NEW
Font size
WorksheetsVolcano
Total questions: 30
Worksheet time: 15mins
Magma that reaches the Earth's surface is called
pyroclastic debris
magma
lava
lahar
Which of the following is an area where you would not find a volcano?
Transform Plate boundary
Seafloor spreading Ridges
The "Ring of Fire"
Fissure eruptions
Magma fills cracks at areas where two plates are , this is spreading area occurs at a
convergent boundary.
subduction zone.
divergent boundary.
transform boundary.
A linear volcanic crack where lava flows out is called a
fissure eruption.
lava crack eruption.
magma eruption.
lahar eruption.
Volcanoes can also be found in areas called
Lahars.
Cold spots.
mantles.
Hot spots.
The most common type of volcanic eruption produces only lava flows is called a
explosive eruption.
nonexplosive eruption.
neither of the above.
both of the above.
Which of the following is not a type of volcano?
Lahar
Cinder Cone
Composite
Shield
Which of the following volcano is classified as a nonexplosive volcano?
Lahar
Cinder Cone
Composite
Shield
Which type of volcano is composed of low silica lava, thus produces only lava flows, these volcanoes are very wide compared to their height?
Lahar
Cinder Cone
Composite
Shield
Mauna Loa volcano is a
cinder cone volcano.
Shield volcano.
composite volcano.
dome volcano.
Which of the following is not classified as pyroclastic debris?
ash
volcanic bombs
lava
volcanic blocks
Pyroclastic means
fire rock.
hot rock.
exploding rock.
fire lava.
This type of volcano is taller then it is wide and the explosive pyroclastic material falls close to the volcano vent?
dome
cinder cone
composite
shield
This type of volcano is the most violent, it has both lava flows and pyroclasitc material that can be alternating between eruptions?
dome
cinder cone
composite
shiled
Found in composite volcanoes vent area.
dome
cinder cone
lahar
shield
Which of the following is NOT a part of a volcano?
volcanic neck
vent
sill
magma chamber
Explosive magma can have all of the following EXCEPT?
Low water content
High CO2 content
High silica content
High water content
Silica rich magma will be thick, stiff, flows slowly and
be soft at the vent which allows the lava to flow easily.
hardens in the magma chamber.
hardens at the vent which causes pressure to build up inside the volcano.
a higher temperature which causes it to flow easily.
This type of lava will pour out quickly and will form a brittle jagged crust?
blocky
pillow
pahoehoe
aa
This type of lava forms under water?
blocky
pillow
pahoehoe
aa
Which of the following is NOT a way to protect people during a volcanic eruption?
cooling the lava so it becomes more viscous.
evacuation of people
diverting the lava away from people.
none of the above.
This type of pyroclastic debris can be ejected high up into the atmosphere?
ash
volcanic blocks
volcanic bombs
lapilli
A denser then air mixture of hot gasses, and ash that rushes down the side of a volcano during an eruption?
Lahar
Nuees Ardentes
pyroclastic
cloud
A volcanic mud flow that can consist of water, ash, trees and more.
Lahar
Nuees Ardentes
volcanic blocks
volcanic clouds
Volcanoes can emit all of the following except
toxic and non-toxic gases.
steam explosions.
lava.
rain.
Which of the following is an example of a secondary affect to a volcanic eruption?
global warming
global cooling
decrease in precipitation
increase in temeperature
All of the following are precursors to a volcanic eruption except which one?
Increase in shallow small earthquakes
bulging of sides
acidity levels in water and soil increase.
temperatures begin to cool
All of the following are problems with responses to volcanic eruption predictions except?
Call for evacuation and nothing happens, cause people to not listen next time.
Can cause problems with future tourism.
nothing
Can cost businesses money.
Largest super volcano in the world?
Yellowstone National Park
Mammoth Lake
Mr. St. Helens
Hawaii
An area where magma is forced to the surface through a vent?
sill
volcano
trench
basin
