QUIZ - 3.12.13

1. What are Jovian planets made of?
• Jovian planets, like Jupiter & Saturn, are made mostly of H and He gas. Uranus & Neptune are mostly made of H compounds. 
2. What are Jovian planets like on the inside?
• On the inside, Jovian planets have layered interiors with very high pressure and cores made of rock, metals, and hydrogen compounds. The very high pressure in Jupiter & Saturn can produce metallic hydrogen.
3. What is the weather like on Jovian planets?
• On Jovian planets, the weather itself contains strong storms and winds. There are also multiple cloud layers that determine the color of the Jovian planets.
4. What kinds of moons orbit the Jovian planets?
• Moons of many sizes orbit the Jovian planets. The level of geological activity depends on the size.
5. Why are Jupiter's Galilean moons geologically active?
• Jupiter's Galilean moons are geologically active due to the drive from the tidal heating. This then leads to Io's volcanoes and ice geology on other moons.
6. What geological activity do we see on Titan and other moons?
• The geological activity we see on Titan is that the only moon with a thick atmosphere. Many other icy moons show signs of geological activity.
7. Why are Jovian moons more geologically active than small rocky planets?
• Jovian moons are more geologically active than small rocky planets because the ice melts and deforms at lower temperatures, enabling tidal heating to drive activity.
8. What are Saturn's rings like?
• Saturn's rings are made up of countless individual ice particles and are extremely thin with many gaps.
9. Why do the Jovian planets have rings?
• Jovian planets have rings because the ring systems of the Jovian planets are much fainter with smaller, darker, less numerous particles. The ring particles are probably debris from moons.
10. Who predicted volcanoes on Io?
• Stan Peale, Patrick Cassen, and R.T. Reynolds were the three gentleman that predicted volcanoes on Io.