Transcript Volcanoes

Volcanoes
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What is a Volcano?
Inside a Volcano
5 types of Volcanoes
Elements of Eruptions
Eruptions around the
world
• Volcanic Aftermath
What is a volcano?
• A) The highest peak
in a mountain range.
• B) A flat surface on
the earth’s crust.
• C) A character on Star
Trek.
• D) A thin spot or
fissure in the earth’s
crust.
Why do volcanoes erupt?
Hot, melted rock
(magma) deep within
the earth becomes
lighter as it heats up.
Because it is lighter
than solid rock it rises
until it pushes to the
surface of the earth. A
volcanic eruption
occurs!
Melted rock that erupts from a
volcano is called . . .
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A)
B)
C)
D)
magma
lava
glupacose
molten rock
Where do volcanoes erupt?
• A) In the middle of
the earth’s plates,
hotspots.
• B) Near the edges of
the earth’s plates.
• C) Subduction and rift
zones.
• D) All of the above.
Why do volcanoes grow?
• A) Repeated eruptions
• B) There are various
types of volcanoes and
each forms differently
• C) Volcanoes were
formed when the earth
was formed and haven’t
changed much since then.
• D) Both A and B
What are the 3 main shapes of
volcanoes?
• A) Dome, Funnel, and
crater
• B) Shield, Cinder, and
Composite
• C) Volcanic, Tephra,
and Slope
• D) Hydrosphere,
Cryosphere, and
Lithosphere
A shield volcano is formed when
A) Great masses of lava
slowly ooze out from an
opening in the earth’s
crust, forming a broad,
gentle slope.*
B) Lava, huge rocks,
cinders and ash explode
high into the air forming
a steep cone up to 35
degrees.
C) Formed by quiet and
explosive eruptions.
D) Concave formation in
the earth’s crust.
A cinder cone is formed when
A) Great masses of lava
slowly ooze out from an
opening in the earth’s
crust, forming a broad,
gentle slope.
B) Lava, huge rocks,
cinders and ash explode
high into the air forming
a steep cone up to 35
degrees.*
C) Formed by quiet and
explosive eruptions.
D) Concave formation in
the earth’s crust.
A composite cone forms when
A) Great masses of lava
slowly ooze out from an
opening in the earth’s
crust, forming a broad,
gentle slope.
B) Lava, huge rocks,
cinders and ash explode
high into the air forming
a steep cone up to 35
degrees.
C) Formed by quiet and
explosive eruptions. *
D) Concave formation in
the earth’s crust.
The following shows what shape
of volcano?
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A)
B)
C)
D)
Shield
Cinder*
composite
Dome
The following shows what shape
of volcano?
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A)
B)
C)
D)
Shield
Cinder
composite*
Dome
The following shows what shape
of volcano?
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B)
C)
D)
Shield*
Cinder
composite
Dome
Mt. Loa and Kilauea are
examples of what volcano shape?
A)
B)
C)
D)
Cinder
Composite
Funnel
Shield
Cinder cone volcanoes can reach
an altitude of
A)
B)
C)
D)
45,000 feet
15,000 feet
3,000 feet
20,000 feet
Mt. Pelee on the island of
Martinique is which volcano
shape?
A)
B)
C)
D)
Composite
Funnel
Cinder cone
Shield
Mt. Vesuvius, Mt. Fujiyama, and
Mt. Rainer are what volcano
shape?
A)
B)
C)
D)
Cinder
Composite
Funnel
Shield
Volcanoes are divided into 3
types
A) Composite, shield,
and Cinder
B) Funnel, Composite,
and Cinder
C) Active, Extinct, and
Dormant
D) Crater, Funnel, Slope
These Volcanoes have erupted in
recent history.
A)
B)
C)
D)
Dormant
Extinct
Active
Explosive
These volcanoes haven’t erupted
in recorded history and show no
signs of ever erupting.
A)
B)
C)
D)
Dormant
Extinct
Active
Explosive
Dormant volcanoes
A) No activity recorded in
history.
B) Have erupted in recent
history.
C) Currently erupting.
D) Show signs of activity,
but have not erupted in
recent history. It is
“sleeping.”
The destruction from a volcanic
eruption is caused by
• A) Lava and Tephra
• B) Ash and Gases in
the air
• C) Water, Rock and
Mud
• D) all of the above
Which of the following is an
active volcano in North America?
A)
B)
C)
D)
Mt. Vesuvius
Mt. Hood
Mt. Rainer
Mt. Katmai
Which of the following
volcanoes is extinct?
A)
B)
C)
D)
Mt. Hood
Mauna Loa
Mt. Kilamajaro
Both A and C
Which of the following
volcanoes has been dormant or
sleeping?
A)
B)
C)
D)
Paricutin
Mt. Timpanogos
Mt. Hood
Squaw Peak
Mt. Vesuvius destroyed what
city?
A)
B)
C)
D)
Salt Lake City
Cairo
Pompeii
Rome
What year did Mt. St. Helens last
erupt?
A)
B)
C)
D)
1975
1980
1899
1936