Seasons, moons and tides, oh my!

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Across
  1. 4. Describes the phases following a new moon where more of the moon is illuminated by the sun
  2. 8. The ________ side of the moon always faces the Earth
  3. 9. The moon is a _________ of the Earth- an object in space that orbits around another object
  4. 11. During this phase we cannot see the moon from earth because the sunlit side faces away from us
  5. 13. During this phase the entire sunlit side of the moon faces the earth
  6. 14. When the moon passes directly between the Earth and sun, casting a shadow in the Earth
  7. 15. When the moon appears smaller than half but more than a new moon
  8. 17. When the moon appears larger than half but less than full
  9. 18. Describes the phases following a full moon where less of the moon is illuminated by the sun
Down
  1. 1. The path an object takes as it revolves around another object
  2. 2. The different shapes of the moon you see from Earth
  3. 3. The Earth rotates on it's _________, which is the imaginary line that passes through Earth's center and the North and South poles
  4. 5. The moon's _________ causes tides
  5. 6. The days of the year when there is equal amounts of sunlight and darkness
  6. 7. The moon __________ around the Earth
  7. 10. When the moon is directly behind the Earth and Earth blocks sunlight from illuminating the moon
  8. 12. The longest or shortest day in the year for sunlight; When one hemisphere is tilted completely towards or away from the sun
  9. 16. The light from this illuminates the moon