Free Printable The Earth's Interior (Second Summative Test)

1.

An S-wave shadow zone is formed as seismic waves travel through the Earth’s body. Which of the following statements does this S-wave shadow zone indicate?

a)

The inner core is liquid

b)

The inner core is solid

c)

The mantle is solid

d)

The outer core is liquid

2.

Why are there no P-waves or S-waves received in the P-wave shadow zone?

a)

P-waves are absorbed and S-waves are refracted by Earth’s outer core

b)

P-waves are refracted and S-waves are absorbed by Earth’s outer core

c)

Both the P-waves and S-waves are refracted by Earth’s outer core

d)

Both the P-waves and S-waves are absorbed by Earths outer core

3.

The theory of plate tectonics combine which two other theories?

a)

sea floor spreading and continental drift

b)

sea floor spreading and tidal theory

c)

continental drift and fossil theory

d)

continental drift and Big Bang theory

4.

Miners dig into the Earth in search for precious rocks and minerals. In which layer is the deepest explorations made by miners?

a)

crust

b)

inner core

c)

mantle

d)

outer core

5.

How do you compare the densities of the Earth’s crust, mantle and core?

a)

The mantle is less dense than the core but denser than the crust

b)

The mantle is less dense than both the core and the crust

c)

The mantle is denser than the core but less dense than the crust

d)

The mantle is denser than both the core and the crust

6.

The movement of the lithospheric plates is facilitated by a soft, weak and plastic-like layer called__________

a)

asthenosphere

b)

mantle

c)

mesosphere

d)

liquid outer core

7.

Alfred Wegener is a German scientist who hypothesized that the Earth was once made up of a single large landmass. Which of the following theories did Wegener propose?

a)

Continental Drift Theory

b)

Sea-floor Spreading Theory

c)

Plate Tectonic Theory

d)

Magnetic Reversal Theory

8.

Which observation was NOT instrumental in formulating the hypothesis of seafloor spreading?

a)

Depth of the ocean

b)

Identifying the location of glacial deposits

c)

Magnetization of the oceanic crust

d)

Thickness of seafloor sediments

9.

As a new seafloor is formed at the mid-ocean ridge, the old seafloor farthest from the ridge is destroyed. Which of the stated processes describes how the oceanic crust plunges into the Earth and destroyed at the mantle?

a)

convection

b)

construction

c)

diversion

d)

subduction

10.

The evidence that rocks closer to mid ocean ridges are younger than rocks farther away supports the theory of:

a)

sea floor spreading

b)

subduction

c)

plate tectonics

d)

Big Bang theory

11.

Why is Earth not growing in spite of sea floor spreading?

a)

because of subduction in the Atlantic Ocean.

b)

because of subduction in the Indian Ocean.

c)

because of subduction the Pacific Ocean.

d)

because of subduction in the Gulf of Mexico.

12.

The boundary between the Earth’s crust and mantle where the speed of seismic waves changes is called the

a)

Moho

b)

Shadow zone

c)

Magnetosphere

d)

Hydrosphere

13.

Geologists believe the source of the Earth’s magnetic field may be the

a)

Core

b)

Crust

c)

Magnetosphere

d)

Magnetic pole

14.

What are the shock waves produced by an earthquake?

a)

Seismic waves

b)

tidal waves and tsunami

c)

electromagnetic waves

d)

gravitational waves

15.

The layer that makes up most of the Earth’s mass and volume is the

a)

Mantle

b)

Inner core

c)

Crust

d)

Outer core

16.

What layer is a solid because of the pressure of overlying rocks?

a)

Crust

b)

asthenosphere

c)

Outer core

d)

Inner core

17.

What layer has properties of both a solid and a liquid?

a)

Mantle

b)

Outer core

c)

Inner core

d)

Crust

18.

What is the Earth’s internal heat source?

a)

Mantle

b)

Crust

c)

Core

d)

Asthenosphere

19.

A boundary between the mantle and the core.

a)

Mohorovicic discontinuity

b)

Gutenberg discontinuity

c)

Divergent boundary

d)

Lehmann boundary

20.

It states that continents have changed positions over time

a)

Continental Drift Theory

b)

Seafloor Spreading Theory

c)

Plate Tectonics Theory

d)

Hot Spots Theory

21.

An ancient plant

a)

Glaciers

b)

Coal beds

c)

Glossopteris

d)

Fossils

22.

The remains, imprints, or traces of plants or animals preserves from an earlier period of time.

a)

Coal beds

b)

Antiques

c)

mummies

d)

fossils

23.

He proposed the theory of continental drift

a)

Alfred Wegener

b)

Francis Bacon

c)

Frank Taylor

d)

Antonio Snider

24.

The ability of solid to flow

a)

Liquid motion

b)

Fluid motion

c)

plasticity

d)

liquid behavior

25.

