crossword sun moon earth

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Across
  1. 2. a mixture of gases that surrounds the earth
  2. 7. the sun is a ____
  3. 10. what a planet is made of
  4. 12. earth's natural satellite
  5. 14. a group of planets and other bodies that revolve around a star
  6. 15. a object that spins around a larger object
  7. 16. has craters
  8. 17. 8 ______ in our solar system
  9. 19. round shape
Down
  1. 1. any natural feature of the Earth's surface, such as a hill, a lake, or a beach
  2. 3. similar to orbit
  3. 4. _____ has life
  4. 5. a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity
  5. 6. a star
  6. 8. the action or process of rotating on or as if on an axis or center
  7. 9. the sun is 10,000 F it is so ___
  8. 11. a repeating path that one object in space takes around another one
  9. 12. a piece of rock or metal that is burning very bright when it enters the Earth's atmosphere from space
  10. 13. the sun is made of ___
  11. 18. the sun is a _____ source