Moon Cycle

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Across
  1. 4. the amount of time it takes for a planet to complete one orbit around a star or stars
  2. 5. a moon phase in which the Moon is not visible from Earth
  3. 8. to shine light on an object
  4. 9. the border between light and dark on the Moon
  5. 10. helps us understand something by making it simpler
  6. 11. when the illuminated portion is getting bigger, as viewed from Earth
  7. 13. phase that looks like a full circle from Earth
Down
  1. 1. the relative size of things
  2. 2. the illuminated part of the Moon as seen from Earth
  3. 3. the nearly circular path a smaller object (like the Moon) travels around a larger object (like Earth)
  4. 6. when the illuminated portion is getting smaller, as viewed from Earth
  5. 7. a moon phase that looks like a half-circle from Earth
  6. 10. a rocky sphere that travels around a planet
  7. 12. phase that looks like more than half a circle