inside earth

core

The dense, iron core forms the center of the Earth. Scientists know that the core is metal from studying metallic meteorites and the Earths density. Seismic waves show that the outer core is liquid, while the inner core is solid. Movement within Earths outer liquid iron core creates Earths magnetic field. These convection currents form in the outer core because the base of the outer core is heated by the even hotter inner core.

mantle

Beneath the crust is the mantle. The mantle is made of hot, solid rock. Through the process of conduction, heat flows from warmer objects to cooler objects (Figure 6.4). The lower mantle is heated directly by conduction from the core. Hot lower mantle material rises upwards (Figure 6.5). As it rises, it cools. At the top of the mantle it moves horizontally. Over time it becomes cool and dense enough that it sinks. Back at the bottom of the mantle, it travels horizontally. Eventually the material gets to the location where warm mantle material is rising. The rising and sinking of warm and cooler material is convection. The motion described creates a convection cell.

textbook_image

lithosphere and asthenosphere

Lithosphere and asthenosphere are layers based on physical properties. The outermost layer is the lithosphere. The lithosphere is the crust and the uppermost mantle. In terms of physical properties, this layer is rigid, solid, and brittle. It is easily cracked or broken. Below the lithosphere is the asthenosphere. The asthenosphere is also in the upper mantle. This layer is solid, but it can flow and bend. A solid that can flow is like silly putty.

textbook_image

crust

Crust, mantle, and core differ from each other in chemical composition. Its understandable that scientists know the most about the crust, and less about deeper layers (Figure 6.3). Earths crust is a thin, brittle outer shell. The crust is made of rock. This layer is thinner under the oceans and much thicker in mountain ranges.

meteorites

Scientists study meteorites to learn about Earths interior. Meteorites formed in the early solar system. These objects represent early solar system materials. Some meteorites are made of iron and nickel. They are thought to be very similar to Earths core (Figure 6.2). An iron meteorite is the closest thing to a sample of the core that scientists can hold in their hands!

textbook_image

continental crust

Continental crust is much thicker than oceanic crust. It is 35 kilometers (22 miles) thick on average, but it varies a lot. Continental crust is made up of many different rocks. All three major rock types igneous, metamorphic, and sedimentary are found in the crust. On average, continental crust is much less dense (2.7 g/cm3) than oceanic crust. Since it is less dense, it rises higher above the mantle than oceanic crust.

oceanic crust

There are two kinds of crust. Oceanic crust is made of basalt lavas that flow onto the seafloor. It is relatively thin, between 5 to 12 kilometers thick (3 - 8 miles). The rocks of the oceanic crust are denser (3.0 g/cm3 ) than the rocks that make up the continents. Thick layers of mud cover much of the ocean floor.

textbook_image

how do we know about earths interior

If someone told you to figure out what is inside Earth, what would you do? How could you figure out what is inside our planet? How do scientists figure it out?

seismic waves

Geologists study earthquake waves to see Earths interior. Waves of energy radiate out from an earthquakes focus. These are called seismic waves (Figure 6.1). Seismic waves change speed as they move through different materials. This causes them to bend. Some seismic waves do not travel through liquids or gases. Scientists use all of this information to understand what makes up the Earths interior.

textbook_image

instructional diagrams

description_image

The diagram shows the different layers of the earth. The earth is composed of mainly 3 layers: crust, mantle and the core. The crust is the outer layer of the earth. It is a thin layer between 0-33 km thick. The crust is the solid rock layer upon which we live. The mantle is the widest section of the earth. The mantle is made up of semi-molten rocks called magma. Mantle can be further divided into upper mantle and lower mantle. Upper mantle lies between 33-670 km below the earth's crust and the rock is typically hard in this layer. Lower mantle lies between 670-2900 km below the earth's crust and consists of semi-molten rocks. Core is the innermost layer of the earth. It is further divided into upper core and inner core. Inner core is the center and the hottest part of the earth. It is solid and made up of iron and nickel with temperatures of up to 5500C. It lies between 5150-6370km below earth's crust. Outer core is the layer surrounding the inner core. It is a liquid layer made up of iron and nickel with temperatures similar to inner core. It lies between 2900-5150 km below the earth's crust.

description_image

This diagram shows the nature of earthquakes. An earthquake is sudden ground movement. This movement is caused by the sudden release of the energy stored in rocks. An earthquake happens when so much stress builds up in the rocks that the rocks break and energy is transmitted by seismic waves. As depicted in the diagram, Focus is the point where the rock ruptures are the earthquakes focus. The area just above the focus, on the land surface, is the earthquakes epicenter.

description_image

This diagram shows the structure of the Earth. The outer layer is the crust and this is the thinnest layer. The mantle lies beneath the crust. There is an upper mantle and a lower mantle and they are formed of hot, solid rock. The outer core lies beneath the lower mantle and this is a fluid layer. The inner core is a solid ball and is the hottest of the layers. This is the Earth's innermost part. The distance from the crust to the center of the Earth is 6371 kilometers.

description_image

This diagram shows the various parts or layers of the earth. The outermost layer is the Crust. The crust is the thinnest layer of the earth. Below the crust lies the mantle. The mantle is made of hot, solid rock. Below the mantle lies the outer core. The outer core of the Earth is a fluid layer. The inner core is the Earth's innermost part. It is a solid ball with a radius of about 1220 kilometers. The inner core is the hottest of the layers. The temperature at the inner core boundary is approximately 5700 K.

description_image

The diagram shows the different layers of the Earth, from the inner core to the atmosphere. The three main layers of the Earth are the crust, the mantle, and the core. The crust is the thin, brittle outer shell that covers the Earth. There are two types of crusts: oceanic and continental. Oceanic crust is what we call the ocean floor. It is composed mostly of dense volcanic rock and mud that flowed to the bottom of the ocean. Continental crust makes up what we call the land masses or continents. It is formed three different types of rocks: igneous, metamorphic, and sedimentary. Under the crust is the Earths mantle, which is made of hot, solid rock. The mantle is also divided into two kinds: lower and upper. The lower mantle gets its heat directly from the Earths core. Finally, the innermost layer of the Earth is called the core, which is made up of dense, iron core. The outer core is liquid, whereas the inner core is solid. The liquid outer core creates the Earths magnetic fields. The inner core is the innermost layer and comprises the center of the Earth.

description_image

The diagram illustrates the cross section of the Earth's crust and what causes Earthquakes. A Fault is a fracture in the Earths crust separating two blocks of the Earth's crust that slide against one another during an earthquake. The Epicenter is the point on the Earths surface located directly over the Focus, where the most violent tremors are felt. The Focus is also a point in the Earths crust where an earthquake is triggered. Also called the Hypocenter. Shown also are the Wave fronts or seismic waves which is a series of vibrations generated at the focus that disperse in all directions, causing shaking of the Earths surface. A fault scarp is a small step or offset on the ground surface where one side of a fault has moved vertically with respect to the other. They are characterized by uneven landscapes. Fault scarps may be only a few centimeters or many meters high.

