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Total questions: 105

Worksheet time: 2hrs 45mins

Name
Class
Date
1.

What causes the planets to stay in their orbits?

a)

Newton's 1st Law of Motion

b)

to avoid running into other planets

c)

its the law of the solar system

d)

the gravitational force of the sun

2.

Mercury is very close in size to _____.

a)

Earth

b)

Mars

c)

Venus

d)

Earth's Moon

3.

This planet can be referred to as Earth's ✨TWIN✨

a)

Mars

b)

Earth

c)

Venus

d)

Mercury

4.

This planet is red in color due to the oxidation of Iron (Fe) (rust)

a)

Venus

b)

Earth

c)

Mercury

d)

Mars

5.

Which planet is the smallest

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

6.

What is the correct order of the planets starting from the sun

a)

mars, venus, mercury, earth

b)

venus, mercury, earth, mars

c)

mercury, venus, earth, mars

d)

mercury, earth, venus, mars

7.
What planet can support life? 
a)
Earth
b)
Mars
c)
Saturn
d)
Pluto
8.
Which planet is the most hottest?
a)
mercury
b)
venus
c)
earth
d)
neptune
9.

Which planet has the longest year?

a)

Mars

b)

Venus

c)

Earth

d)

Mercury

10.

Which planet has the thinnest atmosphere?

a)

Mars

b)

Venus

c)

Earth

d)

Mercury

11.

Which of the following characteristics is common to ALL FOUR planets in the inner solar system?

a)

have one or two moons

b)

have a solid rocky surface

c)

have a thin, toxic, atmosphere

d)

have the same orbit length around the sun

12.

Which inner planet is the largest?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

13.

Which inner planet has the largest volcano?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

14.

Which inner planet has the thickest atmosphere?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

15.

Which inner planet is 70% covered in water?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

16.

What does our Solar System revolve around?

a)

Sun

b)

Earth

c)

Milky Way

17.
The surface of Mercury is covered with
a)
craters
b)
water
18.
Humans have traveled to the moon.
a)
True
b)
False
19.
The inner planets are closer to the sun so
a)
they take longer to orbit the sun.
b)
they orbit the sun faster.
20.
How many days does it take Earth to orbit the Sun?
a)
88 days
b)
365 days
21.
Which list places the inner planets in order from largest in size to smallest in size?
a)
Venus, Earth, Mercury, Mars
b)
Earth, Venus, Mars, Mercury
22.

This planet is red in color due to the oxidation of Iron (Fe) (rust)

a)

Earth

b)

Mars

23.
The motion of a body orbiting another body in space is called _____.
a)
revolution 
b)
period of revolution
c)
rotation
d)
period of rotation
24.
This planet is known as the red planet
a)
Neptune
b)
Mars
c)
Mercury
d)
Uranus
25.
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.
26.

Which is NOT an inner planet?

a)

Mercury

b)

Saturn

c)

Mars

d)

Earth

27.

a regular, repeating path that one object in space takes around another one.

a)

rotation

b)

orbit

c)

planet

28.

Which inner planet has the highest surface temperature because the thick clouds trap heat from the sun?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

29.

Which choice is NOT true about the inner planets?

a)

They are warmer than outer planets.

b)

They are closer to the sun than outer planets.

c)

They are made of gas.

d)

They don't have rings.

30.

Being closer to the Sun means the Inner Planets are...

a)

warmer

b)

bigger

c)

colder

d)

yellow

31.

Uranus is blue/green because of traces of ___________ in its atmosphere.

a)

oxygen

b)

methane

c)

helium

d)

hydrogen

32.

What is the second largest planet in our solar system?

a)

Neptune

b)

Jupiter

c)

Uranus

d)

Saturn

33.
________ has the most spectacular rings.
a)
Neptune
b)
Jupiter
c)
Uranus
d)
Saturn
34.

All of the outer planets are known as the _________.

a)

terrestrial giants

b)

titanium planets

c)

helium giants

d)

gas giants

35.

This planet rotates on its side.

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

36.
This planets is farthest from the sun
a)
Neptune
b)
Jupiter
c)
Saturn
d)
Mars
37.

What planet takes the longest to orbit the sun?

a)

Uranus

b)

Jupiter

c)

Neptune

d)

Saturn

38.

The Outer Planets are extremely

a)

Cold

b)

Hot

39.

What planet is no longer a planet?

a)

Jupiter

b)

Neptune

c)

Pluto

d)

Saturn

40.

What makes the Outer Planets different than the Inner Planets?

a)

They're made of rock and move slow

b)

They don't exsist

c)

They're made of gas and move fast

d)

They're made of gas and rock and move fast

41.

