Astronomy 101 Chapter 12 Crossword

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Across
  1. 4. The crater from the impact that killed the dinosaurs is located in this country
  2. 5. Part of comet pushed by solar wind
  3. 9. Shooting star
  4. 11. These meteorites are unchanged from when the solar system formed
  5. 14. Another name for a comet
  6. 15. Part of comet pushed by sunlight
  7. 17. The impact that killed the dinosaurs left a worldwide layer of this
  8. 18. A dwarf planet
  9. 19. An impact killed them
  10. 20. Rock from space that has landed on Earth
Down
  1. 1. Nearby home of comets
  2. 2. Icy leftover from formation of the solar system
  3. 3. Moon of Pluto
  4. 6. Comets cause these events
  5. 7. Center of a comet
  6. 8. Far away home of comets
  7. 10. What we call a catastrophic impact event
  8. 12. Rocky leftover from formation of solar system
  9. 13. Pluto is a _______________
  10. 16. Younger meteorites