Seasons and Tides

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Across
  1. 3. ____ tides cause the least amount of difference between the high and low tides
  2. 5. A ________ is marked by the longest or shortest day of the year
  3. 8. ________ is when an object spins around it's center
  4. 9. When an object revolves around another
  5. 10. The imaginary line that runs through both of Earth's poles
  6. 11. The ____'s gravitational pull causes tides
  7. 12. The two halves of the Earth separated by the equator
Down
  1. 1. The imaginary line separating the north and south hemispheres
  2. 2. An _______ is marked by equal day and night
  3. 4. The path an object takes as it revolves around another object
  4. 6. _____ tides cause the greatest amount of difference between the high and low tides
  5. 7. The partial or total blocking of light of one object by another