Rotation/Revolution,Seasons, Solstice/Equinox

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Across
  1. 1. moon the phase of the moon in which its whole disk is illuminated
  2. 4. gibbous more than half illuminated
  3. 5. quarter one-half illuminated by the sun
  4. 10. axis location and tilt of Earth during each season
  5. 11. summer and winter happening
  6. 12. tides a tide just after a new or full moon, when there is the greatest difference between high and low water
  7. 13. he movement of one object around a center or another object, a forceful overthrow of a government by the people or any sudden or grand change.
  8. 17. cresent sometimes called an old moon, is defined to occur when the Moon is nearly, but not precisely, on a line with the Earth and Sun
Down
  1. 2. cycle changes every 30 days
  2. 3. a large fraction of the moon's day side is facing our way
  3. 6. resulting from the earth's changing position with regard to the sun.
  4. 7. the process or act of turning or circling around something
  5. 8. the curved sickle shape of the waxing or waning moon
  6. 9. quarter one-half illuminated by the sun
  7. 14. spring and fall happening
  8. 15. gravitational attraction of the moon
  9. 16. moon the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent
  10. 18. tide a tide just after the first or third quarters of the moon when there is the least difference between high and low water