description_image

This diagram shows how body waves from and earthquake travel through the Earth. There are two types of body waves: P-waves and S-waves. Both types originate at the earthquake's epicenter. P-waves, or primary waves, travel faster than S-waves and are first to reach a seismometer. They can travel through solids, liquids, and gases, meaning they are able to penetrate the Earth's mantle, liquid outer core, and solid inner core. S-waves, or secondary waves, are about half as fast as P-waves and can only travel through solids. Therefore, they cannot penetrate the Earth's liquid outer core and only travel through the mantle. This creates a large section of the Earth at about 140 degrees away from the epicenter where there are no direct S-waves.

questions

Seismic waves travel

a. at the same speed

b. through all materials

-->  c. outwards in all directions

d. in a straight line

The lithosphere is

-->  a. the brittle crust and uppermost mantle

b. another name for the crust

c. where convection is strongest

d. the upper part of the mantle

Scientists know that Earths core is metal because of

a. the planets high overall density

b. the magnetic field

c. metallic meteorites

-->  d. all of these

Compared to continental crust, oceanic crust

a. is thicker

-->  b. is denser

c. more varied in its rock types

d. more magnetic

Heat in the mantle moves by

a. radiation

b. conduction

-->  c. convection

d. heat flow

rock from space that strikes Earth

a. crust

b. asthenosphere

c. outer core

d. mantle

-->  e. meteorite

f. lithosphere

g. inner core

Earths middle layer

a. crust

b. asthenosphere

c. outer core

-->  d. mantle

e. meteorite

f. lithosphere

g. inner core

bendable layer of Earth in the upper mantle that lies beneath the lithosphere

a. crust

-->  b. asthenosphere

c. outer core

d. mantle

e. meteorite

f. lithosphere

g. inner core

Some seismic waves (S-waves) cannot travel through the outer core so we know it is molten.

-->  a. true

b. false

Earths outer layer

-->  a. crust

b. asthenosphere

c. outer core

d. mantle

e. meteorite

f. lithosphere

g. inner core

The lithosphere is solid but it can flow.

a. true

-->  b. false

brittle layer of Earth consisting of the crust and uppermost mantle

a. crust

b. asthenosphere

c. outer core

d. mantle

e. meteorite

-->  f. lithosphere

g. inner core

liquid part of Earths dense metallic center

a. crust

b. asthenosphere

-->  c. outer core

d. mantle

e. meteorite

f. lithosphere

g. inner core

The mantle and the asthenosphere are different names for the same thing.

a. true

-->  b. false

solid part of Earths dense metallic center

a. crust

b. asthenosphere

c. outer core

d. mantle

e. meteorite

f. lithosphere

-->  g. inner core

We can hold something like the core in our hands: a metallic meteorite.

-->  a. true

b. false

Meteorites may represent material from the early solar system.

-->  a. true

b. false

The mantle is divided into the inner mantle and outer mantle.

a. true

-->  b. false

Earthquakes send waves of energy through rocks inside Earth.

-->  a. true

b. false

Meteorites formed a long time ago in the early solar system.

-->  a. true

b. false

Earths crust is made of solid rock.

-->  a. true

b. false

Lava flows formed the oceanic crust.

-->  a. true

b. false

The continental crust contains only igneous rock.

a. true

-->  b. false

Heat travels from the top to the bottom of the mantle.

a. true

-->  b. false

Earths core is very dense.

-->  a. true

b. false

Convection currents occur in the inner core.

a. true

-->  b. false

Plate tectonics is the theory that the lithosphere is divided into plates that move over Earths surface.

-->  a. true

b. false

Compared with the other layers of Earth, the crust is very

a. thick.

b. warm.

-->  c. brittle.

d. two of the above

Seismic waves reveal information about Earths interior because they travel

-->  a. at different speeds through different materials.

b. only through liquids and gases.

c. at the same speed as sound.

d. only in straight lines.

Earths layers differ from one another in

a. chemical makeup.

b. temperature.

c. state of matter.

-->  d. all of the above

Compared to oceanic crust, continental crust is

a. denser.

-->  b. thicker.

c. less variable.

d. all of the above

Earths magnetic field is created by movements in Earths

a. inner core.

-->  b. outer core.

c. mantle.

d. crust.

The lithosphere is

a. solid.

b. rigid.

c. able to flow.

-->  d. two of the above

The consistency of the asthenosphere is most like

a. hard plastic.

b. frozen water.

-->  c. silly putty.

d. solid metal.

diagram questions

question_image

Which label refers to the mantle?

a. Y

-->  b. S

c. N

d. C

question_image

Which letter represents the Mantle?

a. N

-->  b. S

c. C

d. Y

question_image

What is the part of the earth corresponding with the letter U?

-->  a. SOLID IRON INNER CORE

b. MANTLE

c. CRUST

d. LIQUID IRON OUTER CORE

question_image

Which label shows the core?

a. X

-->  b. U

c. N

d. P

question_image

Identify the mantle of the earth

a. X

b. M

-->  c. T

d. R

question_image

Where is the outer core?

-->  a. R

b. T

c. X

d. M

question_image

Which label refers to the crust?

a. P

b. A

-->  c. E

d. X

question_image

Which label shows the lower mantle?

a. Y

b. P

c. W

-->  d. X

question_image

Which letter represents the atmosphere?

a. P

-->  b. A

c. E

d. X

question_image

Which label identifies the layer directly beneath the lower mantle?

a. X

b. P

-->  c. Y

d. W

question_image

Which represents the Earth's crust?

a. A

b. X

-->  c. E

d. W

question_image

Identify the crust in this picture

a. R

b. M

-->  c. P

d. D

question_image

Which label shows the crust?

a. M

-->  b. P

c. R

d. D

question_image

Which label refers to the crust?

-->  a. T

b. M

c. P

d. U

question_image

Which label shows the outer core?

a. M

b. P

-->  c. U

d. R

question_image

Identify the thin, brittle outer shell of the Earth.

a. R

-->  b. T

c. M

d. P

question_image

What is the Earth part labeled H?

-->  a. MANTLE

b. OUTER CORE

c. INNER CORE

d. CRUST

question_image

What is the part of the earth corresponding with the letter H?

a. CRUST

b. OUTER CORE

c. INNER CORE

-->  d. MANTLE

question_image

Where is the mantle?

a. V

-->  b. H

c. N

d. X

question_image

Where is the crust?

a. H

b. X

-->  c. N

d. V

question_image

What letter does the inner core receive?

-->  a. R

b. Y

c. P

d. M

question_image

Which label shows the core?

a. Y

-->  b. R

c. N

d. P

question_image

Identify the core in this picture

-->  a. R

b. P

c. M

d. Y

question_image

What covers P?

a. M

-->  b. Y

c. R AND M

d. R

question_image

Where is the earths core?

a. P

-->  b. R

c. M

d. Y

question_image

Identify the inner core in this picture

a. K

-->  b. W

c. A

d. V

question_image

Which of the labels in the diagram identifies the layer of the Earth that is made of hot, solid rock?

a. V

-->  b. D

c. W

d. K

question_image

Where's the mantle located?

a. V

b. W

-->  c. D

d. K

question_image

Where is the crust

a. W

b. K

-->  c. V

d. H

question_image

What is M?

