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Test: Planets

Total questions: 63

Worksheet time: 39mins

Name
Class
Date
1.

How long does it take for Mercury to complete one rotation on its axis?

a)

About 59 Earth days

b)

About 30 Earth days

c)

About 88 Earth days

d)

About 100 Earth days

2.

What is the distance of Mercury from the Sun in astronomical units?

a)

0.6 AU

b)

0.4 AU

c)

0.8 AU

d)

0.2 AU

3.

What is the composition of Mercury's exosphere?

a)

Nitrogen, helium, argon

b)

Carbon dioxide, argon, neon

c)

Oxygen, sodium, hydrogen, helium

d)

Oxygen, nitrogen, carbon dioxide

4.

What is the name of the largest impact basin on Mercury's surface?

a)

Rachmaninoff

b)

Caloris

c)

Copernicus

d)

Tycho

5.

What is the name of the fastest planet in our solar system?

a)

Venus

b)

Mercury

c)

Earth

d)

Mars

6.

Mercury is the named after an ancient Roman god. What was that god's job title?

a)

Ruler

b)

War

c)

Love

d)

Messenger

7.

What is the solar day on Mercury in Earth days?

a)

100 Earth days

b)

200 Earth days

c)

50 Earth days

d)

176 Earth days

8.

How many moons does Venus have?

a)

0

b)

1

c)

2

d)

3

9.

What substance forms the majority of Venus' atmosphere?

a)

Sulfur

b)

Nitrogen

c)

Carbon dioxide

d)

Sulfur dioxide

10.

Not including Earth, the Moon and the Sun, what is the brightest natural object in the sky?

a)

Mars

b)

Venus

c)

A plane

d)

Sun

11.

Who is Venus named after?

a)

Mrs. Anhold

b)

the god of speed

c)

the goddess of beauty and love

12.
Venus is the hottest planet in our solar system.
a)
False
b)
True
13.
Venus's rotation is
a)
prograde
b)
normal
c)
retrograde
d)
tidally locked
14.
Why is Venus nicknamed "Earth's twin"?
a)
It looks just like Earth.
b)
It has one moon just like Earth.
c)
It is about the same size as Earth.
15.
How long is a day on Venus?
a)
24 hours
b)
88 Earth days
c)
225 Earth days
d)
243 Earth days
16.

A year on Venus lasts ___________ Earth days.

a)

225

b)

24

c)

242

d)

42

17.

Which planet is the largest of the rocky planets near the Sun?

a)

Mars

b)

Venus

c)

Earth

d)

Mercury

18.

What special feature does Earth have on its surface?

a)

Mountains

b)

Liquid water

c)

Deserts

d)

Forests

19.

The main layers of Earth are:

a)

Crust, Mantle, Core

b)

Crust, Outer Core, Inner Core

c)

Lithosphere, Asthenosphere, Mesosphere

d)

Biosphere, Hydrosphere, Atmosphere

20.

What is the orbital period of Earth?

a)

365.25 days

b)

365 days

c)

364 days

d)

366 days

21.

What is the axis tilt of Earth?

a)

20 degrees

b)

30 degrees

c)

23.5 degrees

d)

25 degrees

22.

Earth is the most dense of all the planets.

a)

True

b)

False

23.

True or False: Mars is known as the 'Red Planet'.

a)

True

b)

False

24.

Mars appears ______ in the night sky.

a)

red

b)

white

c)

yellow

25.

What is the largest volcano in the solar system?

a)

Mount Everest

b)

Mauna Loa

c)

Olympus Mons

d)

Mount Kilimanjaro

26.

Which is not one of Mars' moons?

a)

Deimos

b)

Titan

c)

Phobos

27.

Which is the largest gas planet in our solar system?

a)

Earth

b)

Mars

c)

Jupiter

d)

Saturn

28.

What is the largest moon in the solar system?

a)

Titan

b)

Europa

c)

Ganymede

d)

Callisto

29.

How many rings does Jupiter have?

a)

2

b)

3

c)

4

d)

5

30.

How long is one day on Jupiter?

a)

12 hours

b)

10 hours

31.

How long is a year on Jupiter?

a)

the same as a year on Earth

b)

nearly 12 Earth-years long

c)

ten hours

32.

How Long is a day on Jupiter

a)

9 hours

b)

24 hours

c)

10 hours

d)

11 hours

33.

Jupiter is composed mostly of _____ & _____.

a)

gases, liquids

b)

hydrogen, helium

c)

clouds, lightning

d)

argon, nitrogen

34.

