6th Grade Earth's systems Vocabulary

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Across
  1. 4. millions of stars grouped together in space
  2. 6. amount of matter in an object
  3. 7. planet makes a complete spin on its axis
  4. 10. one object circles another in space
  5. 11. object that revolves around another object in space
  6. 12. used to compare the size of objects or distance between objects
Down
  1. 1. group of stars forming a fixed pattern in the sky
  2. 2. attraction of one object to another
  3. 3. objects made of ice, gases, and dust that orbit the sun
  4. 5. irregular pieces of rock moving through space
  5. 8. the path that a planet travels as it goes around the sun
  6. 9. push or pull