Space

12345678910
Across
  1. 4. The earth ______ on it's axis.
  2. 5. smallest planet
  3. 6. planets circle the earth
  4. 9. largest planet
  5. 10. The shortened name of the international space station
Down
  1. 1. The further away from the sun, the _______ it takes to orbit the sun.
  2. 2. scientist who used a telescope to support the heliocentric model
  3. 3. planets circle the sun
  4. 7. the only planet in the solar system on which life is known to exist
  5. 8. the star at the center of our solar system that all planets rotate around