Moon, Eclipses, Tides

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Across
  1. 2. tide a tide just after the first or third quarters of the moon when there is the least difference between high and low water.
  2. 6. time required for Earth to rotate once on its axis
  3. 9. The moon is a quarter of the way around the Earth. You can see the right half of the moon.
  4. 10. describes phases following a new moon, as more of the Moon's lighted side becomes visible
  5. 11. moon phase when the entire side facing Earth is illuminated.
  6. 12. Imaginary line that runs from North Pole to South Pole
  7. 13. the curved sickle shape of the waxing or waning moon.
  8. 14. time required for Earth to revolve around the sun
  9. 15. The partial or total blocking of one object in space by another
  10. 16. to move around another object
  11. 18. Dates during the Earth's revolution around the sun when the North Pole / South Pole are tilted directly at the sun. Longest/shortest days of the year depending on which hemisphere is tilted towards/away
  12. 20. Moon phase that occurs when the Moon is between Earth and the Sun, at which point the Moon cannot be seen because its lighted half is facing the Sun and its dark side faces Earth.
Down
  1. 1. a tide just after a new or full moon, when there is the greatest difference between high and low water.
  2. 3. to spin on an axis
  3. 4. Moon phase in which more than half of the Moon appears to be illuminated.
  4. 5. Dates during the Earth's revolution around the sun when day/night are approximately equal (12 hours each). Official start of spring and fall.
  5. 7. an eclipse in which the moon appears darkened as it passes into the earth's shadow.
  6. 8. Left half of the disk is illuminated, and the cycle is in the waning phase.
  7. 17. The periodic rise and fall of the level of water in the ocean
  8. 19. becoming less bright, intense, or strong