Earth/Moon/Sun Glossary

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