Plate tectonics refers to the fact that the surface of Earth is broken into several large plates which ride along on what resembles a giant conveyer belt of rock. Using this analogy, what would be the beginning of the conveyer belt?

a)

Earthquakes

b)

Ocean ridges

c)

Tectonic plate edges

d)

Hot spots

26.

The existence of coal beds in Antarctica indicates that the continent once had __________.

a)

been part of Africa

b)

a temperate, rainy climate

c)

a cold, dry climate

d)

been farther from the equator

27.

Which of the following is NOT one of the fossils found that supported theory of Continental drift?

a)

Megaladon

b)

Mesosaurus

c)

Lystrosaurus

d)

Cynognathus

28.

Theory that the lithosphere is broken down into large separate sections called plates, each moving at a certain speed. It explains why earthquakes, volcanoes, and mountains form.

a)

Continental Drift Theory

b)

Seafloor Spreading Theory

c)

Plate Boundary Theory

d)

Plate Tectonic Theory

29.

Which of the following findings that support Seafloor Spreading Theory?

a)

Rocks are younger at the mid-ocean ridge.

b)

Rocks far from the mid-ocean ridge are older.

c)

Sediments are thinner at the ridge.

d)

All of the above

30.

Subduction zone can be found at _______

a)

Convergent boundary

b)

Divergent boundary

c)

Transform fault boundary

d)

Mantle plume

31.

Tectonic plate movements are caused by _______

a)

Conveyor belts

b)

Heat in inner core

c)

convection currents

d)

lithospheric sources

32.

This is due to the change in the direction of flow in the outer core.

a)

Magnetic reversal

b)

Convection current

c)

seafloor spreading

d)

continental drifting

33.

Process by which new ocean floor is formed near the mid-ocean ridge and moves outward

a)

Seafloor spreading

b)

Drifting of continents

c)

tectonic plates motion

d)

volcanic arc

34.

A convection current is caused by differences in ________

a)

Pressure

b)

Temperature

c)

mass

d)

materials

35.

New rock is created at ocean ridges, pushing the older ocean floor away from the ridge. What causes the new rock to form?

a)

Movement of the ocean crust over hot spots

b)

Volcanic eruptions

c)

Earthquakes in the ocean crust

d)

Convection currents in the magma below the ocean floor

36.

Area in the middle of the ocean where a new ocean floor is formed when lava erupts through the cracks in the Earth’s crust.

a)

Mid-ocean ridge

b)

Hot spots

c)

under water volcanoes

d)

magma plume

37.

Secondary waves cannot travel through _______

a)

solids

b)

Solid and liquids

c)

gases and solids

d)

gases and liquids

38.

The idea that the seafloor itself moves (and carries the continents with it) as it expands from a central axis was proposed by _______

a)

Harry Hess

b)

Alfred Wegener

c)

Francis Bacon

d)

Beno Gutenberg

39.

Which part of the plate tectonic theory explains what actually makes the plates move?

a)

Paleomagnetism

b)

Volcanoes

c)

Sea floor spreading

d)

Earthquakes

40.

Areas where continental and oceanic plates converge are also said to be

a)

Subduction zone

b)

Australian zone

c)

Mid-pacific zone

d)

Mid-atlantic zone

41.

Where does seafloor spreading begin?

a)

At the mid-ocean ridge

b)

At the trench

c)

at the Atlantic Ocean

d)

at the subduction zone

42.

It happens when the North Pole is transformed into a South Pole and the South Pole becomes the North Pole.

a)

Dipole moment

b)

Magnetic reversal

c)

global positioning

d)

geomagnetic replacement

43.

They arrive after the main P and S waves

a)

surface waves

b)

Love waves

c)

Rayleigh waves

d)

compressional waves

44.

Why is the Atlantic expanding?

a)

Because it has fewer subduction zones

b)

Because of many ocean ridges

c)

Because of many hot spots

d)

Because of many rift valleys

45.

What is the name given to an area where plates meet?

a)

Rendezvous

b)

Crossing

c)

plate boundary

d)

subduction zone

46.

Most of the shaking felt from an earthquake is due to these waves

a)

Rayleigh waves

b)

P waves

c)

Love waves

d)

S waves

47.

It causes the most damage to structures during an earthquake

a)

Rayleigh wave

b)

primary wave

c)

Love wave

d)

secondary wave

48.

The fastest waves

a)

primary waves

b)

secondary waves

c)

body waves

d)

surface waves

49.

It rolls along the ground just like a wave rolls across an ocean

a)

Love wave

b)

Rayleigh wave

c)

primary wave

d)

secondary wave

50.

He suggested that Pangaea were divided into Laurasia and Gondwanaland.

a)

Antonio Snider

b)

Alfred Wegener

c)

Alexander L. Du Toit

d)

Alexander von Humboldt

The Earth's Interior (Second Summative Test)

Total questions: 50

Worksheet time: 35mins

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