What separates the Inner Planets and Outer Planets?

a)

Mars

b)

Asteroid Belt

c)

Nothing

d)

Jupiter

42.

What is Jupiter mostly made of?

a)

Nitrogen and Oxygen

b)

Oxygen

c)

Hydrogen and Helium

43.

Which planets have rings?

a)

Saturn

b)

All the gas giants

c)

Saturn and Uranus

d)

Saturn and Neptune

44.

What are Saturns rings made of?

a)

Helium and hydrogen

b)

Ice and rock

c)

Oxygen and methane

d)

Methane

45.

How does Uranus rotate?

a)

Upright

b)

On its side

46.
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
47.

In general, the Outer Planets are...

a)

Windy

b)

Cold

c)

Big

d)

All of the Above

48.

Which of the following falls between the Inner & Outer Planets?

a)

Asteroid Belt

b)

3rd Degree Black Belt

c)

Kuiper Belt

d)

Oort Cloud

49.
As comets progress through their elliptical orbits, they are heated mostly by _____
a)
the Sun
b)
friction
c)
internal molten metals
d)
convection of gases
50.
A ball of ice and rock whose orbit is usually a long, narrow ellipse.
a)
Comet
b)
Meteor
c)
Planet
d)
Moon
51.
The ________ belt between Mars and Jupiter
a)
Comet
b)
Asteroid
c)
Meteor
d)
Star
52.
rocky metallic objects that orbit the sun but are too small to be considered planets
a)
Asteroid
b)
Meteor
c)
Comet
d)
Star
53.

What force keeps planets, comets, asteroids, and meteoroids in orbit around the Sun?

a)

Electricity

b)

Solar power

c)

Inertia

d)

Gravity

54.

One similarity between asteroids & comets is that they all:

a)

are made of rock

b)

come from the Asteroid Belt

c)

come from the Oort Cloud

d)

orbit the sun

55.
When objects strike the surface of a planet or moon, they leave a deep impression on the surface called a:
a)
Pothole 
b)
Crater
c)
Canyon
d)
Plateau
56.

Human activities that reduce environmental impact are called ___________.

a)

nonrenewable resources

b)

pollution

c)

effect

d)

ecofriendly

57.

Which type of pollution is shown in the image below?

a)

Air pollution

b)

Water pollution

c)

Acid precipitation

d)

Global warming

58.
____________ is the addition of harmful materials to the environment.
a)
pollution
b)
ecotourism
c)
conservation
d)
recycle
59.
To __________ means to collect old, used materials, and to process them and make them into new items.  
a)
compost
b)
decomposer
c)
litter
d)
recycle
60.

Use and old paint can to store shelf markers in the library. Reduce, reuse, recycle, or trash?

a)
b)
c)
d)
61.

Use less energy and turn off the lights. Reduce, reuse, recycle, or trash?

a)
b)
c)
d)
62.

Wear your clothes again. Reduce, reuse, recycle, or trash?

a)
b)
c)
d)
63.

Which Earth system is most affected when factories burn harmful chemicals and release those substances into the air?

a)

Atmosphere

b)

Geosphere

c)

Hydrosphere

d)

Biosphere

64.

How does building a large dam affect some or all of the Earth's systems?

a)

Building a dam generates more electricity.

b)

Building a dam increases the amount of fresh drinking water.

c)

Building a dam impacts wildlife that depend on the natural flow of water.

d)

Building a dam increases recreational activities.

65.

Human impact on Atmosphere

a)

When people cutdown or grow trees

b)

When people build dams to store water

c)

When people build houses to live

d)

When people add or remove pollutants from air

66.

Human impact on geosphere

a)

When people cutdown or grow trees

b)

When people build dams to store water

c)

When people build houses to live

d)

When people add or remove pollutants from air

67.

Human impact on Hydrosphere

a)

When people cutdown or grow trees

b)

When people build dams to store water

c)

When people build houses to live

d)

When people add or remove pollutants from air

68.

Human impact on Biosphere

a)

When people cutdown or grow trees

b)

When people build dams to store water

c)

When people build houses to live

d)

When people add or remove pollutants from air

69.

True or False: The biosphere can be negatively affected by air pollution.

a)

true

b)

false

70.

Positive or Negative impact on Earth's Systems: solar powered lights

a)

Positive

b)

Negative

71.

Positive or Negative impact on Earth's Systems: factories polluting the air

a)

Positive

b)

Negative

72.

Positive or Negative impact on Earth's Systems: buying recycled products

a)

Positive

b)

Negative

73.

Positive or Negative impact on Earth's Systems: letting the water run longer than needed

a)

Positive

b)

Negative

74.

