Solar System

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Across
  1. 2. An icy space object that forms a tail when it passes near the Sun
  2. 4. A chunk or rock or dust in space
  3. 8. A piece of rock that has fallen to the ground from outer space
  4. 9. Nicknamed the "Red Planet"
  5. 11. A region beyond Neptune containing many meteoroids and comets
  6. 12. The outer planets are made up of ...
  7. 14. All planets are located in the ...
  8. 16. A large space rock orbiting the Sun
  9. 18. The largest planet
  10. 19. The hottest planet in the Solar System
  11. 20. This planet is farthest away from the Sun
Down
  1. 1. A space rock that enters Earth's atmosphere
  2. 3. Earth rotates on an ....
  3. 5. A sphere of meteoroids and comets far beyond Pluto
  4. 6. The smallest planet
  5. 7. All 8 planets ____________ around the Sun
  6. 10. This planet is tilted on its side
  7. 13. A region between Mars and Jupiter where many small and large asteroids are found
  8. 15. The only planet known to support life
  9. 17. The sixth planet from the Sun