Solar System creation

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Across
  1. 4. Early large body
  2. 5. Smash/impact
  3. 8. Small building block
  4. 11. Sticking together
  5. 12. Fine particles
  6. 13. Easily vaporized__
  7. 15. Flat ring
Down
  1. 1. Gas/dust cloud
  2. 2. Icy body with tail
  3. 3. Early disk adjective
  4. 6. Small rocky body
  5. 7. State of matter: ___
  6. 9. Pulling force
  7. 10. Sun-like body
  8. 14. Path around