THE SOLAR SYSTEM

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Across
  1. 5. the belt made of ice materials after Neptunes orbit
  2. 7. a planet made of helium and oxygen, gaseous
  3. 8. the seventh planet from the sun
  4. 12. the planet with giant ice particles
  5. 14. the study of space is called ______
  6. 15. natural satellites that orbit planets - Jupiter has the most
  7. 16. when a small rocky body hits and goes through the atmosphere
  8. 17. the name of our galaxy
  9. 18. the second planet from the sun
Down
  1. 1. what's left of a star at the end of its life cycle
  2. 2. the largest planet in the solar system
  3. 3. the planet closest to the sun and has the shortest orbit time
  4. 4. glowing balls of hot gas that go through a life cycle
  5. 6. cosmic body of gravity that even light cannot escape
  6. 9. small rocky body that floats in space
  7. 10. the star at the center of the solar system
  8. 11. a meteor that has hit the earths ground
  9. 13. the planet that has animals and plants as inhabitants
  10. 16. the fourth planet from the sun, the smallest