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Volcano Review Quiz!

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

What is a dormant volcano?

a)

molten rock

b)

the center of a volcano

c)

will never erupt again

d)

a volcano that is sleeping, but could erupt agian

2.

What is lava?

a)

Molten rocks inside a volcano

b)

Molten rock outside a volcano

c)

small rocks

d)

magma

3.

Once magma reaches the Earth's surface it is called.......

a)

Silica

b)

Lava

c)

Rock

d)

Molten

4.
Volcanoes can be found...
a)
on land
b)
under water
c)
on islands
d)
all of the above
5.
Approximately 70% of the world's composite volcanoes are located around the Pacific Ocean in a region called the ____________. 
a)
Ring of Fire
b)
Volcano Ring
c)
Nucleus of Volcanoes
d)
Center of Fire
6.
What type of volcano is shown on the model above? 
a)
Composite Volcano
b)
Shield Volcano
c)
Cinder Cone Volcano
7.
What type of volcano is shown on the model above? 
a)
Cinder Cone Volcano
b)
Composite Volcano
c)
Shield Volcano
8.

What type of volcano is this?

a)

Shield

b)

Cinder cone

c)

Composite

9.
Which of the following terms are used to describe a volcano that may erupt at any time? 
a)
Dormant volcano
b)
Active volcano
c)
Extinct volcano
d)
Shield volcano
10.

Which type of volcano has a steep cone-shaped hill or mountain?

a)

Cinder cone volcano

b)

Shield volcano

c)

Composite volcano

d)

Earthquake

11.
What is the difference between magma and lava? 
a)
Where it is found (above or below the surface)
b)
How hot the molten rock is (lava is hotter than magma)
c)
 The type of boundary where it forms
d)
The viscosity of the molten rock (lava has a lower viscosity)
12.
What causes a volcano to erupt? (Hint: Think of a soda can)
a)
Expanding gases
b)
Expanding magma
c)
Expanding lava
d)
Expanding silica
13.
Which type of volcano has explosive eruptions (pyroclastic flow)?
a)
Composite Volcano
b)
Shield Volcano
c)
Composite and Cinder Cone Volcanoes
d)
All the above
14.
Which of the following is NOT a way to classify volcanoes? 
a)
Type of eruptions
b)
Age (dormant, extinct, active)
c)
Type (shield, cinder cone, composite)
d)
Death toll 
15.
As the temperature of lava increases, ________
a)
its viscosity decrease
b)
it begins to harden
c)
its viscosity increases
d)
it can flow a much short distance
16.
A huge hole that is left behind when a volcano collapses is called a
a)
Batholith
b)
Caldera
c)
Geyser
17.
A  place above a mantle plume where melted rock can form a volcano is a 
a)
fissure
b)
mantle plume
c)
hotspot
d)
volcano
18.
An  example of islands that formed over a hotspot are the
a)
Aleutian Islands
b)
Hawaiian Islands
19.

How can volcanoes affect the weather?

a)

Producing ash which can block the sun.

b)

Producing gas which causes plants to grow.

c)

Producing pyroclastic flow which creates more rock.

20.

A dense cloud of very hot gases and rock fragments that move downhill is

a)

rare in most volcanic eruptions

b)

the ash cloud

c)

less dense than air

d)

pyroclastic flow

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