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100
About how many volcanoes are active right now?
About 19000000000. just kidding! 1900
100
Where is the volcano, Kilauea located?
What is Hawaii
100
How much silica makes a quiet eruption?
A little amount
100
What is a dike?
What is magma that forces itself across rock layer that hardens
100
What is a pipe?
What is magma moving upward
200
Where are most of them located?
What is the Ring of Fire
200
Where is the volcano, Krakatou located?
What is Indonesia
200
What amount of silica makes a violent explosion?
What is a high amount
200
What is sill?
What is magma that squeezes between horizontal layers of rock
200
What is a vent?
What is an opening where magma escapes.
300
What percent of the world's volcanoes are in the ring of Fire?
What is 90%
300
Where is the volcano, Mt. Etna, located?
What is Italy
300
What causes the volcano to erupt?
What is pressure from dissolved gasses in the magma
300
What is an intrusion?
An intrusion formes when magma hardens underground
300
What is a crater?
What is a bowl-shaped area at the top of a volcano
400
What is a string of islands made by a volcano called?
What is an island arc
400
Where is Mt. St. Helens?
What is Washington
400
What volcano is made from alternating layers of lava and cinders?
What is a composite volcano
400
What is a batholith?
What is a mass of rock created when magma cuts in crust
400
What is silica?
What is a material in magma made of oxygen and silcone
500
What is a hot spot?
What is an area where material from deep within the mantle rises then melts.
500
Where is the volcano Soufriere located?
What is Meutserrat
500
What volcano is made from cinders?
What is a cinder cone volcano
500
What is a magma chamber?
What is a pocket of magma
500
What is pyroclastic flow?
What is an eruption that hurls out a mixture of gases, ash, cinders, and bombs.