-->  a. INNER CORE

b. CRUST

c. OUTER CORE

d. CONVECTION ZONE

question_image

Which of the labeled elements the outer core of the earth?

a. U

b. Y

-->  c. N

d. H

question_image

Which layer of the earth is located between the atmosphere and mantle?

a. U

-->  b. Y

c. H

d. M

question_image

Which shows the layer of the Earth that is made of molten metal?

-->  a. U

b. F

c. Y

d. H

question_image

Which label indicates the earth's outer core?

a. X

b. P

c. E

-->  d. D

question_image

Which label refers to the mantle?

a. D

-->  b. P

c. E

d. X

question_image

Where is the core?

a. D

-->  b. E

c. P

d. X

question_image

What letter represents the Atmosphere?

-->  a. C

b. L

c. M

d. N

question_image

Where does convection occur?

a. Y

-->  b. W

c. A

d. L

question_image

Where is the inner core?

a. L

b. N

c. C

-->  d. Y

question_image

Which label refers to the mantle?

a. A

b. M

-->  c. E

d. R

question_image

Which letter represents the Crust?

a. R

-->  b. A

c. E

d. M

question_image

Identify the layer that is heated directly by conduction from the core.

a. R

b. A

c. M

-->  d. E

question_image

Which layer is labeled R?

a. INNER CORE

b. CRUST

c. MANTLE

-->  d. OUTER CORE

question_image

Which letter depicts the earth's core?

a. E

b. A

-->  c. M

d. R

question_image

Which label shows the core?

a. J

b. V

-->  c. H

d. D

question_image

Which label shows the crust?

a. J

b. D

-->  c. V

d. H

question_image

What is D in this image of the Earth?

a. CRUST

-->  b. MANTLE

c. SOLID INNER CORE

d. MOLTEN OUTER CORE

question_image

Which label shows the crust?

a. R

b. S

-->  c. F

d. A

question_image

Which letter represents the Mantle?

-->  a. A

b. S

c. F

d. R

question_image

What is the most external layer of earth?

a. A

b. R

c. S

-->  d. F

question_image

Which is the liquid portion of the Earth's core?

a. A

-->  b. S

c. R

d. S AND R

question_image

Identify V

a. INNER CORE

b. OUTER CORE

c. CRUST

-->  d. MANTLE

question_image

Which label shows the mantle?

a. R

-->  b. V

c. P

d. N

question_image

What surrounds V?

-->  a. CRUST

b. SOLID IRON INNER CORE

c. MANTLE

d. LIQUID IRON OUTER CORE

question_image

Which label refers to the Earth's crust?

a. K

b. R

c. S

-->  d. J

question_image

Which label shows the Earth's Mantle?

a. J

-->  b. S

c. K

d. R

question_image

Which layer of the earth is a magma like liquid layer that surrounds the Inner Core and creates Earth's magnetic field?

a. J

-->  b. K

c. S

d. R

question_image

What letter corresponds to the layer that's between the inner core and mantle?

a. R

-->  b. K

c. S

d. J

question_image

What is the outer layer of the earth called?

a. MANTLE

b. OUTER CORE

-->  c. CRUST

d. INNER CORE

question_image

Identify the mantle in this picture

a. U

b. F

c. N

-->  d. X

question_image

Which label refers to the crust?

-->  a. F

b. U

c. X

d. N

question_image

Which is the state of the material in letter N?

a. TWO OF THE ABOVE

b. GAS

-->  c. LIQUID

d. SOLID

question_image

Which label shows the crust?

a. E

b. X

c. M

-->  d. N

question_image

Which of the labeled elements shows the crust of the earth?

a. E

b. X

c. M

-->  d. N

question_image

Identify the lower mantle of the earth:

a. X

b. T

-->  c. M

d. E

question_image

Where is the lower mantle on this diagram?

-->  a. M

b. X

c. E

d. T

question_image

Which label identifies the layer directly under the lower mantle?

-->  a. X

b. E

c. M

d. T

question_image

Which label represents the earth's crust?

a. W

b. F

-->  c. K

d. L

question_image

Identify with layer of the Earth is made of hot, solid rock.

-->  a. W

b. K

c. K AND W

d. F

question_image

Which label shows the Earth's core?

-->  a. F

b. W

c. NONE

d. K

question_image

What connects the outer layer with the earth's core?

a. THE OUTER LAYER

b. THE INNER LAYER

c. THERE IS NO CONNECTION

-->  d. MANTLE

question_image

Where is the Lower Mantle?

-->  a. L

b. Y

c. J

d. U

question_image

The Upper Mantle

a. Y

b. L

c. J

-->  d. U

question_image

By what letter is the mantle represented in the diagram?

a. A

b. W

-->  c. H

d. P

question_image

What does letter A represents?

a. OUTER CORE

-->  b. CRUST

c. INNER CORE

d. MANTLE

question_image

Which part of the earth is responsible for earth's magnetic field?

-->  a. W

b. A

c. P

d. H

question_image

Select the mantle of the Earth.

-->  a. H

b. P

c. A

d. W

question_image

Which layer of the earth is located directly under the crust?

-->  a. H

b. P

c. A

d. W

question_image

Which label marks the focus?

-->  a. V

b. Y

c. W

d. C

question_image

Which label represents the epicenter?

a. V

b. Y

-->  c. C

d. W

question_image

What does the letter T represent?

a. WAVE FRONT

b. EPICENTER

c. FOCUS

-->  d. FAULT SCARP

question_image

Which label marks the wave fronts?

a. E

-->  b. U

c. R

d. Y

question_image

Identify V

-->  a. FAULT TRACE

b. EPICENTER

c. FAULT SCARP

d. FOCUS

question_image

Which label refers to the fault trace?

-->  a. V

b. N

c. P

d. T

question_image

Which letter represents a fault trace?

a. N

b. D

-->  c. V

d. T

question_image

Where is it most likely to experience these phenomena?

a. IN THE INNERMOST REGIONS OF THE PLANET

b. IN SUBDUCTION ZONES

c. NEAR URBAN REGIONS

-->  d. NEAR PLATE BOUNDARIES

question_image

What label refers to the earthquake focus?

a. S

b. N

-->  c. A

d. E

question_image

Where is the epicenter?

a. A

b. N

-->  c. E

d. S

question_image

Which letter represents the focus?

a. S

-->  b. E

c. N

d. A

question_image

Which label shows the epicenter?

a. X

b. S

-->  c. Y

d. V

question_image

What surrounds E?

a. K

b. S

c. F

-->  d. H

question_image

Which layer of the earth sits directly under the mantle?

a. terracore

b. crust

-->  c. outer core

d. inner core

question_image

Identify the part of the earth's interior that is liquid.

a. Crust

b. Mantle

-->  c. Outer core

d. Inner core

question_image

How many parts are there to the earth's ground?

a. 2

-->  b. 4

c. 5

d. 3

question_image

How deep does the earth's crust read?

a. 100m deep

b. 150km deep

-->  c. 100km deep

d. 90km deep

question_image

Which layer is above the inner core?

a. Mantle

-->  b. Outer core

c. Crust

d. Surface

question_image

What is in the center of the earth?

