Earth's Structure and Composition: Interactive Learning Quizzes

Question 1

What is the primary composition of the Earth's crust?

Accepted Answer

Rock and minerals

Answer

Iron and nickel

Answer

Gas and water

Question 2

Which of the following is a characteristic of the mantle?

Accepted Answer

Convective

Answer

Solid

Answer

Liquid

Question 3

Which of the following processes occurs within the mantle?

Accepted Answer

Convection currents

Answer

Plate tectonics

Answer

Volcanic eruptions

Question 4

What is the name of the outermost layer of the Earth's core?

Accepted Answer

Outer core

Answer

Inner core

Answer

Mantle

Question 5

What is the primary cause of plate tectonics?

Accepted Answer

Convection currents in the mantle

Answer

Tidal forces from the Moon

Answer

Volcanic eruptions

Question 6

Which of the following is NOT a layer of the Earth's interior?

Accepted Answer

Atmosphere

Answer

Crust

Answer

Mantle

Answer

Core

Question 7

Which layer of the Earth is responsible for the movement of tectonic plates?

Accepted Answer

Mantle

Answer

Crust

Answer

Outer Core

Question 8

What is the primary material that makes up the Earth's mantle?

Accepted Answer

Silicates

Answer

Iron

Answer

Nickel

Question 9

Which layer of the Earth is the thickest?

Accepted Answer

Mantle

Answer

Crust

Answer

Core

Question 10

What is the name of the hot, liquid layer of the Earth that surrounds the core?

Accepted Answer

Mantle

Answer

Crust

Answer

Core

Answer

Atmosphere

Question 11

Which type of rock is formed when magma cools?

Accepted Answer

Igneous

Answer

Metamorphic

Answer

Sedimentary

Question 12

What generates the Earth's magnetic field?

Accepted Answer

Electrical currents in the Earth's core

Answer

The rotation of the Earth

Answer

The movement of the tectonic plates

Answer

The sun's radiation

Question 13

The process by which rocks transform from one type to another is called:

Accepted Answer

Metamorphism

Answer

Weathering

Answer

Erosion

Question 14

The theory proposing that Earth's continents were once joined together is called:

Accepted Answer

Continental drift

Answer

Plate tectonics

Answer

Seafloor spreading

Question 15

Which of the following is the outermost and thinnest layer of the Earth?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Question 16

Which of the following is NOT a characteristic of the Earth's crust?

Accepted Answer

Dense

Answer

Thin

Answer

Solid

Question 17

What is the main component of the Earth's mantle?

Accepted Answer

Rock

Answer

Iron

Answer

Nickel

Question 18

Which layer of the Earth is believed to be responsible for the Earth's magnetic field?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 19

What is the name of the boundary between the Earth's crust and mantle?

Accepted Answer

Moho

Answer

Lithosphere

Answer

Asthenosphere

Question 20

Which type of rock is abundant in the Earth's crust?

Accepted Answer

Granite

Answer

Basalt

Answer

Peridotite

Question 21

Which theory explains the motion of the Earth's tectonic plates and the formation of the Earth's layers?

Accepted Answer

Plate tectonics

Answer

Continental drift

Answer

Geological uniformitarianism

Question 22

Which layer of the Earth is the hottest?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Answer

Lithosphere

Question 23

What is the primary composition of the Earth's crust?

Accepted Answer

Silicate rocks

Answer

Iron and nickel

Answer

Water and gases

Answer

Metallic minerals

Question 24

What is the approximate thickness of the Earth's crust?

Accepted Answer

10-100 km

Answer

100-1000 km

Answer

1000-5000 km

Answer

5000-10000 km

Question 25

Which of the following is a characteristic of the outer core?

Accepted Answer

Molten and metallic

Answer

Solid and dense

Answer

Gaseous and radioactive

Answer

Liquid and silicate-rich

Question 26

Which process is responsible for the formation of new crustal material?

Accepted Answer

Magma solidification

Answer

Erosion

Answer

Subduction

Answer

Metamorphism

Question 27

What is the name of the boundary between the crust and the mantle?

Accepted Answer

Mohorovičić discontinuity

Answer

Lithosphere

Answer

Asthenosphere

Answer

Gutenberg discontinuity

Question 28

Which technology is used to study the interior of the Earth?

Accepted Answer

Seismograph

Answer

Microscope

Answer

Telescope

Answer

Barometer

Question 29

What force causes the thicker sections of the Earth's crust to move?

Accepted Answer

Convection currents in the mantle

Answer

Gravitational pull of the Moon

Answer

Rotation of the Earth

Answer

Magnetic field of the Earth

Question 30

What is the name of the central part of the Earth?

Accepted Answer

Core

Answer

Geosphere

Answer

Mantle

Answer

Crust

Question 31

What process causes tectonic plates to move?

Accepted Answer

Convection currents

Answer

Radiation

Answer

Diffusion

Answer

Conduction

Question 32

Which type of crust is thicker and less dense than oceanic crust?

Accepted Answer

Continental

Answer

Granitic

Answer

Basaltic

Answer

Volcanic

Question 33

What is the purpose of the Earth's magnetic field?

Accepted Answer

Shields the Earth from harmful radiation

Answer

Controls the tides

Answer

Provides heat

Answer

Creates the seasons

Question 34

Which layer of the Earth do earthquakes occur in?

Accepted Answer

Crust

Answer

Inner Core

Answer

Mantle

Answer

Outer Core

Question 35

What is the main type of rock found in the Earth's crust?

Accepted Answer

Silicate-rich rocks

Answer

Gaseous rocks

Answer

Carbonate rocks

Answer

Metallic rocks

Question 36

What is the estimated temperature at the center of the Earth's inner core?

Accepted Answer

5,200 - 6,000°C

Answer

3,500 - 4,000°C

Answer

2,500 - 3,000°C

Answer

1,000 - 2,000°C

Question 37

What is the main process by which heat is transferred from the Earth's interior to the surface?

Accepted Answer

Convection

Answer

Radiation

Answer

Conduction

Question 38

Which region of the Earth is composed primarily of iron and nickel?

Accepted Answer

Core

Answer

Crust

Answer

Atmosphere

Answer

Mantle

Question 39

Which of the following is NOT a method used to study the Earth's internal structure?

Accepted Answer

Fossils

Answer

Seismic waves

Answer

Gravity measurements

Answer

Volcanic eruptions

Question 40

What is the approximate radius of the Earth's inner core?

Accepted Answer

1,220 km

Answer

2,900 km

Answer

6,371 km

Answer

3,480 km

Question 41

Which layer of the Earth is the outermost and what do we live on?

Accepted Answer

Crust

Answer

Mantle

Answer

Outer core

Question 42

What is the main difference between the Earth's crust and the mantle?

Accepted Answer

Composition

Answer

Thickness

Answer

Density

Question 43

What is the Earth's mantle mainly made of?

Accepted Answer

Silicate rocks

Answer

Organic matter

Answer

Metals like iron and nickel

Answer

Gases and water

Question 44

Which of the following is an example of a rock formed from sediment?

Accepted Answer

Sandstone

Answer

Basalt

Answer

Granite

Answer

Marble

Question 45

How does the Earth's magnetic field help protect us?

Accepted Answer

By deflecting harmful radiation from the sun

Answer

By controlling the Earth's rotation

Answer

By creating our atmosphere

Question 46

Which layer of the Earth generates its magnetic field?

Accepted Answer

Outer core

Answer

Mantle

Answer

Inner core

Answer

Crust