Earth Science for Year 5: Explore the Structure of Our Planet

Question 1

Which layer of the Earth has the highest temperature?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Answer

Atmosphere

Question 2

Which layer of the Earth is the warmest?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Answer

Atmosphere

Question 3

Which layer of the Earth is the thickest and takes up the most space?

Accepted Answer

Mantle

Answer

Crust

Answer

Core

Question 4

What part of the Earth is responsible for carrying heat?

Accepted Answer

The Mantle

Answer

The Crust

Answer

The Core

Answer

The Atmosphere

Question 5

Which of the following is the correct order of the Earth's layers from the center to the surface?

Accepted Answer

Core, Mantle, Crust

Answer

Crust, Mantle, Core

Answer

Mantle, Crust, Core

Answer

Core, Crust, Mantle

Question 6

True or False: The Earth's core is made up of solid iron.

Accepted Answer

False

Answer

True

Question 7

What is the name of the process that creates new crust at the mid-ocean ridges?

Accepted Answer

Seafloor spreading

Answer

Subduction

Answer

Collision

Answer

Erosion

Question 8

Which of the following is a major factor that drives the movement of tectonic plates?

Accepted Answer

Convection currents in the mantle

Answer

The Earth's rotation

Answer

The pull of the moon

Answer

The force of gravity

Question 9

What is the name of the supercontinent that existed about 250 million years ago?

Accepted Answer

Pangea

Answer

Gondwana

Answer

Laurasia

Answer

Rodinia

Question 10

Which of the following is a renewable resource?

Accepted Answer

Wind power

Answer

Coal

Answer

Natural gas

Answer

Petroleum

Question 11

What is the very outermost layer of the Earth, where we live?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Question 12

Which part of the Earth is the hottest, a solid ball in the middle of the planet?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 13

Which layer of the Earth is mostly made of iron and nickel, like a giant magnet?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 14

What process inside the Earth's mantle causes rocks to move and change the surface?

Accepted Answer

Convection

Answer

Subduction

Answer

Weathering

Question 15

What is the name of the boundary between the crust and the mantle, where the rocks change?

Accepted Answer

Mohorovičić discontinuity

Answer

Gutenberg discontinuity

Answer

Lehmann discontinuity

Question 16

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

Accepted Answer

Dense

Answer

Thin

Answer

Solid

Question 17

How are the Earth's layers different from each other?

Accepted Answer

Temperature, what they're made of, and how tightly packed they are

Answer

Size, shape, and colour

Answer

Thickness, hardness, and roughness

Question 18

What is the solid layer beneath the Earth's crust called?

Accepted Answer

Lithosphere

Answer

Asthenosphere

Answer

Mesosphere

Question 19

Which of these is NOT a property of the Earth's crust?

Accepted Answer

Made of molten rock

Answer

Thin and solid

Answer

Contains mountains and oceans

Question 20

What is the name of the process that causes the Earth's crust to move and change shape?

Accepted Answer

Plate tectonics

Answer

Erosion

Answer

Weathering

Question 21

Which layer of the Earth is on the outside?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Question 22

Which layer of the Earth is made up of melted rock?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 23

How thick is the Earth's crust?

Accepted Answer

10-50 km

Answer

100-500 km

Answer

1000-5000 km

Question 24

What layer separates the crust from the mantle?

Accepted Answer

Asthenosphere

Answer

Lithosphere

Answer

Mesosphere

Question 25

Which layer of the Earth is on the outside?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Question 26

Which layers make up the Earth, starting from the center and moving outward?

Accepted Answer

Core, Mantle, Crust

Answer

Crust, Core, Mantle

Answer

Mantle, Core, Crust

Question 27

What is the innermost layer of the Earth?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 28

Which layer of the Earth is made mostly of solid rock?

Accepted Answer

Crust

Answer

Mantle

Question 29

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

Accepted Answer

Silicates

Answer

Nickel

Question 30

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

Accepted Answer

50 km

Question 31

Which type of rock is most commonly found in the Earth's crust?

Accepted Answer

Sedimentary

Answer

Metamorphic

Question 32

What causes the movement of the Earth's tectonic plates?

Accepted Answer

Convection currents in the mantle

Answer

Gravitational pull of the moon

Question 33

Which of these is a boundary where tectonic plates move away from each other?

Accepted Answer

Divergent

Question 34

What is the name of the supercontinent that existed millions of years ago?

Accepted Answer

Pangea

Answer

Laurasia

Question 35

What is the name of the thin, outermost layer of the Earth?

Accepted Answer

Crust

Answer

Mantle

Answer

Core

Question 36

Which layer of the Earth is the heaviest?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Question 37

How are igneous rocks formed?

Accepted Answer

Cooling and hardening of molten rock

Answer

Breaking down of existing rocks

Answer

Compressing and heating of existing rocks

Answer

Changing of existing rocks by heat and pressure

Question 38

Which of the following is a renewable resource found in the Earth's crust?

Accepted Answer

Water

Answer

Oil

Answer

Minerals

Answer

Coal

Question 39

Which layer of the Earth is the hottest?

Accepted Answer

Core

Answer

Crust

Answer

Mantle

Answer

Atmosphere

Question 40

Which of these shows the layers of the Earth from the center to the surface?

Accepted Answer

Inner Core, Outer Core, Mantle, Crust

Answer

Crust, Mantle, Outer Core, Inner Core

Answer

Mantle, Crust, Inner Core, Outer Core

Answer

Crust, Outer Core, Inner Core, Mantle

Question 41

Which layer of the Earth is the hottest?

Accepted Answer

Core

Answer

Atmosphere

Answer

Mantle

Answer

Crust

Question 42

Which layer of the Earth is thickest?

Accepted Answer

Mantle

Answer

Core

Answer

Crust

Answer

Atmosphere

Question 43

What is the main substance found in the Earth's crust?

Accepted Answer

Rocks

Answer

Water

Answer

Gases

Answer

Metals

Question 44

Which characteristic describes the Earth's mantle?

Accepted Answer

Semi-solid and very hot

Answer

Gaseous and hot

Answer

Solid and cold

Answer

Liquid and cold

Question 45

What force drives the movement of Earth's tectonic plates?

Accepted Answer

Convection currents in the mantle

Answer

Wind patterns on the Earth's surface

Answer

Tidal forces from the moon

Answer

Radiation from the sun

Question 46

At which type of boundary do two tectonic plates move apart?

Accepted Answer

Divergent boundary

Answer

Convergent boundary

Answer

Transform boundary

Answer

Collision boundary

Question 47

What is the process by which oceanic crust returns to the mantle?

Accepted Answer

Subduction

Answer

Metamorphism

Answer

Orogeny

Answer

Accretion