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WorksheetsVolcano Review
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
Which types of magma contains the least amount of SiO2
a)
rhyolitic
b)
andesitic
c)
felsic
d)
basaltic
2.
The composition of magma determines its _____.
a)
viscosity
b)
darkness
c)
color
d)
none of the above
3.
Volcanoes that are made of basalt lava flows are called _____.
a)
shield volcanoes
b)
composite volcanoes
c)
stratovolcanoes
d)
cone volcanoes
4.
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
5.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
6.
What is a determining factor in which type of eruption will occur?
a)
the chemistry of the magma
b)
the size of the mountain
c)
the climate around the volcano
d)
the number of people living near the volcano
7.
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
8.
Which list places the magma types in order of decreasing viscosity (most viscous listed first)?
a)
basaltic, andesitic, rhyolitic
b)
rhyolitic, andesitic, basaltic
c)
andesitic, basaltic, rhyolitic
d)
basaltic, rhyolitic, andesitic
9.
Once magma reaches the earth's surface it is called.....
a)
Silica
b)
Rock
c)
lava
10.
A huge hole that is left behind when a volcano collapses is called a
a)
Batholith
b)
Caldera
c)
Geyser
11.
A place above a mantle plume where melted rock can form a volcano is a
a)
fissure
b)
mantle plume
c)
hotspot
d)
volcano
12.
An example of islands that formed over a hotspot are the
a)
Aleutian Islands
b)
Hawaiian Islands
13.
Stratovolcanoes can be described as...
a)
Very large with gentle slopes and eruptions of low viscosity magma
b)
Large with steep slopes and violent eruptions of very viscous magma
c)
Small and clustered in groups with steep slopes and firey eruptions that occur only once
14.
Cinder cones can be described as...
a)
Very large with gentle slopes and eruptions of low viscosity magma
b)
Large with steep slopes and violent eruptions of very viscous magma
c)
Small and clustered in groups with steep slopes and firey eruptions that occur only once
15.
Most volcanoes occur
a)
oceanic/continental convergent
b)
oceanic/oceanic convergent
c)
transform boundary
d)
oceanic/continental divergent
16.
Volcanoes occur when magma pressure builds up under the crust. This happens mostly at:
a)
Divergent Boundaries
b)
Ocean shorelines
c)
Mountain range
d)
Subduction zone
17.
In volcanic areas, groundwater heated by magma is a source of
a)
lava flows
b)
silicia
c)
geothermal energy
d)
pyroclastic flows
18.
Which of the following is an opening through which molten rock and gas leave a volcano
a)
pipe
b)
magma chamber
c)
crater
d)
vent
19.
What is pyroclastic material?
a)
Dust, ash and other material that comes out of a volcano.
b)
A type of magma that is in a volcano.
c)
A type of volcano.
20.
Volcanoes can be found...
a)
on land
b)
under water
c)
on islands
d)
all of the above
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