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The Origin and Structure of the Earth

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

This gas makes up 78.1% of the atmosphere.

a)

Nitrogen

b)

Oxygen

c)

Carbon Dioxide

d)

Helium

2.

This layer of the atmosphere protects us from UV rays.

a)

Troposphere

b)

Mesosphere

c)

Stratosphere

d)

Ionosphere

3.

What is the lowest layer of the atmosphere where the weather forms?

a)

Stratosphere

b)

Troposphere

c)

Mesosphere

d)

Thermosphere

4.

Which layer of the atmosphere protects us from space debris like asteroids and comets?

a)

Stratosphere

b)

Troposphere

c)

Thermosphere

d)

Mesosphere

5.

Which layer of the atmosphere does aurora happen?

a)

Stratosphere

b)

Thermosphere

c)

Mesosphere

d)

Troposphere

6.

What is the layer of the atmosphere where you can find the ozone layer?

a)

Mesosphere

b)

Troposphere

c)

Thermosphere

d)

Stratosphere

7.

This is the farthest layer of the atmosphere?

a)

Stratosphere

b)

Mesosphere

c)

Exosphere

d)

Thermosphere

8.

This subsystem of the Earth includes all the soils and rocks in the Earth.

a)

Geosphere

b)

Hydrosphere

c)

Atmosphere

d)

Biosphere

9.

This subsystem of the Earth is composed of all the water on the Earth in all its forms.

a)

Atmosphere

b)

Lithosphere

c)

Biosphere

d)

Hydrosphere

10.

This subsystem of the Earth is composed of all the living organism on Earth.

a)

Lithosphere

b)

Biosphere

c)

Hydrosphere

d)

Atmosphere

11.

Lakes are part of which subsystem?

a)

Hydrosphere

b)

Atmosphere

c)

Lithosphere

d)

Biosphere

12.

Mountains are part of which subsystem?

a)

Hydrosphere

b)

Geosphere

c)

Atmosphere

d)

Biosphere

13.

Seas and oceans are part of which subsystem?

a)

Atmosphere

b)

Hydrosphere

c)

Biosphere

d)

Lithosphere

14.

Crabs are part of which subsystem?

a)

Atmosphere

b)

Hydrosphere

c)

Biosphere

d)

Lithosphere

15.

Bacteria are part of which subsystem?

a)

Lithosphere

b)

Hydrosphere

c)

Atmosphere

d)

Biosphere

16.

The oxygen that we breathe is part of which subsystem?

a)

Hydrosphere

b)

Lithosphere

c)

Atmosphere

d)

Biosphere

17.

The carbon dioxide that traps heat on the Earth is part of which subsystem?

a)

Atmosphere

b)

Hydrosphere

c)

Lithosphere

d)

Biosphere

18.

Who discovered that the spiral nebulae were moving far away from the Earth?

a)

Vesto Slipher

b)

Niel Armstrong

c)

Albert Einstein

d)

Isaac Newton

19.

Who was the proponent of the Big Bang Theory?

a)

Albert Einstein

b)

Stephen Hawking

c)

Georges Lemaitre

d)

Isaac Newton

20.

The Big Bang is an explosion.

a)

True

b)

False

21.

Who proved that the universe is expanding using mathematics?

a)

Albert Einstein

b)

Stephen Hawking

c)

Edwin Hubble

d)

Fred Hoyle

22.

According to this theory, the universe expanded and will soon collapse and expand again.

a)

Big Bounce

b)

Big Bang

c)

Big Crunch

d)

Big Freeze

23.

When the universe collapses, it is called "the Big Crunch."

a)

True

b)

False

24.

According to this Theory, the universe expands but the density remains the same because new stars and galaxies are formed

a)

The Big Bang Theory

b)

The Inflationary Theory

c)

The Dark Matter Theory

d)

The Steady State Theory

25.

Which of the following can best describe the formation of the solar system?

a)

Nebular Hypothesis

b)

Encounter Theory

c)

Accretion Theory

d)

Panspermia Theory

26.

Which of the following is NOT a reason why Earth supports life?

a)

Abundance of oxygen

b)

Presence of liquid water

c)

Extreme temperature

d)

Availability of food sources

27.

Which of the following is the main source of energy on Earth?

a)

Wind

b)

Sun

c)

Water

d)

Fossil Fuels

28.

Which of the following layers of the Earth is responsible for the formation of magnetic field that surrounds the Earth?

a)

Crust

b)

Mantle

c)

Asthenosphere

d)

Core

29.

