Moon Phases

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Across
  1. 4. eclipse when the Moon is completely dark
  2. 5. a rocky sphere that travels around a planet
  3. 7. system the sun, the planets that orbit the sun, and other objects that orbit the sun
  4. 9. the shape of the illuminated part of the Moon as it appears from Earth
  5. 10. the star that is the main source of light at the center of our solar system
  6. 11. the nearly circular path a smaller object (like the Moon) travels around a larger object (like Earth)
  7. 12. the amount of time it takes for a planet to complete one orbit around a star or stars
Down
  1. 1. the amount of time it takes for the moon to complete one orbit around the Earth
  2. 2. to shine light on an object and make it visible
  3. 3. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
  4. 6. the border between light and dark on the Moon
  5. 8. something we observe to be similar over and over again
  6. 10. the relative size of things