Solar System

1. The ____________ ____________ _____________, is twice as wide as Earth with winds peaking at about 400 mph
3. One year here lasts 682 Earth days and has two satellites
5. The largest satellite of Saturn
10. One year here last 248 Earth years
11. Planets that are small and rocky—Mercury, Venus, Earth, and Mars
12. A cloud of gas and/or dust in space
13. One day here lasts 243 Earth days because the planet spins backwards
16. ___________ is the most obvious difference between the terrestrial and Jovian planets.
17. One day here lasts 10 hours and 33 minutes on Earth, and one year here is 25 Earth years
19. The substances that make up the planets are divided into three groups: gases, rocks, and __________.

2. The Jovian planets have very thick __________ of hydrogen, helium, methane, and ammonia.
4. One year here lasts 88 Earth days and has no satellites
5. According to the nebular________, the sun and planets formed from a rotating disk of dust and gases.
6. One year here is 165 Earth years, and it has 14 satellites
7. Small, irregularly shaped bodies formed by colliding matter
8. Unlikely Saturn’s icy rings full of large icy and rock chunks, they are composed of small ____________ ____________.
9. The planet that rotates on its sides
14. Mercury has the greatest _____________ extremes of any planet.
15. The huge gas giants—Jupiter, Saturn, Uranus, and Neptune
18. __________ has a mass that is 2 1/2 times greater than the mass of all the other planets and moons combined.