-->  a. Solid iron inner core

b. mantle

c. crust

d. liquid iron

question_image

How many layers constitute the earth's surface?

a. 1

-->  b. 4

c. 2

d. 3

question_image

How many layers does the Earth have?

a. 2

-->  b. 4

c. 3

d. 5

question_image

What is the core of the Earth made up of?

-->  a. Solid iron

b. Crust

c. Nothing

d. Liquid iron

question_image

What lies between the solid inner core and the crust?

a. Molten inner core

b. Deep outer core

c. Mantle

-->  d. molten outer core

question_image

What exists at the center of the Earth?

a. Crust/mantle

b. Molten inner core

-->  c. Solid inner core

d. Molten outer core

question_image

What surrounds the solid inner core of the earth?

a. mantle

b. crust

-->  c. molten outer core

d. ocean

question_image

How many sections of the earth are there?

a. 2

b. 1

-->  c. 3

d. 4

question_image

What is the innermost part of the earth called?

-->  a. solid inner core

b. crust

c. mantle

d. molten outer core

question_image

Which layer is the deepest on earth?

a. Crust

b. Melted rock

-->  c. Inner core

d. Outer core

question_image

What layer is directly below the crust?

-->  a. melted rock

b. outer crust

c. mantle

d. core

question_image

How many layers intervene in the process of convection?

-->  a. 1

b. 2

c. 5

d. 3

question_image

Which layer of the earth is the cause why the plates of the Earth moves?

-->  a. Mantle

b. Inner Core

c. Crust

d. Melted Rock

question_image

What is the deepest layer of the earth?

a. atmosphere

-->  b. core

c. oceana

d. lithosphere

question_image

What is the physical property of Earth's inner core?

a. Liquid

-->  b. Rigid

c. Glass

d. Plastic

question_image

How many layers of the earth are classified as rigid?

-->  a. 4

b. 2

c. 6

d. 5

question_image

How many layers of the earth are there classified by chemical composition?

-->  a. 3

b. 6

c. 4

d. 5

question_image

What is the lowest level of the core?

a. Outer Core

b. Mesosphere

c. Ocean

-->  d. Inner Core

question_image

What is the outermost solid shell of a rocky planet or natural satellite, which is chemically distinct from the underlying mantle?

a. Mesosphere

b. Ocean

c. Lithosphere

-->  d. Crust

question_image

Which is the outer layer of the Earth?

a. Inner core

-->  b. Crust

c. Mantle

d. Outer core

question_image

What is the second layer of the Earth?

a. Crust

b. Inner Core

c. Outer Core

-->  d. Mantle

question_image

Which layer is the most directly close to the crust?

a. Atmosphere

b. Outer Core

c. Inner core

-->  d. Mantle

question_image

How many parts of the earth's core are shown in the picture?

a. 2

b. 3

c. 6

-->  d. 4

question_image

On which layer do humans live?

a. Inner core

b. Mantle

c. Outer core

-->  d. Crust

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What is the innermost part of the earth called?

-->  a. inner core

b. outer core

c. crust

d. mantle

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What is the deepest point of the layers?

a. 50 kilometers

b. 2900 kilometers

-->  c. 6378 kilometers

d. 5100 kilometers

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How many Earth layers are shown in this picture?

a. 5

b. 4

c. 3

-->  d. 7

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What would happen if the continental crust was denser than the oceanic crust?

a. The oceanic crust would be thinner

b. The lithosphere would be thinner

-->  c. The continental crust would sink

d. The oceanic and continental crusts would merge

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Which layer of the earth is liquid?

-->  a. outer core

b. inner core

c. mantle

d. crust

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How many layers are shown in the diagram?

a. 2

-->  b. 4

c. 5

d. 3

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Approximately how deep would you have to go into the Earth to reach the liquid iron core?

a. 1821 km

b. 1000 km

c. 150 km

-->  d. 871 km

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What is the layer between the lithosphere and magma ocean?

a. none

-->  b. asthenosphere

c. liquid iron core

d. lower mantle

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How many parts of the earth's core are shown in the picture?

a. 3

b. 6

-->  c. 5

d. 4

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What is the hottest inner most layer?

-->  a. Liquid iron core

b. Lithosphere

c. Asthenosphere

d. Lower Mantle

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What is the purpose of the liquid iron core?

a. needed to form oceans

b. to keep the core in place

-->  c. movement in the liquid iron core creates the earth's magnetic field

d. to maintain the gravity

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Which layer has the highest temperature?

-->  a. inner core

b. outer core

c. crust

d. mantle

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What is the outer layer of the earth?

a. outer core

-->  b. crust

c. inner core

d. mantle

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What is the outside layer of the earth called?

-->  a. Crust

b. Mantle

c. Outer core

d. Inner core

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How many layers of the earth consist of solid metal?

-->  a. 1

b. 3

c. 4

d. 2

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What is the hottest layer of the earth?

a. crust

-->  b. inner core

c. mantle

d. outer core

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Which layer of the earth is responsible for creating magnetic field?

a. crust

b. mantle

c. inner core

-->  d. core

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What is the inner layer of the Earth called?

-->  a. Earth's Core

b. Earth's Crust

c. Middle Layer

d. Earth's Mantle

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What layer is directly below the crust?

-->  a. mantle

b. inner layer

c. core

d. space

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How many layers does the Earth have?

a. 1

b. 4

c. 2

-->  d. 3

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How many layers of the Earth are shown?

a. two

-->  b. three

c. one

d. four

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What is the earth's outer layer called?

a. Earth's mantle

b. Earth's core

-->  c. Earth's crust

d. Equator

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Which part of the earth is of metallic composition?

a. Oceanic crust

b. Mantle

-->  c. Core

d. Continental crust

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What is located directly beneath the Earth's crust?

a. Mantle

-->  b. Radioactive material

c. Atmosphere

d. Core

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What is the innermost layer of the Earth?

a. Mantle

b. Radioactive material

c. Crust

-->  d. Core

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How many layers is the Earth divided into?

a. 1

b. 4

-->  c. 3

d. 2

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Where does the core break out of to cause a volcano?

a. Core

-->  b. Crust

c. Mantle

d. Radioactive material

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Which is the outer layer of the Earth?

a. Outer Core

b. Mantle

-->  c. Crust

d. Inner Core

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What lies between inner core and mantle?

-->  a. outer core

b. earth

c. iron

d. crust

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What material is the inner core comprised of?

a. Helium

b. Hydrogen

-->  c. Iron

d. Steel

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How many parts comprise the Earth's core?

a. 3

b. 1

c. 4

-->  d. 2

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How many parts of the earth's core are there?

a. 3

b. 5

c. 6

-->  d. 4

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This section is the thinnest section of the earth.

a. Mantle

b. Outer Core

-->  c. Crust

d. Inner Core

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What is the innermost part of the earth called?

a. mantle

-->  b. inner core

c. outer core

d. crust

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What lies below the crust?

a. solid inner core

b. outer core

c. molten

-->  d. mantle

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What is in the center of the Earth?

a. crust

b. molten outer core

c. mantle

-->  d. solid inner core

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What section of Earth lies directly beneath the crust?

