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The eight Planets

Total questions: 51

Worksheet time: 43mins

Name
Class
Date
1.

Which planet closely matches Earth in size & composition?

a)

Venus

b)

Mercury

2.

Mercury's diameter - compared to Earth's moon - is

a)

larger than the Moon.

b)

comparable to the Moon.

c)

smaller than the Moon.

d)

not affected by the closeness of the Sun.

3.

What type of planet is Mercury?

a)

Terrestrial planet

b)

Gas giant

c)

Ice giant

d)

Dwarf planet

4.

How big is Mercury compared to the other 7 planets in our solar system?

a)

Mercury is the smallest planet

b)

Mercury is the biggest planet

c)

Mercury is the 4th biggest planet

d)

Mercury is the 2nd smallest planet

5.

Who was the first person to see Mercury in a Telescope?

a)

Galileo Galilei

b)

Albert Einstein

c)

Isaac Newton

d)

Benjamin Franklin

6.

What was Mercury named after?

a)

Roman god

b)

Wild animal

c)

Sea creature

d)

An element

7.

How hot can it get on Mercury when it’s day?

a)

800 degrees Fahrenheit

b)

200 degrees Fahrenheit

c)

234 degrees Fahrenheit

d)

560 degrees Fahrenheit

8.

What number planet is Venus?

a)

2

b)

4

9.

What is another name for Venus?

a)

Earth's Sister

b)

Mars

10.

How many moons does Venus have?

a)

3

b)

2

c)

0

11.

There is life on Venus

a)

true

b)

false

12.

What is the second planet from the Sun called?

a)

Mercury

b)

Venus

c)

Earth

13.

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

14.

Mars's atmosphere contains what percentage of carbon dioxide?

a)

70%

b)

27%

c)

95%

d)

10%

15.

Mars is the ________ planet from the sun.

a)

5th

b)

4th

c)

3rd

d)

9th

16.

How many moons does Mars have?

a)

none

b)

1

c)

2

d)

3

17.

Olympus Mons is the solar systems largest

a)

Moon

b)

Volcano

c)

Valley

d)

Supermarket

18.

What are the names of Mars's moons?

a)

Phobos and Deimos

b)

Titan and lo

c)

Moon and Nix

d)

Miranda and Phoebe

19.

What is Mars "Nickname"

a)

Earth's twin

b)

The red planet

c)

The tropical planet

d)

Ringsy

20.

Ganymede is the largest ___ in the solar system and orbits Jupiter.

a)

moon

b)

planet

c)

dwarf planet

d)

asteroid

21.

Jupiter is composed mostly of _____ & _____.

a)

gases, liquids

b)

hydrogen, helium

c)

clouds, lightning

d)

argon, nitrogen

22.

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.

23.

This cloud feature (storm) is about 3 times the size of Earth.

a)

Great Dark Spot

b)

Great Red Spot

c)

sprites & jets

d)

cloud banding

24.

Which moon of Jupiter may be the most conducive to alien life?

a)

IO

b)

Europa

c)

Ganymede

d)

Callisto

25.

Saturn has the most extensive ring system in the solar system - but it is only

a)

a few meters thick.

b)

a few thousand years old.

c)

an optical illusion that "disappears" sometimes.

d)

made up of rock & small debris.

26.

Saturn's overall density is about ___ - which is less than the density of water!

a)

the same as Jupiter

b)

the same as Earth

c)

5.55 g/cm3

d)

.678 g/cm3

27.

Saturn (like Jupiter) also has a strong magnetic field. This creates ___ at its poles.

a)

massive hurricanes

b)

cloud banding

c)

auroras

d)

more ring structures

28.
how many moons does Uranus have?
a)
27
b)
22
c)
5
d)
13
29.
what color is uranus?
a)
orange
b)
blue
c)
icy blue
d)
green
30.
why is the planet blue?
a)
thick hydrogen- methane 
b)
iron 
c)
made up of hydrogen and helium
31.
how many rings are surrounding Uranus?
a)
13
b)
10
c)
9 to 13
d)
25
32.
who was Uranus discoverd by?
a)
Tim McGraw
b)
Albert Einstein
c)
Hubble 
d)
William Herschel
33.
Uranus is tipsy because it got too lit last night?
a)
true
b)
false
34.

Uranus is a solid planet

a)

true

b)

false

35.

Uranus has rings.

a)

True

b)

False

36.

What Way Does Uranus Rotate?

a)

Clockwise on its Side

b)

Counter-Clockwise on its Side

c)

Normally Clockwise

d)

Normally Counter-Clockwise

37.

Uranus is the __________ planet from the sun.

a)

5th

b)

6th

c)

7th

d)

8th

38.

One unique thing about Uranus is

a)

it spins on its side

b)

it has the most moons

c)

it is the fastest planet to travel around the sun

d)

it has the best ice cream joint in the whole solar system

39.
What is the correct order of the outer planets?
a)
Neptune, Jupiter, Saturn and Uranus
b)
Uranus, Neptune, Saturn and Jupiter
c)
Jupiter, Saturn, Uranus and Neptune
d)
Neptune, Uranus, Saturn and Jupiter
40.
Under ordinary conditions, how many planets can you see in the sky without a telescope?
a)
four
b)
five
c)
six
d)
seven
41.
In 1781, who discovered the planet Uranus using a telescope?
a)
Edmund Hubble
b)
William Herschel
c)
Isaac Newton
d)
Nicolaus Copernicus
42.
Originally named after a king, Uranus is now named after _____
a)
a Roman god
b)
a Greek god
c)
a Norse god
d)
an Egyptian god
43.
To distinguish it from the gas giants Jupiter and Saturn, Uranus is called _____
a)
an ice giant
b)
a frosty dwarf
c)
a gas dwarf
d)
a snow giant
44.
Which gas, in the atmosphere of Uranus, smells like rotten eggs?
a)
ammonia
b)
hydrogen sulfide
c)
methane
d)
carbon monoxide
45.
The moons of Uranus are named after _____
a)
classical poets
b)
Impressionist painters
c)
characters in Shakespeare plays
d)
Greek mythological figures
46.

The gas element ___ is responsible for the overall colors of both Uranus & Neptune.

a)

methane

b)

hydrogen

c)

helium

d)

nitrogen

47.

Neptune's moon ___ is unusual in that it orbits the planet in a retrograde motion.

a)

Titan

b)

Nereid

c)

Triton

d)

Proteus

48.

Why was Neptune discovered

a)

Something was disturbing Uranus orbit

b)

By accident

c)

By William Hershel and his sister- looking for comets

d)

Voyager II went there in 1989

49.

Neptune is about the same size as

a)

Uranus

b)

Earth

c)

Saturn

d)

Jupiter

50.

Storms on this planet appear

a)

red

b)

very rarely

c)

During spring and summer

d)

dark

51.
Which planet takes the longest time to orbit around the sun?
a)
Mars
b)
Mercury
c)
Neptune
d)
Jupiter

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