WorksheetsVolcanoes
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
What is the definition of dormant?
a)
sleeping
b)
extinct
c)
active
d)
invisible
2.
What is a dent or depression called on a volcano?
a)
side vent
b)
bump
c)
dent
d)
crater
3.
What is the spread of lava as it pours out of a vent?
a)
magma chamber
b)
pipe
c)
lava flow
d)
crater
4.
A dead volcano is called what?
a)
active
b)
dormant
c)
extinct
5.
A low silica volcano makes what type of explosion
a)
quiet eruption
b)
explosive eruption
6.
A high silica volcano makes what type of an explosive?
a)
quiet eruption
b)
explosive eruption
7.
Beneath a volcano, magma collects in a:
a)
magma chamber
b)
magma pocket
c)
vent
d)
hole
8.
This volcano is most likely which type of volcano?
a)
Felsic
b)
Composite
c)
Shield
d)
Cinder cone
9.
Once magma reaches the earth's surface it is called.....
a)
Silica
b)
Rock
c)
lava
10.
In volcanic areas, groundwater heated by magma is a source of
a)
lava flows
b)
silicia
c)
geothermal energy
d)
pyroclastic flows
11.
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
12.
Volcanoes can be found...
a)
on land
b)
under water
c)
on islands
d)
all of the above
13.
An opening in the Earth's crust through which molten rock, gases, and ash erupts is called a(n) _____________.
a)
explosion
b)
volcano
c)
vent
d)
geyser
14.
A volcano made from alternating layers of ash and lava is called a(n) _________________ volcano
a)
composite
b)
cinder cone
c)
shield
d)
fissure
15.
Most volcanoes occur at which 2 types of plate boundaries?
a)
convergent w/ subduction and divergent
b)
divergent and transform
c)
divergent and hot spots
d)
convergent w/ subduction and hot spots
16.
A volcano with a broad base and gently sloping sides is called a _________ volcano.
a)
shield
b)
cinder cone
c)
composite
d)
fissure
17.
Smaller volcanoes that typically throw ash into the air during eruption
a)
cinder cone
b)
shield
c)
composite
d)
fissure
18.
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
19.
What is a smaller earthquake that follows a larger earthquake?
a)
Aftershock
b)
Liquefaction
c)
Seismic Gap
d)
Tsunami
20.
The outside layer of the earth is called ______________________.
a)
core
b)
crust
c)
mantle
d)
outer core
21.
The huge pieces of the earth's crust are called ____________________________.
a)
crust
b)
plates
c)
directions
d)
seismos
22.
Which of the following is not classified as pyroclastic debris?
a)
ash
b)
volcanic bombs
c)
lava
d)
volcanic blocks
100 %
