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Planets

Total questions: 141

Worksheet time: 2hrs 35mins

Name
Class
Date
1.
What is the fourth planet from the Sun?
a)
Earth
b)
Mars
c)
Jupiter
d)
Mercury
2.
Earth and the other planets closest to the Sun are made mostly of _______
a)
gas
b)
metal
c)
water
d)
rock
3.
The __________ has planets, moons, comets, and asteroids.
a)
solar system
b)
earth
c)
rotation
d)
United States
4.
Day and night is caused by the _____________ of earth on its axis.
a)
revolution
b)
orbit
c)
rotation
5.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
6.
Which is the fourth planet from the sun?
a)
Mars
b)
Saturn
c)
Earth
d)
Jupiter
7.
Which planet is third from the sun?
a)
Mars
b)
Pluto
c)
Venus
d)
Earth
8.
What is the only planet known to contain life?
a)
Mars
b)
Earth
c)
Neptune
d)
Uranus
9.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
10.
The planet with the shortest year is
a)
Earth
b)
Neptune
c)
Pluto
d)
Mercury
11.
The order of the planets is:
a)
Mars,Venus,Earth,
Mercury,Saturn
Jupiter, Uranus, Neptune
b)
Earth,Venus,Mars
Jupiter, Neptune,
Mercury,Saturn,
Uranus
c)
Mercury,Venus,Earth
Mars,Jupiter,
Saturn,Uranus
Neptune
12.
True or False
The Earth is the center of the solar system.
a)
True
b)
False
13.
Planets that are closer to the sun
a)
take more time to orbit
b)
take less time to orbit
14.
What is true of all planets?
a)
They are large bodies in space that orbit the Sun
b)
Planets do not move, only stars move
c)
Planets make their own light
d)
Planets are larger than stars
15.
I am the planet between Saturn and Neptune. Who am I?
a)
Mars 
b)
Jupiter 
c)
Mercury 
d)
Uranus 
16.
I am the planet between Earth and Jupiter.  Who am I?
a)
Mars
b)
Mercury 
c)
Saturn 
d)
Venus 
17.
Very few moons
a)
Inner planets
b)
Outer planets
c)
Both
d)
Mercury
18.
Gas giants
a)
Inner planets
b)
Outer planets
c)
Both
d)
Venus
19.
Mercury, Venus, Earth, & Mars
a)
Inner planets
b)
Outer planets
c)
Both
d)
Pluto
20.
Jupiter, Saturn, Uranus, & Neptune
a)
Inner planets
b)
Outer planets
c)
Both
d)
Earth
21.
Close to the sun
a)
Inner planets
b)
Outer planets
c)
Both
d)
Kuiper Belt
22.
Shorter revolutions
a)
Inner planets
b)
Outer planets
c)
Both
d)
Neptune
23.
Which of the following is NOT true of all the inner planets?
a)
They are made of solid rock.
b)
They are called gas giants.
c)
They do not have rings.
d)
They have impact craters.
24.
The right combination of temperature, water, and oxygen
a)
affects Neptune’s orbit.
b)
supports life on Earth.
c)
causes gas giants to form.
d)
results in storms on Jupiter.
25.
Which of the following separates the outer planets from the inner planets?
a)
Asteroid Belt
b)
Great Red Spot
c)
Kuiper Belt
26.
The asteroid belt can be found between which two planets?
a)
Earth and Mars
b)
Venus and Earth
c)
Saturn and Uranus
d)
Mars and Jupiter
27.
The largest planet in the solar system; has alternating light and dark bands
a)
Jupiter
b)
Uranus
c)
The Sun
d)
Saturn
28.
The order of the planets is:
a)
Mars,Venus,Earth,
Mercury,Saturn
Jupiter, Uranus, Neptune
b)
Earth,Venus,Mars
Jupiter, Neptune,
Mercury,Saturn,
Uranus
c)
Mercury,Venus,Earth
Mars,Jupiter,
Saturn,Uranus
Neptune
29.
Which planet is the largest?
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
30.
Which planet is fifth from the sun?
a)
Saturn
b)
Jupiter
c)
Mars
d)
Earth
31.
Which planet is seventh from the sun?
a)
Saturn
b)
Earth
c)
Venus
d)
Uranus
32.
which planet is the third from the sun?
a)
Mercury 
b)
Neptune 
c)
Pluto 
d)
Earth 
33.
Which is the fourth planet from the sun?
a)
Mars
b)
Saturn
c)
Earth
d)
Jupiter
34.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
35.
The spinning of an object on its axis is called______
a)
orbit
b)
rotation
c)
revolution
d)
tide
36.
The earth orbits around...
a)
the sun.
b)
the moon
c)
other planets
d)
the Milky Way
37.
Almost Earth’s twin in size and mass, this planet has very thick atmosphere.
a)
Venus
b)
Mars
c)
Mercury
d)
Neptune
38.
This is the only planet in the solar system with oceans of liquid water.
a)
Mercury
b)
Mars
c)
Venus
d)
Earth
39.
The surface of this planet appears red due to rusting iron in the rocks.
a)
Mercury
b)
Mars
c)
Pluto
d)
Venus
40.
This gas giant has a large storm in its atmosphere known as The Red Spot
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
41.
What is a common characteristic of the inner planets?
a)
Large
b)
Gaseous
c)
Rings
d)
Rocky Surface
42.
Which planet has the biggest rings?
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
43.
What force keeps the planets orbiting the sun?
a)
Gravity
b)
Magnetism
c)
Electricity
d)
Friction
44.
Which objects have a STRONG force of gravity?
a)
Objects with GREATER mass, like elephants
b)
Objects with LESS mass, like mice
45.
Which has more mass, Earth or the Moon?
a)
Earth
b)
Moon
c)
The same
46.
Which has a STRONGER force of gravity, Earth or the Moon?
a)
Earth
b)
Moon
47.
Where would you weight more, on Earth or on the Moon?
a)
Earth
b)
Moon
48.
Where would you have more mass, on Earth or on the Moon?
a)
Earth
b)
Moon
c)
IS THE SAME, mass DOESN'T CHANGE
d)
In both Planets.
49.

