Eclipse

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Across
  1. 2. it orbits the Earth
  2. 3. occurs when one object blocks your view of another object
  3. 7. moon's shadow
  4. 8. third planet from the sun
Down
  1. 1. projector it can be used to look at solar eclipse
  2. 4. eclipse when the Moon passes directly behind the Earth into its shadow
  3. 5. eclipse when the moon passes in front of the sun and then casts a shadow on the Earth
  4. 6. center of the solar system