-->  a. mantle

b. solid outer core

c. solid inner core

d. molten outer core

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How many layers of the Earth are named in the diagram?

a. 5

-->  b. 4

c. 6

d. 2

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How many layers of the earth are there?

a. 2

-->  b. 4

c. 5

d. 8

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What is the thinnest layer of the earth?

a. solid inner core

b. mantle

c. molten outer core

-->  d. The crust

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How many parts of the earth's core are there?

a. 1

b. 2

c. 3

-->  d. 4

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What is the innermost part of the earth called?

a. mantle

-->  b. inner core

c. outer core

d. crust

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What lies between the crust and core?

-->  a. mantle

b. outer core

c. inner core

d. molten outer core

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What is the distance from the crust to center of the inner core?

a. 2900km

b. 30km

-->  c. 6350km

d. 5900km

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How many parts of the earth's core are there?

a. 2

-->  b. 4

c. 3

d. 5

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At what temperature is it between the Earth's Core and Mantle?

a. 4300 degrees C

-->  b. 3700 degrees C

c. 1000 degrees C

d. 0 degrees C

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Which of the following is the hottest region?

-->  a. Inner core

b. Mantle

c. Crust

d. Core

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What is the deepest point the crust can reach?

a. 2891 kilometers

b. 1 kilometer

c. 6370 kilometers

-->  d. 40 kilometers

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What is the outermost section of the earth called?

-->  a. Crust

b. Solid iron inner core

c. Mantle

d. Liquid iron outer core

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Which layer lies between the crust and the outer core?

-->  a. Mantle

b. Outer core

c. Inner core

d. Crust

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Which layer is surrounding the inner core?

-->  a. Outer Core

b. Inner Core

c. Mantle

d. Crust

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What layer is above the mantle?

a. Outer Core

-->  b. Crust

c. Inner Core

d. Outer Mantle

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The part of Earth that comes right before the Outer Core is?

a. Crust

b. Water

c. Inner Core

-->  d. Mantle

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How many layers of Earth are shown?

a. five

b. three

c. one

-->  d. four

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How many types of core exists in the earth's surface?

a. 1

-->  b. 2

c. 3

d. 4

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What is the innermost part of the earth called?

a. outer core

b. mantle

-->  c. inner core

d. crust

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What would happen of the Earth's mantle was removed?

a. The Earth would remain the same.

-->  b. The Earth's crust would become too hot to sustain human life.

c. The Earth's outer core would become liquified.

d. The Earth's inner core would be flooded with water.

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Which layer is labeled 3?

a. Crust

b. Inner core

-->  c. Outer core

d. Mantle

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Which number represents the earth's crust?

a. 3

b. 4

c. 2

-->  d. 1

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That is the outermost layer of the Earth?

a. 4

-->  b. 1

c. 2

d. 3

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From the image shown, what is the layer number of the outer core layer?

a. 4

b. 1

c. 2

-->  d. 3

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How many layers are there below the Earth's crust?

a. 2

-->  b. 3

c. 1

d. 4

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This part of the earth is the solid rock layer upon which we live.

a. 2

b. 3

c. 4

-->  d. 1

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Will there be any changes if the number 1 layer disappears from the earth?

a. Not at all

b. Cannot determine from the given information

-->  c. Definitely

d. Maybe

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What is the layer below the crust called?

a. outer core

b. inner core

-->  c. Mantle

d. crust

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The lithosphere is composed mainly of what components?

a. inner core

b. outer core

c. lower mantle

-->  d. uppermost mantle and crusts

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What core does the mantle cover?

a. inner core

b. sediments

-->  c. outer core

d. crust

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What is the innermost layer of the earth?

a. Outer core

b. Crust

c. Mantle

-->  d. Inner core

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How many layers are between the Outer Core and the Earth's Crust

a. Two: Outer Core and Mantle

-->  b. One: Mantle

c. One: Crust

d. Zero

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How many parts of the earth's core are there?

a. 3

-->  b. 4

c. 5

d. 6

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What is the innermost part of the earth called?

-->  a. inner core

b. outer core

c. crust

d. mantle

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What is the layer between outer core and crust called?

a. Crust

b. Inner core

-->  c. Mantle

d. Outer core

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Which layer is the thinnest layer?

a. Inner Core

b. Mantle

-->  c. Crust

d. Outer Core

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What is the thickest layer of the earth?

a. outer core

-->  b. mantle

c. inner core

d. crust

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How many parts of the earths core are there?

-->  a. 4

b. 3

c. 1

d. 2

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What is the innermost part of the earth called?

a. outer core

b. mantle

c. crust

-->  d. inner core

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This layer is made up of hot, solid rock.

a. Inner core

-->  b. Mantle

c. Crust

d. Outer core

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How many cores layers does the Earth have?

-->  a. 2

b. 4

c. 1

d. 3

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How many Earth layers are shown in this picture?

a. 6

b. 2

-->  c. 4

d. 3

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What is the layer between the crust and the outer core?

a. Crust

b. Inner Core

c. Ouer Core

-->  d. Mantle

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Which layer of the earth humanity can live?

a. inner core

b. mantle

c. outer core

-->  d. crust

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What is the most outer layer shown in this diagram?

-->  a. Atmosphere

b. mantle

c. core

d. crust

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What is the layer of the earth directly below the Crust called?

a. Inner Core

b. Lower Mantle

c. Atmosphere

-->  d. Upper Mantle

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Which layer of the earth is above the lower mantle but under the crust?

-->  a. Upper mantle

b. Inner core

c. Atmosphere

d. Outer core

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How many layers of the earth are shown in the picture?

-->  a. 6

b. 4

c. 7

d. 5

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How many parts of the earth's crust are there?

a. 4

-->  b. 6

c. 3

d. 2

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Which layer of Earth contains dense iron?

a. Crust

b. Atmosphere

c. Lower Mantle

-->  d. Inner core

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What is the outer layer of the Earth's surface?

-->  a. Crust

b. inner core

c. outer core

d. mantle

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How many layers of the earth are there?

a. 6

-->  b. 4

c. 3

d. 5

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What is the innermost part of the earth called?

a. outer core

b. crust

c. mantle

-->  d. inner core

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How many layers are displayed in the diagram?

-->  a. 5

b. 6

c. 4

d. 3

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What is next to the earth's crust?

a. inner core

b. outer core

-->  c. upper mantle

d. mantle

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How many layers are there between the inner core and crust?

a. 4

-->  b. 3

c. 2

d. 1

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Which layer of the world is right beneath of the crust?

a. inner core

b. outer core

-->  c. upper mantle

d. mantle

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In what color is the mantle layer depicted?

a. Red

b. Black

-->  c. Orange

d. Blue

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What layer is directly below the crust?

a. inner core

b. space

c. outer core

-->  d. mantle

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How many parts of the earth's core are there?

a. 3

-->  b. 4

c. 5

d. 6

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What is the center layer of the Earth called?

-->  a. Inner core

b. Crust

c. Mantle

d. Outer core

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Which layer of the earth gives it structures?

a. Outer core

b. Mantle

-->  c. Crust

d. Inner core

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What is the deepest point of the lower mantle?

