Volcanic Activity
Part of a Volcano
Volcano Types
Landforms
100
The 3 places where volcanoes form.
What is hot spots, convergent and divergent boundaries.
100
A reservoir or pool of magma.
What is a magma chamber?
100
This type of volcano has a wide base and gently sloping sides.
What is a shield volcano.
100
These form when water, heated by magma, reaches the surface.
What is a hot spring?
200
Molten rock that is underground.
What is magma.
200
The opening at the top of a volcano where lava erupts.
What is a vent?
200
This type of volcano has steep sides and alternating layers of lava and ash.
What is a composite volcano?
200
These form when superheated water erupts from the ground.
What is a geyser?
300
Molten rock that is above ground.
What is lava.
300
The bowl-shaped depressions at the top of a volcano, blown out by forceful explosions.
What is a crater?
300
This is the smallest type of volcano.
What is a cinder cone volcano.
300
A large round formation at the top of a volcano made by thick lava that does not flow far from the vent.
What is a lava dome?
400
Volcanoes with this type of lava will erupt violently.
What is thick lava.
400
A bowl-shaped depression left after a magma chamber collapses, they can even have lakes!
What is a caldera
400
This type of volcano has the most violent eruptions (besides super volcanoes, of course).
What is a composite volcano.
400
A large flat area made from lava.
What is a lava plateau?
500
The 3 types of volcanoes (not the type based on size and shape).
What is active, dormant and extinct.
500
Define a subduction zone.
What is where 2 plates collide and one plate goes under the other.
500
This type of volcano is the least explosive.
What is a shield volcano.
500
This forms when magma hardens in the volcano, then outer part of the volcano is eroded?
What is a volcanic neck.
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