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