A solar system consists of at LEAST one ____ and all the objects that orbit around it.

a)

sun

b)

star

c)

planet

d)

black hole

50.

Ancient astronomers only saw __ planets in the night sky (not including Earth).

a)

3

b)

4

c)

5

d)

6

51.

Telescopes are designed to collect a certain type of ...

a)

light

b)

electromagnetic wave

c)

planetary orbit

d)

star

52.

The space program requires the development of materials that can withstand the extreme ___ and ___ of space.

a)

temperatures and atmospheres

b)

light and lack of oxygen

c)

temperatures and pressures

d)

wind and debris

53.

By graphing the planets' data, we can easily identify _____ and measure the data against each other.

a)

relationships

b)

planet properties

c)

distances

54.

A planet's orbital period is directly related to the planet's ...

a)

temperature

b)

radius

c)

average distance from the sun.

55.

True or False: There is no relationship between a planet's distance from the sun and its radius.

a)

True

b)

False

56.

A ___ is used to represent and study very large things, such as the solar system.

a)

scale model

b)

graph

c)

diagram

57.

An astronomical unit (AU) is the average distance from ____ to ____.

a)

Earth / the Sun

b)

Jupiter / the sun

c)

Pluto / the sun

d)

Earth / the moon

58.

Different types of objects orbit the sun, such as... (pick the answer that has ALL the possible answers).

a)

satellites, rocket ships, and the ISS

b)

dwarf planets, planets, meteors, comets, moons, and asteroids

c)

stars, moons, and black holes

d)

dwarf planets, planets, meteors, comets, and asteroids.

59.