Riding your bike to school is an example of...

a)

recycling

b)

reusing

c)

reducing

75.

Buying a chair made of reused plastic is an example of...

a)

recycling

b)

reusing

c)

reducing

76.

Using cloth grocery bags is an example of...

a)

recycling

b)

reusing

c)

reducing

77.
Which human activity would preserve nonrenewable resources?
a)
deforestation
b)
removing carnivores from a forest 
c)
recycling
d)
heating homes with fossil fuels  
78.
Which human activity would most likely deplete nonrenewable resources?
a)
use of natural enemies to eliminate insect pests
b)
development of wildlife refuges 
c)
governmental restriction of industrial pollution 
d)
increased use of fossil fuels
79.

How do you reduce the usage of plastic bags?

a)

Bring your own grocery or cotton bag

b)

Carry the items with your own hands

c)

Never go shopping

80.

How are green homes and electric cars alike?

a)

They are both energy efficient.

b)

They both use solar panels.

c)

They both require batteries to work.

d)

They both require gas to work.

81.

The protection, preservation and management of natural resources is known as

a)

recycling

b)

consumption

c)

conservation

d)

restoration

82.

What action is good for the Earth?

a)

Use less water

b)

Use more water

c)

Use more plastic bags

83.

What action is bad for the Earth?

a)

Closing the tap when brushing teeth

b)

Throwing trash into the river

84.

This picture gives benefit or harm to the Earth?

a)

Benefit to the Earth

b)

Harm to the Earth

85.

How does a bus efficiently use energy resources?

a)

The bus does not use fossil fuels.

b)

The bus uses fossil fuels, but it transports many children at one time.

c)

The bus does not produce exhaust.

86.

Which items cannot be recycled?

a)

plastic bottles

b)

aluminium cans

c)

food waste

d)

newspapers

87.

How can we reduce the use of plastic bags?

a)

Bring our own grocery bags

b)

Throw away plastic bags after using it

c)

Buy many plastic bags for our own use

d)

Burn plastic bags together with other rubbish

88.

Which of the following is a way a person could demonstrate conservation?

a)
recycling waste materials like plastic, glass, paper, and aluminum
b)

limiting water use when showering and brushing teeth

c)
using rechargeable batteries
d)
all of the above are good conservation practices
89.

Why are Earth's resources important for humans

a)

They can help us do things

b)

They are needed for survival

c)

They look pretty

90.
The following is an example of reducing: 
a)
bringing newspapers to a recycling center. 
b)
using plastic bags as small garbage bags.  
c)
using less water when you shower.  
d)
all of the above.  
91.

Which of the following is an effective way to conserve resources?

a)

buying things unnecessarily

b)

by growing trees more than those being cut down

c)

by keeping the tap water open while brushing teeth

92.

4. When we cut down trees, what do we do to the habitats of many living things?

a)

help

b)

destroy

c)

build

d)

plant

93.
When we look at the sun, what layer are we viewing?
a)
photosphere
b)
chromosphere
c)
corona
d)
convection zone
94.
What layer can be seen here?
a)
chromosphere
b)
corona
c)
photosphere
d)
core
95.
What is the sun mostly made up of
a)
Helium
b)
Core
c)
Carbon
d)
Hydrogen
96.
a brief burst of energy from the sun’s photosphere
a)
corona
b)
solar flare
c)
solar wind
d)
photosphere
97.
Which statement is true about the sun?
a)
It is a star.    
b)
It is the largest star in our galaxy. 
c)
It is a planet close to Earth.
d)
It is a moon. 
98.
Which layer of the sun is the hottest?
a)
Photosphere
b)
Chromosphere
c)
Corona
d)
Core
99.
How does the sun keep all of the planets in orbit?
a)
The pull of its gravity
b)
the flames give it power
c)
the sun spots
d)
The solar flares guide them
100.
What color are the hottest stars?
a)
red
b)
yellow
c)
orange
d)
blue
101.
How much of the solar system's total mass is the sun?
a)
Less than 10%
b)
Approximately half
c)
73.8%
d)
Over 99%
102.
What two things does the Sun give off
a)
Light and Heat
b)
Air and light
c)
Heat and rain
d)
None of the above
103.

Compare to other stars we observe, the Sun appears bigger and brighter because:

a)

It is visible at night

b)

It is much closer to Earth

c)

It has more mass

d)

It is older

104.

The temperature of the Sun's core is ______ of degrees Celsius.

a)

Millions

b)

Thousands

c)

Hundreds

d)

Tens

105.
an object, such as a moon, that moves around a much larger object
a)
meteor
b)
satellite
c)
asteroid
d)
atmosphere

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