • Is it possible for a planet to have more than one moon?
    yes!
  •  10