Pluto Puzzles

4. This moon is named after the ferryman who brought new souls to the Underworld.
6. Charon is half the size of ____.
8. This moon is named after a many-headed monster that can regrow two heads for every one lost.
12. Pluto's atmosphere ____ closer to the sun.
14. Icy cloud around solar system
15. Pluto's atmosphere ____ further from the sun.
19. Charon was discovered by astronomer ____.
20. Pluto's orbit is tilted ____ degrees.
21. Pluto's atmosphere is made of mainly ____ and ____ gases.
22. 4th officially recognized dwarf planet.
25. Pluto's orbit is more ___ than the other planets.
26. Pluto is a ____ planet.
27. Ring of dwarf planets, moons and comets past Neptune
28. Nix and Hydra were discovered by a ___ space telescope team.
29. This moon is named after the river that separates the Underworld and the world of the living.
30. Pluto was demoted in 200_ (Spell it out).

1. Pluto was demoted because it did not clear its ____.
2. Charon is ____ locked onto Pluto.
3. 3rd officially recognized dwarf planet.
5. 5th officially recognized dwarf planet.
6. If Earth is a nickel, Pluto is a ____.
7. Nix orbits around Pluto every ____ days.
9. Direction of Pluto's rotation
10. Pluto is half the width of the ____.
11. Pluto was discovered in 1930 by astronomer ____.
13. The naming system of Pluto and its moons was begun by a young girl named ____.
16. Pluto’s surface area is almost equal to that of ____.
17. 2nd officially recognized dwarf planet.
18. This moon is named after the goddess of the night.
23. This moon is named after the three-headed canine guardian of the Underworld.
24. Greek god of the Underworld
27. Pluto’s average temperature is 37 ____ (the unit).