-->  a. 2890 kilometers

b. 660 kilometers

c. 5150 kilometers

d. 6371 kilometers

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It is the location where a convection cell is created.

a. core

b. bedrock

-->  c. mantle

d. crust

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If you were to travel one mile (5,280 ft.) into the earth, in which layer would you find yourself?

a. The center

-->  b. The inner core

c. The outer core

d. The lower mantle

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What is the lower mantle comprised of?

a. Iron Gas

b. Iron Liquid

c. Iron Solid

-->  d. Rock

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How many layers consist of rocks?

a. 2

-->  b. 3

c. 4

d. 1

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How many sections define the major layers of the earth?

a. 1

b. 4

c. 5

-->  d. 3

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Which part of the earth is made up of tectonic plates which are in constant motion?

a. Upper Mantle

b. Lower Mantle

c. Inner Core

-->  d. Crust

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In what color is depicted the inner core layer?

-->  a. Yellow

b. Black

c. Green

d. Orange

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What goes beyond the crust?

a. inner core

-->  b. mantle

c. outer core

d. it's the lowest part of the Earth

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Which layer is the closest to Earth's nucleus?

a. Crust

-->  b. Inner Core

c. Mantle

d. Outer Core

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How many layers are there between the crust and inner core?

a. 4

-->  b. 2

c. 1

d. 3

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How many layers of the earth's structure are depicted?

a. 2

b. 3

c. 1

-->  d. 4

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What is the innermost part of the earth called?

a. outer core

b. mantle

-->  c. inner core

d. crust

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What is the maximum depth of the mantle?

-->  a. 2891 km

b. 5150 km

c. 40 km

d. 6370km

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How many layers does the earth have?

-->  a. 4

b. 1

c. 3

d. 5

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Which layer of the Earth is made up of hot, solid rock?

-->  a. Mantle

b. Inner core

c. Outer core

d. Crust

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What surrounds the solid iron inner core?

a. crust

b. earth

-->  c. liquid iron outer core

d. mantle

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How many layers is the Earth's core divided into?

a. 1

b. 4

c. 3

-->  d. 2

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How many layers of the earth are shown here?

a. three

b. one

-->  c. four

d. two

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How deep is the mantle from the ground?

-->  a. 40-2891 km

b. 0-40 km

c. 5150-6370 km

d. 2891-5150 km

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Which is the outer layer of the Earth?

-->  a. Crust

b. Mantle

c. Inner core

d. Outer core

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How far from the surface is the inner core?

a. Fifty kilometers

b. Five thousand one hundred kilometers

-->  c. 6370 km

d. Five kilometers

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What's the distance between the Mantle and its next closest layer?

-->  a. 2200km

b. 2850km

c. 5100km

d. 2100km

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Which layer of the earth is located 6000 km below the surface?

a. Crust

b. Mantle

-->  c. Inner core

d. Outer core

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How far is the inner core from the earth's surface?

a. 50 km

-->  b. 6370km

c. 5100km

d. 2900km

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How many layers are there between the inner core and crust?

a. 3

b. 4

-->  c. 2

d. 1

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What layer is the hardest and hottest layer?

a. crust

b. mantle

c. outer core

-->  d. inner core

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Which one of earth's layers is labeled as B?

-->  a. Mantle

b. Crust

c. Outer core

d. Inner core

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Which part is the core of the earth?

-->  a. D

b. B

c. C

d. A

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Which component surrounds the mantle?

a. B

b. D

c. C

-->  d. A

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How many layers does the earth have?

-->  a. 4

b. 1

c. 2

d. 3

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How many layers of the earth consist of extremely hot rock and metal?

a. 4

b. 2

c. 1

-->  d. 3

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Which letter refers to the outermost part of the earth?

a. D

-->  b. A

c. C

d. B

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Which is the layer closest to the inner core?

a. Atmosphere

b. Crust

c. Mantle

-->  d. Outer Core{

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Which layer is the closest to the atmosphere?

-->  a. Crust

b. Mantle

c. Outer Core

d. Inner Core

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How many Earth layers are shown in this picture?

a. 5

b. 2

-->  c. 4

d. 3

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How many layers does the Earth have?

-->  a. 4

b. 3

c. 5

d. 2

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Which of the earths layers is the thickest?

a. outer core

b. Crust

c. inner core

-->  d. Mantle

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What is the second inner layer of the planet called?

a. Inner Core

b. Crust

-->  c. Outer Core

d. Mantle

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What is the layer of the earth that is in between Earth's crust and outer core?

a. Inner core

-->  b. Mantle

c. Crust

d. Outer Core

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How many layers of the earth are shown in the picture?

a. 3

b. 5

c. 2

-->  d. 4

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How many layers of the earth are there?

a. 3

b. 6

-->  c. 4

d. 5

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What layer of the earth should be red?

-->  a. Innner core

b. Outer Core

c. Mantle

d. Crust

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Which part of the earth creates the magnetic field?

-->  a. Outer core

b. Mantle

c. Crust

d. Inner core

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Where do plants grow?

-->  a. Crust

b. Mantle

c. Core

d. Clouds

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What layer of the earth is located above the inner core?

a. Mantle

b. Crust

c. Middle core

-->  d. Outer core

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What layer produces the most heat?

a. Outer core

b. Mantle

c. Crust

-->  d. Inner core

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How many layers are there in the earth's core?

a. 4

b. 3

-->  c. 2

d. 1

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How many layers does the earth have?

a. 2

b. 3

-->  c. 4

d. 1

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What is the innermost part of the earth called?

-->  a. inner core

b. outer core

c. mantle

d. crust

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What is the outermost layer of the Earth?

a. Mantle

b. Lithosphere

-->  c. Crust

d. Asthenosphere

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Which one of the layers is the nearest to the Earth's Nucleus?

-->  a. Inner Core

b. Crust

c. Mantle

d. Outer Core

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From the 'not to scale' diagram, how many layers are there in the mantle?

-->  a. 4

b. 2

c. 5

d. 3

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How many liquid parts there are?

a. 3

-->  b. 1

c. 2

d. 5

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How thick is the outer core?

a. 6378 km

b. 5100 km

c. 2900 km

-->  d. 2200 km

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Which layer is directly beneath the crust?

-->  a. mantle

b. inner core

c. trench

d. outer core

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Which layer of the earth's ground is labeled as 6?

a. Inner core

b. Mantle

-->  c. Crust

d. Outer core

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Which number represents the earth's inner core?

-->  a. 1

b. 2

c. 5

d. 6

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Which number refers to the inner core?

a. 2

b. 4

c. 3

-->  d. 1

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Which number refers to the outermost part of the earth?

-->  a. 6

b. 3

c. 2

d. 4

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What lies above the outer core?

a. mesosphere

b. mantle

-->  c. asthenosphere

d. lithosphere

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What do you call the Earth's layer that is in between the mesosphere and the outer core?

a. crust

b. lithosphere

-->  c. asthenosphere

d. inner core

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Which of the earth's layers is liquid?

a. asthenosphere

-->  b. outer core

c. mantle

d. crust

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How many Earth layers are shown in this picture?