Which planet has the most number of moons (79)?

a)

Saturn

b)

Jupiter

c)

Earth

d)

Mercury

60.

Some scientists think that the moons of the outer planets are...

a)

captured asteroids, brought in by gravity

b)

actually planets

c)

larger than Earth

d)

containing life

61.

Regular spherical moons are formed by ___, which is a fancy way of saying that it formed in layers over time by gravity.

a)

gravitational pull

b)

accretion

c)

layering

62.

A ___ is a spherical object that orbits the sun. It does NOT have more mass than objects nearby, like regular planets do.

a)

asteroid

b)

dwarf planet

c)

comet

d)

moon

63.

Planets have more ___ that other objects in nearby orbits. Dwarf planets do NOT have more.

a)

weight

b)

moons

c)

mass

64.

Chunks of rock and ice that never clumped together like the rocks and ice that formed the inner planets.

a)

comets

b)

asteroids

c)

meteors

d)

dwarf planets

65.

Some scientists think that ____'s gravity made the chunks of rock and ice (asteroids) crash together so violently that they broke apart instead of sticking together.

a)

Saturn

b)

the sun

c)

Jupiter

d)

Earth

66.

Mixtures of ice, rock, and dust.

a)

comets

b)

asteroids

c)

meteors

d)

dwarf planets

67.

The particles of a comet are held together loosely by ___.

a)

Jupiter's gravity

b)

gravity

c)

ice

68.

____ are small rocky particles that move through space, and most are only about as big as a grain of sand. When one enters Earth's atmosphere, you see a streak of light because they are burning up due to ___.

a)

meteors / temperatures

b)

meteoroids / friction

c)

meteorites / friction

69.

When a meteorite enters Earth's atmosphere and burns up due to friction, we see a streak of light called a ____.

a)

meteorite

b)

meteor

c)

shooting star

70.

If a meteor doesn't completely burn up, it can impact the planet's surface. Now it is known as a ____.

a)

meteorite

b)

meteoroid

c)

meteor

71.

Why is there such a large range in the amount of time it takes to travel to Mars?

a)

because there are different types of fuels that astronauts use

b)

because the distance from Earth to Mars changes

c)

because the distance from Mars to the Sun changes

72.

What is the coldest planet?

a)

Jupiter

b)

Saturn

c)

Uranus

73.

________is made up of a star and the planets and other space objects that revolve around it.

a)

star

b)

sun

c)

solar system

d)

asteriod

74.

________is a large, round body that revolves around a star.

a)

plant

b)

planet

c)

star

d)

sun

75.

The diagram shows an example of____?

a)

muscular system

b)

water system

c)

solar system

d)

skeletal system

76.

Which group of planets do Jupiter, Saturn, Uranus and Neptune belong?

a)

inner planet

b)

outer planet

c)

center planet

d)

top planet

77.

What is the only planet known to contain life?

a)

Mars

b)

Jupiter

c)

Venus

d)

Earth

78.

Which is the largest planet in our solar system?

a)

Sun

b)

Earth

c)

Jupiter

d)

Mars

79.

Which planet is the hottest?

a)

Venus

b)

Earth

c)

Mercury

d)

Mars

80.

Mercury, Venus, Earth, and Mars are called.....?

a)

gas giant

b)

inner planet

c)

outer planet

d)

farthest planets

81.

What is a common characteristic of the inner planets?

a)

farthest from the sun

b)

gas giant

c)

closest to the sun

d)

coldest planet

82.

What is a common characteristic of the outer planets?

a)

many moons and rings

b)

large solid core

c)

closest to the sun

d)

short revolution

83.

Why are all the planets round in the solar system?

a)

They are not round.

b)

The planets spin and that makes them round.

c)

The planets are round because of gravity.

d)

The planets are round because they orbit the sun.

84.