What are the different criteria to make a planet a habitable one? (You can choose more than one answer)

a)

Presence of liquid water

b)

The planet must be located in the Goldilocks zone

c)

Atmosphere

d)

Presence of two or more stars in its system

30.

Why is Earth called “the living planet?”

a)

It sustains life.

b)

It has atmosphere

c)

It has water at the surface

d)

All of the above

31.

Which among the set of planets are called terrestrial?

a)

Jupiter, Neptune, Uranus

b)

Mercury, Venus, Mars, Earth

c)

Earth, Venus, Mars, Jupiter

d)

Jupiter, Saturn, Uranus, Neptune

32.

How many percent of water comprises the Earth?

a)

15%

b)

30%

c)

50%

d)

70%

33.

Which one of the following figures represents the age of the earth?

a)

4.6 million years

b)

13.7 billion years

c)

4.6 billion years

d)

13.7 trillion years

34.

Which of the following scientific theories on the origin of the universe states that the universe's density and matter remains the same throughout the time?

a)

Big Bang Theory

b)

Inflation Theory

c)

Steady State Theory

d)

String Theory

35.

Which of the following theories on the origin of the universe states that a star or a comet passed by the sun to draw out a stream of solar gas that condensed to form the planets?

a)

Encounter Hypothesis

b)

Tidal Hypothesis

c)

Collision Theory

d)

Vortex Theory

36.

The study of Earth and the universe around it.

a)

Earth Science

b)

Life Science

c)

Physical Science

37.

What makes human and other living organisms capable to live on Earth?

a)

Earth can provide food for the organism

b)

Earth can protect the organism from any possible threat

c)

Earth’s temperature is mostly hot compared to other planets

d)

Earth has the right amount of temperature, water, good atmosphere, and favorable climate

38.

What is the name of the galaxy in which Earth is located?

a)

Big Band

b)

Milky Way

c)

Mars

d)

Universe

39.

Which of the following statements best describes a galaxy?

a)

A system of planets with an elliptical orbit

b)

A giant nuclear reactor held together by gravity

c)

A cloud that produces stars

d)

A system of gas, dust and billions of stars held together by gravity

40.

What two elements mostly make up stars?

a)

Hydrogen and Oxygen

b)

Hydrogen and Helium

c)

Helium and Oxygen

d)

Hydrogen and Nitrogen

41.

Temperature and pressure ___ as you move towards the center of the Earth.

a)

decrease

b)

increase

c)

neither answer is correct.

42.

Which layer is the coolest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

43.

Which layer is the hottest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

44.

Which layer of the Earth is the THICKEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

45.

Which layer of the Earth is the THINNEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

46.

Which layer is shown in red?

a)

crust

b)

mantle

c)

outer core

d)

inner core

47.

Which layer of the Earth is shown in ORANGE?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

48.

Which layer of the Earth is shown in YELLOW?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

49.

Which layer of the Earth is shown in BROWN?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

50.

This layer is a solid ball of metal.

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

51.

What dwarf planet was downgraded from planetary status in 2006?

a)

Mercury

b)

Uranus

c)

Neptune

d)

Pluto

52.

According to the nebular theory, did the planets start forming before or after the Sun ignited?

a)

The planets started forming during the time the Sun ignited.

b)

The planets started forming before the Sun ignited.

c)

The planets started forming after the Sun ignited.

53.

What is the solar system?

a)

The sun

b)

The planets

c)

The sun and planets ONLY

d)

The sun, planets, and all other objects that orbit the sun

54.

Which planet is the closest to our sun?

a)

Mars

b)

Earth

c)

Mercury

d)

Venus

55.

Which planet is the farthest away from our sun?

a)

Mars

b)

Jupiter

c)

Neptune

d)

Uranus

56.

Why do the planets orbit the sun?

a)

They don't, the planets orbit the Earth

b)

Because Science

c)

The sun is so massive that it has a very large gravitational pull, which causes objects to orbit it

d)

Because they want to

57.

A giant cloud of dust and gas formed out solar system.

a)

True

b)

False

58.

Which planet has a Big Red Spot?

a)

Mars

b)

Jupiter

c)

Neptune

d)

Venus

59.

The majority of asteroids are found between the orbits of which among the following?

a)

Mars and Jupiter

b)

Earth and Mars

c)

Jupiter and Saturn

d)

Saturn and Uranus

60.

What is most likely to be found in a nebula?

a)

planets

b)

asteroids

c)

stars

d)

gas clouds

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