-->  a. 8

b. 5

c. 2

d. 7

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What is the radius of the earth?

a. lithosphere's lenght

b. 2900 km

c. 5100 km

-->  d. 6378 km

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Which part of the diagram represents a liquid layer of the Earth?

a. Lower Mantle

-->  b. Outer Core

c. Crust

d. Inner Core

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What mantle covers the outer core?

-->  a. Lower mantle

b. Upper mantle

c. Inner core

d. Crust

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Which layer is the closest to the nucleus of the earth?

a. Mantle

b. Outer Core

c. Crust

-->  d. Inner Core

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How many layers of the earth are shown in the picture?

a. 4

-->  b. 5

c. 7

d. 3

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In this diagram of inside earth, what is the Outer Core made out of?

a. Gas

b. Crust

c. Solid

-->  d. Liquid

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What lies between the core and crust?

a. deep core

-->  b. mantle

c. outer core

d. molten

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The crust lies on top of what part of the earth?

a. continent

b. core

-->  c. mantle

d. ocean

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Which layer is the farthest from the Earth's surface?

a. Crust

b. All are the same distance

-->  c. Core

d. Mantle

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How many layers does the earth have in this diagram?

a. 4

-->  b. 3

c. 1

d. 2

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How many major layers does the earth have?

a. 4

b. 1

-->  c. 3

d. 2

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In this diagram of the Earth's layers, what is the middle layer called?

-->  a. Mantle

b. Outer Core

c. Crust

d. Inner Core

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Which layer is the closest to the atmosphere?

a. Inner Core

b. Out Core

-->  c. Earth Crust

d. Mantle

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How many layers of the earth are there?

-->  a. 3

b. 5

c. 6

d. 4

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How many middle layers are in the diagram?

a. 3

-->  b. 1

c. 2

d. 4

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The center of the Earth is called?

-->  a. The core

b. The mantle

c. The ocean

d. The crust

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Which part of the earth is made up of semi-molten rock called magma?

a. Earth's Crust

b. Earth's Core

c. Earth's Soil

-->  d. Earth's mantle

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What is the inner-most layer of the Earth called?

a. Crust

-->  b. Core

c. Inner mantle

d. Outer mantle

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How many mantles are inside the Earth?

a. 3

b. 1

-->  c. 2

d. 4

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What is the hottest layer of the earth?

a. Earths Crust

-->  b. Inner Core

c. Upper Mantle

d. Lower Mantle

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What is the approximate radius of the Earth?

a. 5328 km

-->  b. 6371 km

c. 6505 km

d. 5002 km

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What layer lies between the mantle and inner core?

a. Continental crust

b. Mantle

-->  c. Outer core

d. Oceanic crust

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Which layer is directly connected to the Inner Core?

-->  a. Outer Core

b. Continental Crust

c. Oceanic Crust

d. Mantle

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How many types of crust are on Earth?

a. 1

b. 4

-->  c. 2

d. 3

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What is the very center of the Earth called?

a. continental crust

b. mantle

c. outer core

-->  d. inner core

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Which layer is closest to the Earth's surface?

-->  a. Oceanic crust

b. Outer core

c. Mantle

d. Asthenosphere

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What do you call the layer that is in between the mantle and the inner core?

a. asthensphere

b. continental crust

-->  c. outer core

d. lithosphere

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What is below the lithosphere?

-->  a. asthenosphere

b. continental crust

c. outer core

d. inner core

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How many cores are inside the earth?

a. 3

b. 1

c. 4

-->  d. 2

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In this diagram of the Earth's Interior, what is just beneath the Continental Crust?

a. Mantle

b. Asthenosphere

-->  c. Oceanic Crust

d. Lithosphere

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Which layer is thinner under the oceans and much thicker in mountain ranges?

a. Outer core

b. Inner core

c. Mantle

-->  d. Crust

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The second layer of earth after the inner core is?

a. Mantle

-->  b. Outer core

c. Crust

d. Inner core

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What layer of the Earth is in between the mantle and the inner core?

a. Crust

-->  b. Outer Core

c. Mantle

d. Inner Core

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How many layers of the earth are shown in the picture?

-->  a. 4

b. 2

c. 1

d. 3

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Which is the innermost part of the Earth?

-->  a. Inner Core

b. Crust

c. Mantle

d. Outer core

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What is the most outer layer shown in this diagram?

a. inner core

b. outer core

-->  c. crust

d. mantle

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What lies between the outer core and crust?

-->  a. mantle

b. inner core

c. earth

d. water

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How many layers does the Earth have?

-->  a. 4

b. 1

c. 3

d. 2

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How many layers of the earth are shown in this diagram?

-->  a. 4

b. 1

c. 6

d. 7

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What is the innermost part of the Earth?

-->  a. Inner core

b. Crust

c. Mantle

d. Outer core

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Which layer lies between the crust and the outer core?

a. Crust

b. Inner core

-->  c. Mantle

d. Outer core

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How many layers are there beneath the earth's crust?

-->  a. 3

b. 2

c. 1

d. 4

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In this diagram about inside earth, what is the outer layer called?

a. Inner Core

b. Outer Core

-->  c. Crust

d. Mantle

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Which layer contains igneous rocks and is much less dense than the mantle?

a. inner core

-->  b. crust

c. outer core

d. lithosphere

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The space of 1300 km is occupied by which part of the earth?

a. crust

b. outer core

-->  c. inner core

d. mantle

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What layer of the earth is located 3000 km below the crust?

a. Surface

b. Inner core

-->  c. Outer core

d. Mantle

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Which layer lies between the mantle and the inner core?

-->  a. Outer core

b. Inner core

c. Crust

d. Mantle

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How many layers does the earth have in this diagram?

a. 1

-->  b. 4

c. 3

d. 2

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What is the distance from the surface of the earth's crust to the center of the core?

-->  a. 6450km

b. 2250km

c. 1300km

d. 2900km

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What is the innermost part of the earth called?

-->  a. inner core

b. crust

c. outer core

d. mantle

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What is the outermost layer of the earth called?

a. Mantle

b. Inner core

c. Outer core

-->  d. Crust

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What do we call the liquid layer of earth?

a. Mantle

b. Inner Core

-->  c. Outer Core

d. Crust

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What layer is at the center of earth?

a. outer core

b. Crust

-->  c. Inner core

d. Mantle

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What is in between the solid inner core and the mantle?

a. Crust

b. Liquid Inner Core

c. Solid Outer Core

-->  d. Liquid outer core

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What lies below the crust?

-->  a. mantle

b. outer core

c. inner core

d. molten

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How many Earth layers are there?

a. 5

b. 3

-->  c. 4

d. 2

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How many layers of the earth are there?

a. 1

b. 2

-->  c. 4

d. 3

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In this diagram of inside earth, what is just beneath the crust?

a. outer crust

b. liquid outer core

c. solid inner core

-->  d. mantle

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Which compositional layer can be found 6,936 km below the Earth's surface?

a. outer core

b. mantle

c. inner core

-->  d. core

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Which compositional layer surrounds the core?

