Jupiter's Moons

Question 1

The second biggest of Jupiter's moons is _____

Accepted Answer

Callisto

Question 2

Which moon likely has everything it needs to spawn life?

Accepted Answer

Europa

Question 3

The interiors of Ganymede, Io, and Europa are kept warm by _____

Accepted Answer

tidal flexing

Question 4

All of Jupiter's moons _____

Accepted Answer

are tidally locked to Jupiter

Question 5

Which moon is the most volcanic object in the entire solar system?

Accepted Answer

Io

Question 6

In what year did Galileo discover moons orbiting Jupiter?

Accepted Answer

1610

Question 7

Ganymede is crisscrossed with large _____

Accepted Answer

grooves

Question 8

How does Europa, Jupiter's fourth biggest moon, compare in size to our own moon?

Accepted Answer

Europa is slightly smaller

Question 9

The distance from a star where liquid water can exist on a planet's surface is called the _____

Accepted Answer

habitable zone

Question 10

How many confirmed moons does Jupiter have?

Accepted Answer

67

Question 11

What is the name for "scientists who study the possibility of life in space"?

Accepted Answer

astrobiologists

Question 12

Which moon has an entire ocean of water sealed up under a solid crust of ice?

Accepted Answer

Europa

Question 13

Which moon is the smallest of the Gailean moons?

Accepted Answer

Europa

Question 14

How many of Jupiter's moons are referred to as "Galilean moons"?

Accepted Answer

four

Question 15

Ganymede, the largest moon in our solar system, is even bigger than the planet _____

Accepted Answer

Mercury

Question 16

Ganymede is mostly rock and ice, but it probably has a liquid _____ core

Accepted Answer

iron

Question 17

How does Io, Jupiter's third biggest moon, compare in size to our own moon?

Accepted Answer

Io is slightly bigger

Question 18

The biggest of Jupiter's moons is _____

Accepted Answer

Ganymede

Question 19

When a moon orbits the planet backwards relative to the others, it's called a _____

Accepted Answer

retrograde orbit

Question 20

The surface of Callisto is mostly _____

Accepted Answer

ice

Questions 20