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Unit 3 Part 1 Study Guide: Earth Layers and Plate Tectonics

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

Which layer of the Earth is least dense?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

2.

Which layer of the Earth is most dense?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

3.

Which layer of the Earth is thickest?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

4.

Which layer of the Earth is thinnest?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

5.

Where is the lithosphere located?

a)

Crust and Upper Mantle

b)

Mantle

c)

Crust

d)

Core

6.

Where is the asthenosphere located?

a)

Crust and Upper Mantle

b)

Mantle

c)

Crust

d)

Core

7.

Which layer is the crust?

a)

1

b)

2

c)

3

d)

4

8.

Which layer is the outer core?

a)

1

b)

2

c)

3

d)

4

9.

Where does magma come from?

a)

Outer Core

b)

Inner Core

c)

Mantle

d)

Ocean

10.

What is happening at this boundary to create a volcano?

a)

Plates are sliding beside each other

b)

Both plates are lifting and folding

c)

One plate is going under the other and melting

d)

The plates are moving apart and making new crust

11.

What do we call this type of boundary?

a)

Divergent

b)

Convergent Collision

c)

Convergent Subduction

d)

Transform

12.

What landform is created when two continental plates collide?

a)

Mountain

b)

Trench

c)

Mid-Ocean Ridge

d)

Rift Valley

13.

What landform is created when two oceanic plates collide?

a)

Mountain

b)

Trench

c)

Mid-Ocean Ridge

d)

Rift Valley

14.

What landform is created when two oceanic plates separate?

a)

Mountain

b)

Trench

c)

Mid-Ocean Ridge

d)

Rift Valley

15.

What landform is created when two continental plates separate?

a)

Mountain

b)

Trench

c)

Mid-Ocean Ridge

d)

Rift Valley

16.

How does the mantle help move Earth's tectonic plates?

a)

It causes earthquakes to push them

b)

It's made entirely of liquid rock, which makes them float

c)

It contains metals which create Earth's magnetic field

d)

Temperature differences create convection currents

17.

What does the theory of continental drift state?

a)

All the continents were once together, but drifted apart

b)

All the continents were once separated, but are drifting together

c)

The position of the continents has never changed

d)

New continents are always being created and destroyed

18.

Which major geologic events tend to occur in the Ring of Fire? (PICK 2)

a)

Volcanoes

b)

Earthquakes

c)

Hurricanes

d)

Tornadoes

19.

Why do major geologic events tend to occur in the Ring of Fire?

a)

Tidal activity

b)

Tectonic plate boundaries

c)

Ocean currents

d)

Weathering and erosion

20.

What is happening at point W?

a)

Magma is heated by core, rises towards crust, then cools and sinks

b)

Magma is heated by crust, sinks towards core, then cools and rises

c)

Crust is heated by sun, warms magma, then sinks toward the core

d)

Crust is heated by sun, pulling the plates and causing friction, which then heats the magma

21.

What is happening at point X?

a)

Plates are separating, creating new crust

b)

Plates are separating, destroying old crust

c)

Plates are colliding, creating new crust

d)

Plates are colliding, destroying old crust

22.

What is happening at point Y?

a)

Plates are separating, creating new crust

b)

Plates are separating, destroying old crust

c)

Plates are colliding, creating new crust

d)

Plates are colliding, destroying old crust

23.

Which natural disaster is MOST LIKELY to occur when tectonic plates slide past each other?

a)

Volano

b)

Earthquake

c)

Sinkhole

d)

Mudslide

24.

Which of these proves that Earth has changed over time?

a)

Fossilized cactus in desert

b)

Fossilized polar bear at North Pole

c)

Fossilized fish on top of mountains

d)

Fossilized leaves in rain forest

25.

Similar _____ on different continents would best support the theory of plate tectonics and continental drift.

a)

Fossils

b)

Cultures

c)

Languages

d)

Weather

26.

Scientists digging near a river find many fossils of fish in top layers, but as they dig deeper there are no fossils of fish. What is the MOST LIKELY explanation?

a)

Animals used to eat all the fish

b)

Fish used to not live in rivers

c)

The river wasn't always there

d)

The river used to be connected to the ocean

27.

If fish fossils are found on top of a mountain, what does that mean?

a)

Fish are able to live without water

b)

Oceans can flow up mountains

c)

That land was once underwater before becoming a mountain

d)

Fish evolved into goats

28.

According to these fossil layers, how did this landscape change?

a)

Changed from cold to warm

b)

Changed from warm to cold

c)

Changed from water to land

d)

Changed from land to water

29.

According to these fossil layers, which organisms lived here first?

a)

Cats

b)

Insects and seals

c)

Trilobites and clams

d)

Nautilus and coral

30.

How can you explain finding a fossil of a moose (cold climate animal) in a tropical region?

a)

All animals used to be able to survive in warm climates

b)

Fossils were washed there my water currents

c)

Moose migrated around the globe

d)

The area used to have a colder climate

31.

How can you explain finding a fossil of a tropical (warm) plant in an arctic (cold) region?

a)

The climate changed from warm to cold as the land drifted away from the equator

b)

Plants can live in ice

c)

Wind eroded the land and deposited the fossil further north

d)

A river moved the fossil over the course of several years

32.

Which letter shows the abyssal plain?

a)

K

b)

D

c)

E

d)

L

33.

Which letter shows a seamount?

a)

K

b)

D

c)

E

d)

L

34.

What landform is shown at letter D?

a)

Continental slope

b)

Mid-ocean ridge

c)

Ocean trench

d)

Seamount

35.

What landform is shown at letter G?

a)

Continental slope

b)

Mid-ocean ridge

c)

Trench

d)

Seamount

36.

What is true about mid-ocean ridges, rift valleys, and trenches?

a)

The have different names in Southern Hemisphere

b)

They're in the middle of tectonic plates

c)

They mark the boundaries of tectonic plates

d)

They are all made by volcanoes

37.

How is new crust made?

a)

One plate breaks into two

b)

One plate grinds against another

c)

Two plates separate and move away

d)

Two plates collide and come together

38.

Which number was most likely created by a volcano?

a)

1

b)

3

c)

5

d)

7

39.

Which type of boundary most likely created the Himalaya Mountains?

a)

Divergent

b)

Convergent Collisional

c)

Convergent Subduction

d)

Transform

40.

Which letter represents the asthenosphere?

a)

C

b)

D

c)

E

d)

F

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