Solar System Crossword Puzzle

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Across
  1. 2. To move in an orbit or circle around something
  2. 5. Having to do with the Sun
  3. 9. A piece of stone or metal from space that falls to Earth's surface
  4. 12. a rocky space object of varying size
  5. 13. The third closest planet to the Sun
  6. 15. This planet tilts over so far on its axis that it rotates on its side
  7. 19. An object that moves around a larger object
  8. 20. Astronauts often live on the International Space _________
  9. 21. The huge space which contains all of the matter and energy in existence
  10. 22. When the Sun blocks the moon, or the moon blocks the Sun
Down
  1. 1. A big ball of dirty ice and snow in outer space
  2. 3. This planet is sometimes called the evening star and is the closest planet to Earth
  3. 4. The most popular Canadian astronaut
  4. 6. This planet has a moon called Triton
  5. 7. Iron in the soil gives this planet its red color
  6. 8. The path followed by an object in space as it goes around another object
  7. 9. The second smallest planet in our solar system
  8. 10. This planet is surrounded by over 1000 rings made of ice and dust
  9. 11. This planet is so large that all of the other planets could fit inside it
  10. 14. To turn around a centre point
  11. 16. All the gases which surround a star or a planet
  12. 17. The smallest planet (no longer considered a planet)
  13. 18. Earth has one of these