Quiz
1. What are jovian planets made of?
Jupiter and Saturn are mostly made
of H and He gas. Uranus and
Neptune are mostly made of H compounds.
2. What are jovian planets like on the inside?
They have layered
interiors with very high pressure and cores made of rock, metals, and hydrogen
compounds. Very high pressure in Jupiter and Saturn can produce metallic
hydrogen.
3. What is the weather like on jovian planets?
Multiple cloud
layers determine the colors of jovian planets. All have strong storms and
winds.
4. What kinds of moons orbit the jovian planets?
Moons of many sizes.
Level of geological activity depends on size.
5.
Why are Jupiter's Galilean moons
geologically active?
Tidal heating
drives activity, leading to Io’s volcanoes and ice geology on other moons.
6.
What geological activity do we see on
Titan and other moons?
Titan is 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?
Ice melts and
deforms at lower temperatures, enabling tidal heating to drive activity.
8.
What are Saturn's rings like?
They are made up of
countless individual ice particles. They are extremely thin with many gaps.
9.
Why do the jovian planets have rings?
Ring systems of
other jovian planets are much fainter with smaller, darker, less numerous
particles.
Ring particles are
probably debris from moons.
10.
Who predicted
volcanoes on Io?
Io is the
most volcanically active body in the solar system. Tidal heating io is squished
and stretching as it orbits Jupiter.
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Good!
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