Space Rocks

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Across
  1. 4. A chunk of an asteroid or comet that is
  2. 10. The tail of a comet that always points away
  3. 11. The tail of a comet that has dust
  4. 12. A meteor that does not burn up all the way,
  5. 13. Where asteroids come from
  6. 14. in the Earth's atmosphere
Down
  1. 1. A giant space rock
  2. 2. Where comets come from with a "k"
  3. 3. the sun
  4. 5. The dust surrounding a comet
  5. 6. The center of a comet
  6. 7. Where comets come from with a "o"
  7. 8. A giant space rock made of dust and ice
  8. 9. hits the earth
  9. 12. A tiny asteroid