Which statement explaining the relationship between stars and planets is true?

a)

the sizes of the planets are same to the sizes of nearby stars

b)

planets create light

c)

planets orbit the sun

d)

D. stars orbit some moon

85.
What is the fourth planet from the Sun?
a)
Earth
b)
Mars
c)
Jupiter
d)
Mercury
86.
Earth and the other planets closest to the Sun are made mostly of _______
a)
gas
b)
metal
c)
water
d)
rock
87.
The __________ has planets, moons, comets, and asteroids.
a)
solar system
b)
earth
c)
rotation
d)
United States
88.
Day and night is caused by the _____________ of earth on its axis.
a)
revolution
b)
orbit
c)
rotation
89.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
90.
Which is the fourth planet from the sun?
a)
Mars
b)
Saturn
c)
Earth
d)
Jupiter
91.
Which planet is third from the sun?
a)
Mars
b)
Pluto
c)
Venus
d)
Earth
92.
What is the only planet known to contain life?
a)
Mars
b)
Earth
c)
Neptune
d)
Uranus
93.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
94.
The planet with the shortest year is
a)
Earth
b)
Neptune
c)
Pluto
d)
Mercury
95.
The order of the planets is:
a)
Mars,Venus,Earth,
Mercury,Saturn
Jupiter, Uranus, Neptune
b)
Earth,Venus,Mars
Jupiter, Neptune,
Mercury,Saturn,
Uranus
c)
Mercury,Venus,Earth
Mars,Jupiter,
Saturn,Uranus
Neptune
96.
True or False
The Earth is the center of the solar system.
a)
True
b)
False
97.
Planets that are closer to the sun
a)
take more time to orbit
b)
take less time to orbit
98.
What is true of all planets?
a)
They are large bodies in space that orbit the Sun
b)
Planets do not move, only stars move
c)
Planets make their own light
d)
Planets are larger than stars
99.
I am the planet between Saturn and Neptune. Who am I?
a)
Mars 
b)
Jupiter 
c)
Mercury 
d)
Uranus 
100.
I am the planet between Earth and Jupiter.  Who am I?
a)
Mars
b)
Mercury 
c)
Saturn 
d)
Venus 
101.
Very few moons
a)
Inner planets
b)
Outer planets
c)
Both
d)
Mercury
102.
Gas giants
a)
Inner planets
b)
Outer planets
c)
Both
d)
Venus
103.
Mercury, Venus, Earth, & Mars
a)
Inner planets
b)
Outer planets
c)
Both
d)
Pluto
104.
Jupiter, Saturn, Uranus, & Neptune
a)
Inner planets
b)
Outer planets
c)
Both
d)
Earth
105.
Close to the sun
a)
Inner planets
b)
Outer planets
c)
Both
d)
Kuiper Belt
106.
Shorter revolutions
a)
Inner planets
b)
Outer planets
c)
Both
d)
Neptune
107.
Which of the following is NOT true of all the inner planets?
a)
They are made of solid rock.
b)
They are called gas giants.
c)
They do not have rings.
d)
They have impact craters.
108.
The right combination of temperature, water, and oxygen
a)
affects Neptune’s orbit.
b)
supports life on Earth.
c)
causes gas giants to form.
d)
results in storms on Jupiter.
109.
Which of the following separates the outer planets from the inner planets?
a)
Asteroid Belt
b)
Great Red Spot
c)
Kuiper Belt
110.
The asteroid belt can be found between which two planets?
a)
Earth and Mars
b)
Venus and Earth
c)
Saturn and Uranus
d)
Mars and Jupiter
111.
The largest planet in the solar system; has alternating light and dark bands
a)
Jupiter
b)
Uranus
c)
The Sun
d)
Saturn
112.
The solar system began as a...
a)
giant molecular cloud
b)
a red giant
c)
a gas giant
d)
a sun-sized black hole
113.
The gas and dust that made up the early solar system formed into a _____ and a _____ .
a)
protostar; accretion disk
b)
red dwarf; accretion disk
c)
blue giant; planets
d)
red giant; planets
114.
Planetesimals are...
a)
the smallest objects that have practical gravitational pull
b)
an object that is half the size of a planet
c)
the largest object that is not considered a gas giant
d)
an asteroid that collides with a planet
115.
Planets form by a process called...
a)
accretion
b)
dark matter interactions
c)
electromagnetic radiation
d)
sun-dropping
116.
The frost line is the distance from the sun beyond which...
a)
rocks become gaseous
b)
hydrogen compounds (ethane, ammonia, etc.) become liquid or solid
