1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune
9. Pluto
10. has atmosphere
11. no atmosphere
12. Solar System
13. Size of planets (radius): Jupiter>Saturn>Uranus>Neptune>Earth>Venus>Mars>Mercury
14. Mass of planets (radius): Jupiter>Saturn>Neptune>Uranus>Earth>Venus>Mars>Mercury
15. Gas Giants
16. Rocky Planets