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Layers of the Earth 2020.21

Total questions: 50

Worksheet time: 29mins

Name
Class
Date
1.

Which layer is made (mostly) of LIQUID iron and nickel?

a)

crust

b)

mantle

c)

outer core

d)

inner core

2.

Which layer is made (mostly) of SOLID iron and nickel?

a)

crust

b)

mantle

c)

outer core

d)

inner core

3.

Which layer of the Earth is the THINNEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

4.

Which layer of the Earth is the THICKEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

5.

Which layer is the hottest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

6.

Which layer is the coolest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

7.

What two layers make up the core?

a)

Lithosphere and

Asthenosphere

b)

Inner and Outer core

c)

Lithosphere and Outer Core

d)

Inner core and Mantle

8.

What is the middle part of the mantle that is partially molten rock, or putty like, or semisolid.

a)

Asthenosphere

b)

Mesosphere

c)

Lithosphere

d)

Crust

9.

What layer is made of mostly iron?

a)

Mantle and crust

b)

Mantle and core

c)

Inner core and outer core

d)

Crust only

10.

What is the outer most layer of the earth?

a)

Core

b)

Mantle

c)

Crust

d)

Asthenosphere

11.

Which of Earth's layers is best described as liquid metal?

a)

crust

b)

mantle

c)

outer core

d)

inner core

12.

Which of the following is true regarding the composition of the lithosphere?

a)

The lithosphere is mostly liquid, with some medium-density materials, such as silicon.

b)

The lithosphere is more plastic and flows slowly compared to the solid crust of Earth.

c)

The lithosphere includes the core and the lower portion of the mantle.

d)

The lithosphere includes the crust and the uppermost portion of the mantle, which is sold and rigid.

13.

Which of the following correctly lists the layers from innermost to outermost?

a)

inner core, outer core, lower mantle, upper mantle, crust

b)

lower mantle, upper mantle, crust, inner core, outer core

c)

lower mantle, inner core, upper mantle, outer core, crust

d)

crust, inner core, lower mantle, upper mantle, outer core

14.

As you travel from the crust to the core, how would temperature, pressure and density of the material change?

a)

They would all increase

b)

They would all decrease.

c)

Nothing, the layers are made of the same material throughout

d)

Temperature would decrease, but pressure and density would increase

15.
Scientists determine what Earth’s interior looks like by using:
a)
Volcanoes
b)
Seismic Waves
c)
Continental Drift
d)
Convection Currents
16.

The continental crust is

a)

thinner than the oceanic crust

b)

thicker than the oceanic crust

c)

the same thickness as the oceanic crust

17.
Which layer of Earth has the GREATEST density?
a)
crust
b)
mantle
c)
outer core
d)
inner core
18.
Which layer of the earth is under the highest pressure?
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner Core
19.

Earth's crust is about

a)

2900 kilometers deep

b)

410 kilometers deep

c)

15 kilometers deep

d)

50 kilometers deep

20.

This zone divides the upper and lower mantle and is a layer of soft and weak rock

a)

Crust

b)

Middle mantle

c)

Lithosphere

d)

Asthenosphere

21.

Which layer contains the gases we breathe?

a)

atmosphere

b)

lithosphere

c)

hydrosphere

d)

mesosphere

22.

Which layer contains the ground we walk on?

a)

atmosphere

b)

lithosphere

c)

hydrosphere

d)

mesosphere

23.

Which layer contains the Earth's surface water such as oceans, lakes, streams, and rivers?

a)

atmosphere

b)

lithosphere

c)

mesosphere

d)

hydrosphere

24.

Which layer is shown in red?

a)

crust

b)

mantle

c)

outer core

d)

inner core

25.

Which layer is shown in orange?

a)

crust

b)

mantle

c)

outer core

d)

inner core

26.

Which layer is shown in yellow?

a)

crust

b)

mantle

c)

outer core

d)

inner core

27.

Which layer is shown in brown?

a)

crust

b)

mantle

c)

outer core

d)

inner core

28.

Which shows the order of the layers from COOLEST to HOTTEST?

a)

crust, mantle, outer core, inner core

b)

inner core, outer core, mantle, crust

c)

crust, outer core, inner core, mantle

d)

Trick question! All of the layers are the same temperature!

29.

Which shows the order of the layers from COOLEST to HOTTEST?

a)

crust, mantle, outer core, inner core

b)

inner core, outer core, mantle, crust

c)

crust, outer core, inner core, mantle

d)

Trick question! All of the layers are the same temperature!

30.

Which layer is made of "flowing" solid rock (think clay or pudding)?

a)

crust

b)

mantle

c)

outer core

d)

inner core

31.

Which layer is made (mostly) of LIQUID iron and nickel?

a)

crust

b)

mantle

c)

outer core

d)

inner core

32.

Which layer of the Earth is the THINNEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

33.
The thinnest layer of the Earth is the ___________.
a)
mantle
b)
crust
c)
core
34.
Tectonic plates are made up of continental crust and ________ crust.
a)
continental
b)
oceanic
c)
plates
d)
mantle
35.
There are how many different types of crust?
a)
1
b)
2
c)
5
d)
3
36.
What is the thickest layer of the Earth?
a)
the crust
b)
the mantle
c)
the outer core
d)
the inner core
37.
What is the core made of?
a)
steel
b)
iron 
c)
aluminum
d)
iron and nickel
38.
What describes the outer core?
a)
solid
b)
liquid
c)
viscous
d)
gas
39.
Why is the inner core solid?
a)
its unknown
b)
what it's made of
c)
the pressure
d)
it is colder than the outer core
40.
Which layer of the Earth is the only liquid layer?
a)
Outer Core
b)
Inner Core
c)
Mantle
d)
Lithosphere
41.
Which layer(s) of the Earth make up the asthenosphere?
a)
Part of the mantle
b)
Crust, mantle, Core
c)
Crust and upper mantle
d)
Only the crust
42.
What is the correct order (starting from the surface) of Earth's layers?
a)
crust, outer core, inner core, mantle
b)
mantle, outer core, inner core, crust
c)
crust, mantle, outer core, inner core
d)
outer core, inner core, crust, mantle
43.
What layer is a semisolid and acts like a plastic?
a)
Lithosphere
b)
Mantle
c)
Asthenosphere
d)
crust
44.
The oceanic floor is made of?
a)
Granite
b)
Basalt
c)
Cookies
d)
Water
45.
The continental floor is made up of?
a)
Flowers and grass
b)
Basalt
c)
Granite
d)
Crust
46.
What happens to pressure as we move from the crust to the inner core?
a)
Pressure Decreases
b)
Pressure Increases
c)
Nothing
47.
What happens to temperature as we move from the crust to the inner core?
a)
Decreases
b)
Increases
c)
Nothing
48.
Less dense materials rise to the top.
a)
True
b)
False
49.
Which layer of Earth has the GREATEST density?
a)
crust
b)
mantle
c)
outer core
d)
inner core
50.
Which layer of Earth is made up of tectonic plates?
a)
outer core
b)
inner core
c)
asthenosphere
d)
lithosphere