space

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Across
  1. 2. a small rock in space
  2. 5. Large irregular shaped rock
  3. 6. A Meteoroid in earth's atmosphere
  4. 7. the belt where all the comets are
Down
  1. 1. a belt that hold asteroids
  2. 3. A meteor that hits earth
  3. 4. a rock made of ice, dust and gas