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WorksheetsComparing Planets
Total questions: 40
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
Which planet has the greatest size relative to Earth?
a)
Uranus
b)
Neptune
c)
Saturn
d)
Jupiter
2.
Which planet is not a terrestrial planet?
a)
Neptune
b)
Mars
c)
Earth
d)
Venus
3.
This planet has a very thick, toxic atmosphere.
a)
Mercury
b)
Venus
c)
Mars
d)
Saturn
4.
Like the Earth , this planet experiences auroras at the north and south poles.
a)
Saturn
b)
Uranus
c)
Jupiter
d)
Neptune
5.
A person weighs 120 pounds on Earth. How much would the person weigh on Mars?
a)
45.6
b)
.456
c)
4.56
d)
456
6.
Which two planets travel in retrograde motion?
a)
Venus and Mars
b)
Uranus and Neptune
c)
Venus and Uranus
d)
Earth and Mercury
7.
Which planet is covered with iron oxide dust giving it a red appearance?
a)
Mercury
b)
Venus
c)
Earth
d)
Mars
8.
Which planet has the fastest winds in the solar system?
a)
Earth
b)
Neptune
c)
Mars
d)
Saturn
9.
Which planet has huge canyons, volcanoes, and plains yet cannot support life?
a)
Venus
b)
Earth
c)
Mars
d)
Juptier
10.
A person weighs 200 pounds on Earth, what would they weigh on Jupiter?
a)
4.72
b)
472
c)
.472
d)
47.2
11.
Which planet has the coldest temperatures?
a)
Venus
b)
Neptune
c)
Uranus
d)
Mercury
12.
Which planet has the greatest density?
a)
Mercury
b)
Venus
c)
Earth
d)
Mars
13.
The asteroid belt is found between the inner and outer planets.
a)
True
b)
False
14.
Mercury, Venus, Neptune, and Uranus are inner planets.
a)
True
b)
False
15.
The Earth's atmosphere is divided into five layers.
a)
True
b)
False
16.
A __________ is a chunk of ice & dust that has a bright head & a long narrow tail.
a)
asteroid
b)
planet
c)
meteoroid
d)
comet
17.
The ______is between the orbits of Mars & Jupiter.
a)
solar system
b)
asteroid belt
c)
terrestrial planets
d)
photosphere
18.
The four terrestrial planets are known for their _________
a)
hot temps
b)
deep atmospheres
c)
rocky surfaces
d)
large size
19.
A force of attraction between any two objects is called _____________.
a)
static electricity
b)
rotation
c)
gravity
d)
orbit
20.
How long does it take Earth to complete one revolution around the Sun?
a)
24 hours
b)
one week
c)
one month
d)
one year
21.
Earth completes one full ___________ on its axis every 24 hours.
a)
rotation
b)
revolution
c)
resolution
d)
reservation
22.
Select the order from smallest to largest.
a)
Sun, Milky Way, solar system, universe
b)
Sun, Milky Way, universe, solar system
c)
Sun, solar system, Milky Way, universe
d)
Sun, solar system, universe, Milky Way
23.
What do the first four outer planets have in common?
a)
They are much larger than Earth and are made mainly of Hydrogen and Helium
b)
The are about the same size as Earth and are mostly made of Hydrogen and Helium
c)
They are must larger than Earth and are mainly made of iron
d)
They are the same size as Earth and are mainly made of iron
24.
A giant sphere of glowing gases is a ___________
a)
Galaxy
b)
Light-year
c)
Star
d)
Magnitude
25.
A small body that orbits a planet is a(n)
a)
comet
b)
moon
c)
asteroid
d)
exoplanet
26.
Earth and the other planets closest to the Sun are made mostly of _______
a)
gas
b)
metal
c)
water
d)
rock
27.
The moon is a natural ______ of Earth.
a)
comet
b)
axis
c)
satellite
d)
space probe
28.
Earth's ________ on its axis causes day and night.
a)
rotation
b)
revolution
c)
phase
d)
comet
29.
One full orbit of an object around another object is called a ________.
a)
axis
b)
rotation
c)
revolution
d)
satellite
30.
The __________ has planets, moons, comets, and asteroids.
a)
solar system
b)
earth
c)
rotation
d)
United States
31.
Which factor makes Earth different from all the other planets in the solar system in its ability to support life?
a)
The Earth is exposed to rays from the sun.
b)
The Earth has only one moon that orbits around it.
c)
The Earth rotates in an elliptical orbit around the sun.
d)
The Earth has a breathable atmosphere.
32.
One of the main differences between the outer and inner planets is __________.
a)
The inner planets all have water
b)
the inner planets are much bigger than the outer planets
c)
the outer planets are gas planets
d)
the outer planets have rings, and the inner planets don't
33.
Which outer planets have rings?
a)
Just Saturn
b)
Saturn and Jupiter
c)
Jupiter, Neptune, and Saturn
d)
all 4 of them
34.
Which planet is the first planet from the sun?
a)
Mercury
b)
Venus
c)
Mars
d)
Pluto
35.
Which planet takes the least time to go around the sun?
a)
Mercury
b)
Earth
c)
Mars
d)
Jupiter
36.
What is the correct order of the inner planets?
a)
Jupiter, Saturn, Uranus, Neptune
b)
Mercury, Venus, Earth, Mars
c)
Mercury, Earth, Mars, Venus
d)
Jupiter, Mars, Uranus, Neptune
37.
If scientists discovered a large round object revolving around a star, that object would be considered a
a)
solar system
b)
star
c)
planet
d)
moon
38.
Which is true about planets?
a)
The outer planets are solid
b)
The inner planets have longer years than the outer planets.
c)
Pluto is no longer classified as a planet.
39.
All of Earth experiences night at the same time.
a)
True
b)
False
40.
Planets revolve around the sun.
a)
True
b)
False
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