c)
water melts
d)
asteroids form
117.
This was probably the first planet to form.
a)
Jupiter
b)
Earth
c)
Mars
d)
Saturn
118.
This planet likely formed later than the other gas giants based on its composition (more methane and ammonia)
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Mars
119.
The 4 gas giants make up what percent of the mass orbiting the sun?
a)
about 99%
b)
about 75%
c)
about 50%
d)
about 1%
120.
Since it's original development, the asteroid belt has...
a)
lost mass.
b)
gained mass.
c)
maintained the same amount of mass
d)
disappeared completely.
121.
Terrestrial planets formed...
a)
from minerals that stayed liquid or solid despite the high temps of the inner solar system
b)
from minerals that stayed gaseous in the high temps of the inner solar system
c)
from gases that collected in the inner solar system
d)
from ice that accreted in the inner solar system.
122.
We know that Earth did not originally have any water because...
a)
Earth was too hot to hold onto water.
b)
Earth was too dry to soak up water
c)
Earth's magnetic field was too active to hold onto water.
d)
Earth was too small to hold onto water.
123.
The moon probably formed when...
a)
A piece of the Earth broke off due to it's fast rotation
b)
A Mars-sized object rammed into the Earth
c)
Earth captured the moon gravitationally as it attempted to pass by.
d)
the molten bubble of the Earth budded.
124.
Where did Earth probably get its water from?
a)
the moon
b)
water-laden asteroids knocked out of stable orbit by Jupiter
c)
comets from the Oort cloud
d)
a passing planet Earth ran into
125.
How long did the sun remain a protostar before becoming a main-sequence star
a)
50 million years
b)
50 years
c)
50 billion years
d)
500 million years
126.
What is the hypothesis of "Planetary Migration"?
a)
The current orbit of planets is not the same as when they originally formed
b)
Planets often migrate from solar system to solar system.
c)
Planets sometimes fall into the Sun.
d)
The current orbit of planets has always been the same, since they originally formed
127.
The late heavy bombardment probably occurred as a result of...
a)
Neptune's migration to and disruption of the Kuiper Belt
b)
Jupiter's disruption of the asteroid belt
c)
The Sun's changing magnetic field .
d)
The Earth's changing gravitational field.
128.
Which is the t planet with the shortest orbit?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
129.
Which is the smallest planet?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
130.
Which is the planet with the greatest night/day temperature variation?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
131.
Which is the planet with the most eccentric orbit?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
132.
Which is the planet with the highest temperature?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
133.
Which is the planet with the thickest atmosphere?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
134.
Which is the planet with the largest volcano in the solar system?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
135.
Which is the planet had liquid water before it lost its magnetic field?
a)
Mercury
b)
Earth
c)
Venus
d)
Mars
136.
Which is the largest planet?
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
137.
Which is the planet with the most powerful magnetic field?
a)
Jupiter
b)
Saturn
c)
Earth
d)
Neptune
138.
Which is the planet with the lowest density?
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
139.
What are the rings of Saturn made of?
a)
Mostly water ice
b)
Mostly hydrocarbon ices
c)
Mostly rock
d)
Mostly silicate dust
140.
What are Saturn's rings made of?
a)
Mostly dust
b)
Mostly water ice
c)
Mostly methane and ammonia ices
d)
Mostly rock
141.
Which planet has the coldest atmosphere?
a)
Uranus
b)
Neptune
c)
Mercury
d)
Venus

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