Solar system crossword

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Across
  1. 3. Amount of moons on Earth (SPELLED WITH LETTERS)
  2. 4. Our solar system's dwarf planet
  3. 8. Has a "tail"
  4. 9. Second planet from the sun
  5. 11. The coldest planet
  6. 15. A model that proves the sun is the center of the solar system
  7. 16. Amount of moons on Mars (SPELLED WITH LETTERS)
  8. 17. Color of Neptune
  9. 19. The star that supports all life on Earth
  10. 20. Shines bright, made of gas
Down
  1. 1. Killed the dinosaurs
  2. 2. The last planet from the sun
  3. 5. Earth has one of these orbiting it
  4. 6. A model that shows that Earth is the center of the solar system
  5. 7. 5th planet from the sun
  6. 10. Closest planet to the sun
  7. 12. Color of Mars
  8. 13. Very famous for its rings
  9. 14. Mars' biggest moon
  10. 18. The planet we live in