Outer Planets

How does the mass of Jupiter compare with that of the other planets?

• It is twice as massive as all other planets combined

• It is slightly larger and more massive than Saturn

• It is about a tenth the mass of the Sun

• It is almost as massive as Saturn

How does the density of Jupiter compare to the terrestrial planets?

• It is denser than the Moon, but less dense than any of the others

• It is denser than all the terrestrial planets combined

• Its density is slightly less than Mercury, but more than Mars

• Its density is less than any terrestrial

Essentially, the Great Red Spot is

• Neptune's largest atmospheric feature

• a large cyclonic storm (hurricane)

• always located within 10 degrees of Jupiter's north pole

• composed primarily of iron oxide

The most striking "cloudmark" in Jupiter's atmosphere is the:

• Great Dark Spot

• Cassini Division

• Great Red Spot

• Brown Dwarf

What is thought to lie at the center of Jupiter?

• a hot sea of liquid metallic hydrogen

• a massive core of rocky materials with some iron mixed in

• a solid core of crystalline helium

• a fusion core like the Sun's, with hydrogen being turned into helium

Saturn is less dense than water

• True

• False

Saturn is the only planet with a ring system

• True

• False

If you could find a bathtub big enough for Saturn, the planet would:

• sink due to its metallic interior

• catch fire, as liquid sodium reacts with water

• Float.

• precipitate more helium

The atmosphere of Saturn is composed mostly of:

• hydrogen and helium

• methane and ammonia

• carbon dioxide and ethane

• hydrogen sulfide and ammonia

What is the space probe that is currently orbiting (actually, it’s mission ended in September, 2017) Saturn and is responsible for numerous discoveries of storms and weather patterns in Saturn's atmosphere called?

• Galileo

• New Horizons

• Messenger

• Cassini