-->  a. mantle

b. mesosphere

c. oceanic crust

d. oceanic crust

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What is the innermost part of the earth called when looking at mechanical layers?

a. lithosphere

b. mesosphere

c. outer core

-->  d. inner core

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What is the state of matter of the inner core?

a. Gas

b. Plasma

-->  c. Solid

d. Liquid

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Which layer is the closest to the atmosphere?

a. Mantle

-->  b. Crust

c. Inner Core

d. Outer Core

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What is right underneath the atmosphere?

a. mantle

b. outer core of molten metal

-->  c. Crust

d. solid metal inner core

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What lies between the crust and the outer core?

-->  a. Mantle

b. Inner core

c. Molten metal

d. Atmosphere

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Identify which of the following layers is around the Inner Core.

a. Outer Mantle

b. Crust

-->  c. Outer Core.

d. Mantle

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How many Earth layers are shown in the diagram?

a. 6

b. 2

-->  c. 4

d. 5

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How many layers of the earth are shown in the picture?

a. 1

b. 2

-->  c. 4

d. 3

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Which layer of the earth is liquid?

a. Crust

-->  b. Outer core

c. Inner core

d. Mantle

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What is present exactly above the focus?

a. seismic waves

b. fault trace

c. fault scrap

-->  d. epicenter

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What is the part of Earth called when the land separates?

a. Fault plane

b. Focus

-->  c. Fault scarp

d. Seismic waves

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What is the center of origin of seismic waves called?

a. Focus

-->  b. Epicenter

c. Fault Scarp

d. Fault Trace

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Where is the point where the rock ruptures?

a. Fault plane

b. Fault trace

c. Fault scarp

-->  d. Focus

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This diagram illustrates what?

a. waves

-->  b. a fault plane

c. epicenter

d. scarp

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How many labels are on this image?

a. 4

b. 2

c. 8

-->  d. 6

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What is the projection of the earthquake focus on the surface called?

a. seismic waves

b. fault trace

c. fault scarp

-->  d. epicenter

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Where do the seismic waves move outward from?

a. Fault

-->  b. Focus

c. Epicentre

d. Subduction zone

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How many epicenters does an earthquake have?

a. 4

b. 3

c. 2

-->  d. 1

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How many Focus points is shown in the diagram?

a. 2

b. 4

c. 3

-->  d. 1

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What is the point on the Earth's surface that is directly above the hypocenter or focus?

a. Focus

b. Fault

-->  c. Epicenter

d. Seismic Waves

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What is directly above the hypocenter?

-->  a. Epicenter

b. Seismic

c. Focal

d. Faults

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What is the point on the Earth's surface that is directly above the hypocenter or focus?

-->  a. Epicenter

b. Hypocenter

c. Faults

d. Seismic

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What is the projection of the earthquake hypocenter on the surface called?

a. crust

b. focus

c. seismic waves

-->  d. epicenter

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What causes an earthquake?

a. Hurricanes

b. Movement of continents

c. Rain

-->  d. The movement of plate boundaries

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What is the middle of Earth called?

a. outer core

b. earthquake

-->  c. solid inner core

d. p-wave shadow zone

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How many sections of the earth shown?

a. 4

b. 2

-->  c. 3

d. 1

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What is a layer between the crust and the outer core?

a. Inner Core

b. Crust

c. Shadow Zone

-->  d. Mantle

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Which waves move through the core of the earth?

a. L waves

b. Surface waves

-->  c. P waves

d. S waves

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There are the first waves to reach a seismometer.

a. L waves

b. C waves

c. S waves

-->  d. P waves

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What is inside the liquid outer core?

-->  a. core

b. surface waves

c. p waves

d. surface

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How many solid cores does the earth have?

a. 3

b. 4

c. 5

-->  d. 1

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How many waves are depicted in the image?

a. 2

b. 1

c. 4

-->  d. 3

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What does the straight red line represent?

a. L Waves

-->  b. P Waves

c. Core

d. S Waves

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From the diagram, what refers to the energy from earthquakes?

-->  a. seismic waves

b. focus

c. epicentre

d. plate movement

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What is the point on the Earth's surface that is directly above the hypocenter or focus?

a. Focus

-->  b. Epicenter

c. Seismic Waves

d. Plate Movement

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What type of plate boundary causes this type of earthquake?

a. Divergent Plate Boundaries

b. Convergent Plate Boundaries

-->  c. Transform Plate Boundaries

d. Continent/Continent collisions

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How many plates are moving in the diagram of an earthquake?

a. none

b. 3

-->  c. 2

d. 1

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What is the projection of the earthquake focus on the surface called?

-->  a. epicentre

b. hypocentre

c. plate movement

d. seismic waves

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Which point of the diagram shown below is the point where the rock ruptures?

-->  a. Focus

b. Seismic Center

c. Plate Center

d. Epicentre

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What is the inner small circle called?

a. epicentre

-->  b. core

c. mantle

d. waves

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How many types of seismic waves are present?

a. 4

-->  b. 3

c. 1

d. 2

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What kind of waves cross through the core?

a. L Waves

b. N Waves

-->  c. P waves

d. S Waves

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How many types of waves are in the diagram?

a. 2

b. 1

c. 4

-->  d. 3

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What type of seismic waves are the fastest and therefore will reach the farthest point from the epicenter first?

a. P and S waves

-->  b. P waves

c. S waves

d. L waves

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What is the innermost part of the earth called?

a. shadow zone

-->  b. inner core

c. mantle

d. outer core

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How many layers the earth has?

-->  a. 3

b. 5

c. 4

d. 2

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S waves stand for what?

a. Seismic waves

b. Signal waves

c. Sound waves

-->  d. Secondary waves

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P--wave patterns start from where?

a. Mantle

-->  b. Epi-centre

c. Core

d. Shadow zone

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What does the blue represent?

a. P-wave patterns

b. S-wave patterns

c. epi-centre

-->  d. core

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What kind of waves can pass through the Earth's core?

a. Rayleigh waves

b. Love waves

-->  c. P-waves

d. S-waves

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Which wave pattern cannot travel through the core?

a. Epicentre

-->  b. S-wave pattern

c. P-wave pattern

d. Shadow zone

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How many degrees is the S-wave shadow zone after an earthquake?

a. 90

b. 140

c. 150

-->  d. 103

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What is a layer between the crust and the outer core?

-->  a. Mantle

b. S-wave Patterns

c. P-wave Patterns

d. Epicenter

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Which layer of the earth is above the outer core but under the crust?

a. outer core

b. Inner core

c. Crust

-->  d. Mantle

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What protects the earth's crust from the core?

-->  a. MANTLE

b. K

c. AIR

d. ROCK

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What is located between the outer core and the earth's crust?

a. inner core

-->  b. mantle

c. crust

d. core

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Where can you find melted metal?

-->  a. outer core

b. Mantle

c. inner core

d. crust

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Identify the mantle

a. M

-->  b. T

c. X

d. R

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What is the outer part of the earth?

a. core

b. mantle

c. Inner Layer

-->  d. crust

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What is the outer most part of earth?

a. mantle

b. inner core

-->  c. crust

d. core

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Identify the crust

a. U

b. Y

-->  c. J

d. L