Planetary science crossword

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Across
  1. 3. the blocking of sunlight to the moon
  2. 7. 1/4 of the moon can be seen
  3. 8. entire side facing the earth is illuminated
  4. 9. visible surface of the moon decreases
  5. 11. moon passes directly between the sun and Earth
Down
  1. 1. half of the moon's lit side is visible
  2. 2. the changing appearances of the moon
  3. 4. a thin curved shape
  4. 5. visible surface of the moon increases
  5. 6. more than half of the moon seems to be illuminated
  6. 10. moon is between earth and the sun