Jupiter and Its Moons Quiz

Which is the largest planet in our Solar System?

• Saturn

• Jupiter

• Uranus

• Earth

• Neptune

Which statement about Jupiter is true?

• It may become a star in about a billion years.

• It has a solid core of ice about 1,000 km under the visible surface.

• It is the least dense of the Giant Planets.

• It is more massive than all other planets combined.

Astronomers think that the inner core of Jupiter is composed mainly of _________.

• hydrogen

• helium

• uranium

• rock and iron

• water

Hydrogen is the most abundant element in Jupiter's atmosphere.

• true

• false

Why will astronauts probably never set foot on any of the Giant Planets?

• These planets have no solid surfaces for them to land on.

• Their clouds are so hot that any spacecraft getting near it would burn up.

• Their gravitational attraction is so weak that they would float off.

• Astronauts will land on the Giant Planets—the idea is perfectly reasonable.

Which satellite has lakes of liquid methane near its poles?

• Ganymede

• Io

• Miranda

• Triton

• Titan

The Great Red Spot on Jupiter is _________.

• a large rising cloud of gas

• a giant vortex (storm) that has persisted for over 300 years

• a planetesimal impact site

• a large tornado sweeping the planet from north to south

The rings of Jupiter consist primarily of _________.

• small particles

• boulder-size rocks

• solid rings

• hydrogen and helium

What type of dunes exist on Titan?

• Sand dunes

• Dust dunes

• Ice crystal dunes

• We have not discovered any dunes on Titan.

The rings of Saturn consist primarily of ________.

• hydrogen and helium

• silicate rocks

• water ice

• methane and ammonia