sun and moon vocabulary

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Across
  1. 5. when the moon is completely dark
  2. 8. moon a moon phase that looks like more than a half a circle from earth
  3. 9. a moon phase that looks like a whole circle from earth
  4. 10. a moon phase in with the moon is not visible from earth
  5. 11. the border beetween light and dark on the moon
  6. 15. a moon phase that looks like less than half a circle
  7. 18. something we observe to be similar over and over again
  8. 19. a planet outside of our solar system
Down
  1. 1. to shine light on a object and make it visible
  2. 2. the amount of time it takes for a planet to complete one orbit around stars or star
  3. 3. a rocky sphere that travels around a planet
  4. 4. the shape of the illuminated part of the moon as it appears from earth
  5. 6. a moon phase that looks like a half circle from earth
  6. 7. the sun the planets that orbit the sun and other objects that orbit the sun
  7. 12. an object or diagram that helps us understand it by making it easier to see
  8. 13. a moon outside our solar system
  9. 14. the relative size of things
  10. 16. the star that is the main source of light at the center of our color system
  11. 17. the nearly circular path with a smaller object travels around larger object