Volcano Facts
Volcano Types
Volcano Lava
Volcano Landforms
More Volcanoes
100
The long tube that connects the magma chamber to the Earth's surface is called....
What is the pipe.
100
Thin, runny lava produces _________ volcanoes.
What is shield.
100
_________ trapped in the magma under pressure provide the force for volcanic eruptions.
What is gases.
100
Hardened magma that remains in the pipe when softer material wears away is called ...
What is a volcanic neck.
100
The main hazard that comes from a quiet volcanic eruption would be...
What is the lava flow.
200
If a volcano has magma that is high in silica it will probably have an ___________ eruption.
What is explosive.
200
Alternating layers of lava and ash create ___________ volcanoes.
What is composite.
200
Pyroclastic flows usually occur during a(n) _________ eruption.
What is explosive.
200
A large mass of rock that forms from cooled magma inside the crust is called a(n) ______________.
What is batholith.
200
Define a lava plateau.
What is when layers of thin, runny lava build up a high level area.
300
The smallest particles that are created by a volcanic eruption are known as _________.
What is ash.
300
Volcanoes made of primary ash, cinders and bombs are known as _______ volcanoes.
What is cinder cone.
300
During a quiet eruption, lava flows very _________ and will ________ everything in it's path.
What is slowly and burn.
300
Magma that "squeezes" between the horizontal layers of rock forms a ________.
What is sill.
300
The bowl shaped area that is around the volcano's central vent is known as....
What is the crater.
400
If geologist detect many small earthquakes in the area near a volcano, they can infer is it...
What is probably about to erupt.
400
When the tip of the volcano collapses in on itself it creates a _________.
What is caldera.
400
The lava that forms from fast moving lava that is thin and and runny and looks like rope like coils when it cools is known as ___________.
What is Pahoehoe.
400
Magma that forces its way "across" the rock layers hardens to form a _______.
What is dike.
400
A string of islands that form because of the collision of two oceanic plates is known as ...
What is an island arc.
500
A dormant volcano is a volcano that can erupt in the near future? (True or False)
What is false...an active volcano.
500
Cooler lava that moves slowly and hardens into rough chunks is known as _____.
What is Aa.
500
In what location would you MOST likely find volcanoes?
What is along mid-ocean ridges where a plate is subducted.
500
A major volcanic belt known as the __________ circles the Pacific Ocean.
What is Ring of Fire.
500
Mountains that are formed by volcanoes along a coastline occur at ______________.
What is converging plate boundaries.
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