Solar System Crossword puzzle

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Across
  1. 3. Animals need this to live, In the lungs
  2. 4. What planet is red?
  3. 7. Where every solar system is and has a black hole in the center
  4. 9. A dwarf planet that is in the Kuiper belt
  5. 10. a Planet made of gas
  6. 12. What planet is the only planet with life?
  7. 14. A hole in space that absorbs things
  8. 16. A smaller version of a planet
  9. 20. a small body of matter from outer space that enters the earth's atmosphere
  10. 23. When a planet does a full rotation around the sun
  11. 25. term related to the moon
  12. 26. In the middle of the solar system and provides light
  13. 27. What planet is the 8th planet from the sun?
  14. 28. What keeps us on the ground
Down
  1. 1. The reason we have tides in the ocean
  2. 2. What planet has no atmosphere and is closest to the sun?
  3. 5. Earth has 5 layers of this
  4. 6. The ring around all the planets
  5. 8. Lengh of how far light travels in a year
  6. 11. A hole in space
  7. 13. When something rotates around something
  8. 15. Imaginary pole in the middle of a planet
  9. 17. a planet made of rock
  10. 18. The asteroids separating the gas giants from the terrestrial planets
  11. 19. What planet sits on its side?
  12. 21. What planet has rings?
  13. 22. What is the biggest planet in our solar system?
  14. 24. What planet is the hottest?
  15. 26. term related to the sun
  16. 29. a small rocky body orbiting the sun