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Layers Inside Earth Unit 3

Total questions: 27

Worksheet time: 17mins

Name
Class
Date
1.

Which of the following IS NOT a way that fossils help us.

a)

Fossils can help us understand what past climates where like.

b)

Fossils are just cool but don't really help us.

c)

Fossils can show us how Earth's surface has changed.

d)

Fossils can help us understand what animals lived long ago.

2.

The Wasatch Mountains of Utah are many hundreds of miles from the ocean. Yet, hikers there often find rocks that contain fossils of ocean animals. Based on this evidence, what inference can you make about the history of the Wasatch Mountains?

a)

The land that makes up the mountains was the ocean floor once.

b)

A bird carried the seashells to the mountains.

c)

The fossils don't really tell us anything about the mountains.

d)

A hiker dropped the fossil of an ocean animals there.

3.

If you find the fossil of a palm tree in Alaska, what can you conclude about the past climate of Alaska?

a)

The climate of Alaska was warmer once.

b)

The climate of Alaska was drier once.

c)

The climate of Alaska was colder once.

d)

The climate of Alaska was the same as now.

4.

Which is the correct labeling of Earth's layers?

a)

A - outer core, B - mantle, C - inner core, D - crust

b)

A - mantle, B - outer core, C - crust, D - inner core

c)

A - crust, B - mantle, C - outer core, D - inner core

d)

A - crust, B - mantle, C - inner core, D - outer core

5.

Which of Earth's layers do we know the most about?

a)

inner core

b)

mantle

c)

crust

d)

outer core

6.

Put the layers in order according to pressure, temperature, and density. Number 1 has the highest pressure, temperatures and density and number 4 has the lowest pressure, temperature and density.

a)

inner core, outer core, mantle, crust

b)

crust, mantle, outer core, inner core

c)

mantle, crust, outer core, inner core

d)

outer core, inner core, mantle, crust

7.

Which layer is composed of liquid iron and nickel?

a)

crust

b)

mantle

c)

outer core

d)

inner core

8.

Which layers is composed of basalt and granite?

a)

crust

b)

mantle

c)

outer core

d)

inner core

9.

Which layers has plastic like rock?

a)

crust

b)

mantle

c)

outer core

d)

inner core

10.

Which layer is composed of solid iron and nickel?

a)

crust

b)

mantle

c)

outer core

d)

inner core

11.

Who came up with the hypothesis of Continental Drift?

a)

Harry Hess

b)

Albert Einstein

c)

Mrs. Alexander

d)

Alfred Wegener

12.

All of the following are pieces of evidence that support Continental Drift EXCEPT...

a)

fossils of warm climate plants in cold climates

b)

Coal and rock formations in Mountains

c)

animals that are present on continents today

d)

puzzle like fit of continents

13.

How did the theory of Seafloor Spreading help the theory of Continental Drift?

a)

Seafloor Spreading helped explain how the world was shrinking.

b)

Seafloor Spreading explained why the world was expanding.

c)

Seafloor Spreading did not help explain anything.

d)

Seafloor Spreading helped explain how the continents moved.

14.

What process happens at mid-ocean ridges?

a)

Old seafloor is created.

b)

New seafloor is created.

c)

Old seafloor is destroyed.

d)

New seafloor is destroyed.

15.

What process happens at trenches?

a)

New seafloor subducts and recycles into the mantle.

b)

Old seafloor stays in the same place.

c)

Old seafloor subducts and recycles into the mantle.

d)

The Earth's circumference becomes larger.

16.

Decide if this is subduction or seafloor spreading. Destroying ocean crust

(a)  

17.

Decide if this is seafloor spreading or subduction

Happens in rifts at mid-ocean ridges

(a)  

18.

Decide if this is seafloor spreading or subduction -

ocean crust sinks

(a)  

19.

Decide if this is seafloor spreading or subduction -

New ocean crust is made

(a)  

20.

Decide if this is seafloor spreading or subduction -

magma rises at a rift

(a)  

21.

Decide if this is seafloor spreading or subduction -

forms a trench

(a)  

22.

The deeper you go into the ocean, the more pressure there is.

a)

true

b)

false

23.

Sonar has been used to map the ocean floor

a)

true

b)

false

24.

The ocean floor is flat.

a)

true

b)

false

25.

The abyssal plain is the part you are on at the beach.

a)

true

b)

false

26.

An ocean’s deepest point is the middle.

a)

true

b)

false

27.

We have explored only about 5 % of the ocean floor.

a)

true

b)

false