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WorksheetsVolcanoes
Total questions: 17
Worksheet time: 10mins
Name
Class
Date
1.
The composition of magma determines its _____.
a)
viscosity
b)
darkness
c)
color
d)
none of the above
2.
Volcanoes are common along
a)
convergent plate boundaries.
b)
divergent plate boundaries.
c)
transform plate boundaries.
d)
two of the above
3.
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
4.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
5.
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
6.
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
7.
Highly explosive volcanoes tend to have what type of magma?
a)
magma with high silica, high viscosity, and higher gas content
b)
magma with low silica, low viscosity, and lower gas content
c)
magma with low silica, high viscosity, and lower gas content
d)
magma with no silica, high viscosity, and no gas content
8.
The particles produced in volcanic eruptions are called ____.
a)
laccoliths
b)
pyroclastic material
c)
calderas
d)
volcanic stocks
9.
Before lava reaches the surface it is called
a)
rock
b)
magma
c)
volcanic ash
d)
liquid fire
10.
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
11.
Volcanoes are common along
a)
convergent plate boundaries.
b)
divergent plate boundaries.
c)
transform plate boundaries.
d)
two of the above
12.
Which volcano is a wide, gently sloping mountains made of layers of lava and is formed by quiet eruptions?
a)
Composite
b)
Cinder-Cone
c)
Shield
d)
Stratovolcano
13.
What is the term for a fluid's tendency to resist flow?
a)
Movement
b)
Silica
c)
Pressure
d)
Viscosity
14.
What stage is a volcano in when it is considered to be "sleeping"?
a)
Dormant
b)
Active
c)
Extinct
d)
Alive
15.
TRUE OR FALSE: A substance that flows quickly has high viscosity...
a)
True
b)
False
16.
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
17.
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
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