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Across
  1. 2. Moons are always ____ than the planets they orbits.
  2. 4. Mercury is smaller planet in our ___ system.
  3. 6. The Sun is the closest star to ____.
  4. 7. Venus spins in the ____ direction to Earth.
  5. 9. Planats can be ____ of rock,gas or ice.
  6. 10. The star the most importante.
  7. 11. Neptune is the ___ planet away from the sun.
  8. 13. Earth is the only ___ that we known of where things can live.
  9. 14. Asteroids can be odd ____.
Down
  1. 1. The Universe is ____ years old.
  2. 2. The ____ of the Sun is 5600 degree celsius.
  3. 3. Uranus is the ____ planet in our solar system.
  4. 5. ___ is the largest planet in the solar system.
  5. 8. The moon orbits the Earth every ___.
  6. 12. Mars looks ___ because it has something called iron oxide on its surface.