What are the Inner planets?


Select ALL that apply.

a)

Mars

b)

Venus

c)

Mercury

d)

Earth

e)

Saturn

35.

What is the only planet that supports life?

a)

Mars

b)

Neptune

c)

Earth

d)

Saturn

36.

What are the outer planets?


Select ALL that apply.

a)

Mars

b)

Jupiter

c)

Saturn

d)

Uranus

e)

Neptune

37.

What is the name of the storm on Jupiter?

a)

The Great Red Spot

b)

The Spot

c)

The Red

d)

The Storm

38.

Which planet is known for its stunning ring system?

a)

Jupiter

b)

Saturn

c)

Venus

39.

What does Saturn represent?

a)

A planet in the solar system

b)

A Roman god of agriculture

c)

A type of car

d)

A famous painting

40.

What is the orbit period (P) of Saturn?

a)

10,756 hours

b)

29.5 days

c)

10,756 days

d)

10.6 years

41.

How long does it take for Saturn to complete one rotation on its axis?

a)

10.6 days

b)

29.5 hours

c)

10.6 years

d)

10.6 hours

42.

Which planet has the most moons?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

43.

What is the name of the largest moon of Saturn?

a)

Europa

b)

Ganymede

c)

Titan

d)

Callisto

44.

Which planet has the largest ring system in the solar system?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

45.

What is the nickname of the planet Uranus?

a)

The Sideways Planet

b)

The Ringed Planet

c)

The Red Planet

d)

The Blue Planet

46.

Why is Uranus called an 'ice giant'?

a)

Due to its unique composition

b)

Because it is the coldest planet

c)

Because it is made entirely of ice

d)

Because it has ice rings

47.

What is unique about the Uranus' tilt?

a)

It has an extreme 98° tilt.

b)

It has no tilt at all.

c)

It tilts at a perfect 45° angle.

d)

It changes tilt every year.

48.

Why does the planet appear greenish-blue?

a)

Due to methane in its atmosphere.

b)

Due to water in its atmosphere.

c)

Due to oxygen in its atmosphere.

d)

Due to carbon dioxide in its atmosphere.

49.

Which is the largest moon of Uranus?

a)

Oberon

b)

Titania

c)

Miranda

d)

Ariel

50.

What is the orbit period (P) of Uranus?

a)

30,687 Earth days (84 Earth years)

b)

10,000 Earth days (27 Earth years)

c)

50,000 Earth days (137 Earth years)

d)

75,000 Earth days (205 Earth years)

51.

How long does it take for Uranus to complete one rotation on its axis?

a)

10 hours

b)

17 hours

c)

24 hours

d)

30 hours

52.

What is the color of Uranus?

a)

Pale blue

b)

Bright yellow

c)

Dark red

d)

Green

53.

How was Neptune discovered?

a)

Through telescopic observations

b)

By mathematical predictions

c)

By accident during a space mission

d)

By radio signals received on Earth

54.

Neptune is named after which Roman god?

a)

Roman god of war

b)

Roman god of the sea

c)

Roman god of the underworld

d)

Roman god of the sun

55.

What type of planet is Neptune?

a)

Terrestrial planet

b)

Dwarf planet

c)

Icy gas planet

d)

Hot gas planet

56.

Neptune's vivid blue color is influenced by the presence of what substance?

a)

Water

b)

Methane

c)

Ammonia

d)

Hydrogen sulfide

57.

Which is the largest moon of Neptune?

a)

Europa

b)

Ganymede

c)

Triton

d)

Titan

58.

How is the weather on Neptune described?

a)

Calmest and most predictable in the solar system

b)

Wildest and strangest in the entire solar system

c)

Warmest and most humid in the solar system

d)

Coldest and driest in the solar system

59.

Why is Venus the hottest planet?

a)

the orbit of Venus takes it closer to the Sun sometimes

b)

It has a "runaway" Greenhouse effect

c)

Mercury has no atmosphere (to speak of)

d)

because Mercury has a fairly substantial magnetic field

60.

Olympus Mons is the solar systems largest

a)

Moon

b)

Volcano

c)

Valley

d)

Supermarket

61.

Jupiter has colorful bands of clouds (tan, red, white & brown). This is mostly due to

a)

the tidal effects of its moons.

b)

differential spin ratios.

c)

differing chemical composition.

d)

external heating from the Sun.

62.

How many planets are there in our solar system?

a)

Eight

b)

Nine

63.

Label the planets in the picture.