Our Place in Space

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Across
  1. 3. the Sun and the group of objects that move around it
  2. 6. the star at the center of our solar system
  3. 7. the time from sun up to sun down when the Earth has light
  4. 8. the time from sun down to sun up when the Earth is dark
  5. 9. the planet we live on
Down
  1. 1. to move around a star or planet
  2. 2. a large, round object that moves around the Sun or another star
  3. 4. the area past Earth's atmosphere
  4. 5. a big ball of dirt and rock that moves around the Earth
  5. 6. an object in space that makes its own heat and light