Earth and Sun

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Across
  1. 2. the tendency of a moving object to keep moving in a straight line
  2. 5. it take 24 of these to make one rotation of the Earth
  3. 7. a force of attraction, or pull, between any two objects
  4. 11. this is the hemisphere we live in
  5. 13. a straight line about which an object rotates
  6. 14. the Earth is closer to the sun during this season
  7. 15. when one side of the Earth is experiencing sunlight this is happening on the other side of the Earth
Down
  1. 1. one complete trip around the sun
  2. 3. a complete spin on the axis
  3. 4. the path objects take around another object
  4. 6. this season has longer days and shorter nights
  5. 8. the Earth is 91-94 million of these away from the sun
  6. 9. the solar system is 4 _____ miles of these from the Sun to Pluto
  7. 10. every 4 years the extra 6 hours are put together to make Feb. 29th
  8. 12. a nearly circular orbit (oval)