Sperical Earth

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Across
  1. 2. third planet from Sun
  2. 3. the force that pulls 2 objects towards each other
  3. 4. the layer of gases that surround the Earth
  4. 7. the liquid water system on or in Earth
  5. 9. the frozen area around the North Pole
  6. 11. a cloud of dust and gas in space
  7. 12. center of our solar system
  8. 13. the amount of space an object occupies
Down
  1. 1. the amount of material in a given space
  2. 3. the rocks and rock-like structures of Earth
  3. 5. the frozen water on or in Earth
  4. 6. a ball shape with equal distance from center
  5. 8. all the life on or in Earth
  6. 10. the amount of material in an object