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WorksheetsVolcanoes
Total questions: 25
Worksheet time: 35mins
Name
Class
Date
1.
A line of volcanic activity that surrounds the Pacific Ocean basin is the
a)
Ring of Fire
b)
Aleutian Islands
c)
Hawaiian Islands
d)
Caribbean Islands
2.
Which of these volcanic particulates is the largest in size?
a)
Block
b)
Ash
c)
Bomb
d)
Lapilli
3.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
4.
Which of the following factors helps determine whether a volcanic eruption will be violent or relatively quiet?
a)
amt of dissolved gases
b)
temp of magma
c)
composition of magma
d)
all of the above
5.
What type of volcano is built almost entirely from ejected lava fragments?
a)
cinder cone
b)
composite cone
c)
shield volcano
d)
pahoehoe volcano
6.
Once magma reaches the earth's surface it is called.....
a)
Silica
b)
Rock
c)
lava
7.
Magma leaves a volcano through a
a)
dike
b)
sill
c)
vent
8.
An explosive eruption occurs if magma is
a)
low in viscosity
b)
high in silica
c)
very thin
9.
When a volcano erupts quietly, what kind of mountain forms?
a)
A Shield Volcano
b)
Cinder Cone Volcano
c)
Composite Volcano
10.
Volcanoes are common along
a)
convergent plate boundaries.
b)
divergent plate boundaries.
c)
transform plate boundaries.
d)
two of the above
11.
Volcanoes are common along oceanic trenches because this is where
a)
most hotspots are found.
b)
subduction occurs.
c)
new seafloor forms.
d)
none of the above
12.
An example of islands that formed over a hotspot are the
a)
Aleutian Islands
b)
Hawaiian Islands
13.
An example of islands that formed over a convergent plate boundary are the
a)
Aleutian Islands
b)
Hawaiian Islands
14.
__________ volcanoes are usually steep sided. They are formed from layers of ash and lava.
a)
Shield
b)
Cone
c)
Dormant
d)
Extinct
15.
A subduction zone is...
a)
plates pull apart.
b)
the continental plate slides under the oceanic plate.
c)
where the oceanic plate slides under the continental plate.
d)
plates slap each other a high five.
16.
Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called
a)
shield volcanoes
b)
cinder cone volcanoes
c)
composite volcanoes
d)
lava plateaus
17.
Before lava reaches the surface it is called
a)
rock
b)
magma
c)
volcanic ash
d)
liquid fire
18.
If geologists detect many small earthquakes in the area near a volcano, what can they infer about the volcano?
a)
It is dormant
b)
It is probably about to erupt
c)
It is extinct
d)
It is a good source of geothermal energy
19.
What provides the force that causes magma to erupt to the surface?
a)
the silica in the magma
b)
dissolved gases trapped in the magma
c)
gravity in the lithosphere
d)
the density of the magma
20.
Which process of volcano formation is represented in the figure?
a)
hot spots
b)
convergent boundaries
c)
divergent boundaries
d)
land locked land masses
21.
What type of boundary is this?
a)
Divergent
b)
Convergent
c)
Transform
22.
What type of volcano is composed of layers of pyroclastics and lava flows?
a)
Stratovolcano
b)
Cindercone Volcano
c)
Shield Volcano
23.
Which type of volcano has hawaiian eruptions?
a)
Stratovolcano
b)
Cindercone Volcano
c)
Shield Volcano
24.
Would a volcano be found at a transform boundary?
a)
Yes
b)
No
25.
Not a Volcano type?
a)
Shield
b)
Pyramid
c)
Cinder Cone
d)
Composite
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