Blue planet

1234567891011121314151617181920
Across
  1. 1. all the gases which surround a star or a planet
  2. 4. Closest planet to sun
  3. 6. four outermost planets in the solar system
  4. 9. Our sun and the objects that orbit around it
  5. 10. number of planets in our solar system
  6. 12. dwarf planet with two moons
  7. 14. Takes Earth 365 days to __ the sun
  8. 16. was the first person to walk on moon
  9. 19. Largest planet
  10. 20. Planet that rotates on its side
Down
  1. 2. Planet has compact rocky surface
  2. 3. Saturn, Jupiter, Uranus and Neptune have
  3. 5. planet with the brightest rings
  4. 7. found between Mars and Jupiter
  5. 8. Third planet from the sun
  6. 11. Largest object in solar system
  7. 13. To turn on an axis
  8. 15. Hottest planet
  9. 17. Known as the "Red Planet"
  10. 18. Furthest planet from the sun