How / Where Volcanoes Are Made
Parts of a Volcano
Lava / Pyroclasts
Volcano Types
Mt. St. Helens
100
This is the nickname for the major belt around the Pacific Ocean where the majority of Earth's volcanoes are found.
What is the Ring of Fire?
100
This is the part of the volcano at the base which is filled with magma
What is the magma chamber?
100
This type of lava is light in color, thick and found in explosive eruptions
What is felsic lava?
100
This type of volcano is broad, gently sloped, and non-explosive
What is a shield volcano?
100
Mt. St. Helens is this type of volcano
What is a Composite Volcano?
200
This process which involves one plate being forced underneath another plate is the way most volcanoes are formed.
What is subduction?
200
This is the central opening at the top of the volcano
What is a vent?
200
This type of lava is dark, thin and forms in non-explosive eruptions
What is mafic lava?
200
This type of volcano is large, extremely explosive, and produces large amounts of pyroclasts
What is a composite (stratovolcano) volcano?
200
Mt. St. Helens is found in this state
What is Washington?
300
Most volcanoes occur along these type of plate boundaries
What are convergent boundaries (Oceanic-Continental)?
300
This feature forms at the top of a volcano after an explosive eruption
What is a crater?
300
This is the name mafic lava which hardens slowly and has a "ropy" texture
What is pahoehoe?
300
This type of volcano is small and cone-shaped, and produces lava fragments called cinders
What is a cinder-cone volcano?
300
The Mt. St. Helens eruption killed this many people
What is 57?
400
The Hawaiian Islands were formed by this volcanic feature
What is a hot spot?
400
This is the passage that magma travels through before reaching the opening
What is the conduit?
400
This is the name of mafic lava which cools rapidly and takes on a jagged texture
What is aa?
400
This famous shield volcano is found on the island of Hawaii
What is Kilauea?
400
Mt. St. Helens last erupted in this year
What is 1980?
500
These are the four continents which the Ring of Fire borders
What is North America, South America, Asia, and Australia?
500
This is a depression-shaped feature which forms when a volcanic cone collapses into an empty magma chamber
What is a caldera?
500
This is a form of pyroclast ranging from 2mm-64mm in diameter
What is lapilli?
500
This famous cinder-cone volcano found in Mexico grew from nothing to over 1100 feet tall in 1943
What is Paricutin?
500
These two events preceded the last eruption of Mt. St. Helens
What is an earthquake and a landslide?
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