Earth, Moon and Sun Glossary

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