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WorksheetsJupiter's Moons
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
How many confirmed moons does Jupiter have?
a)
27
b)
67
c)
270
d)
670
2.
In what year did Galileo discover moons orbiting Jupiter?
a)
1610
b)
1640
c)
1670
d)
1710
3.
How many of Jupiter's moons are referred to as "Galilean moons"?
a)
two
b)
three
c)
four
d)
five
4.
The biggest of Jupiter's moons is _____
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
5.
Ganymede, the largest moon in our solar system, is even bigger than the planet _____
a)
Mercury
b)
Venus
c)
Mars
d)
Earth
6.
Ganymede is mostly rock and ice, but it probably has a liquid _____ core
a)
iron
b)
hydrogen
c)
helium
d)
nickel
7.
Ganymede is crisscrossed with large _____
a)
grooves
b)
mountain ranges
c)
craters
d)
canals
8.
The second biggest of Jupiter's moons is _____
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
9.
The surface of Callisto is mostly _____
a)
ice
b)
dust
c)
iron oxide
d)
volcanoes
10.
How does Io, Jupiter's third biggest moon, compare in size to our own moon?
a)
Io is much smaller
b)
Io is slightly smaller
c)
Io is slightly bigger
d)
Io is much bigger
11.
Which moon is the most volcanic object in the entire solar system?
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
12.
Which moon is the smallest of the Gailean moons?
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
13.
How does Europa, Jupiter's fourth biggest moon, compare in size to our own moon?
a)
Europa is much smaller
b)
Europa is slightly smaller
c)
Europa is slightly bigger
d)
Europa is much bigger
14.
Which moon has an entire ocean of water sealed up under a solid crust of ice?
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
15.
The interiors of Ganymede, Io, and Europa are kept warm by _____
a)
nuclear fision
b)
nuclear fusion
c)
tidal flexing
d)
volcanic activity
16.
Which moon likely has everything it needs to spawn life?
a)
Io
b)
Europa
c)
Ganymede
d)
Callisto
17.
What is the name for "scientists who study the possibility of life in space"?
a)
cosmologists
b)
exophysiologists
c)
astrobiologists
d)
paleontologists
18.
The distance from a star where liquid water can exist on a planet's surface is called the _____
a)
aqua-region
b)
life area
c)
habitable zone
d)
bio-space
19.
All of Jupiter's moons _____
a)
are tidally locked to Jupiter
b)
have liquid water
c)
are covered partially in ice
d)
have volcanic activity
20.
When a moon orbits the planet backwards relative to the others, it's called a _____
a)
retrograde orbit
b)
heliocentric orbit
c)
geosynchronous orbit
d)
prograde orbit
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