Lunar cycles

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Across
  1. 2. moon is half-illuminated, and in the waxing phase
  2. 7. builds light on the moon
  3. 12. darkest inner part of the moon's shadow
  4. 13. what the moon does to the earth
  5. 14. what the moon does to the earth, and the earth does to the sun
  6. 16. amount of degrees the earth is tilted; causes the seasons
  7. 17. loses light on the moon
  8. 18. what does the moon affect on earth due to gravity?
  9. 19. when the moon is not visible in the night sky
Down
  1. 1. begging of summer and winter
  2. 3. moon is half-illuminated, and in the waning phase
  3. 4. the amount of time in between full moons
  4. 5. when the moon blocks the Sun's light and casts a shadow on the Earth
  5. 6. the amount of moon phases
  6. 8. the force that brings things together
  7. 9. when the Earth Moon and Sun form a 90-degree angle
  8. 10. when the moon shows the most light
  9. 11. formed from the debris left over from an impact between Earth & another celestial body
  10. 13. spinning in its place
  11. 15. takes approx 1 month or 27.3 days