Types and Stages of Volcanoes
Volcano Vocabulary
Volcanoes and Plate Tectonics
Parts of a Volcano
All About Volcanoes
100
A volcano that is erupting or is showing signs that it may erupt.
What is an active volcano?
100
A volcano that is sleeping.
What is a dormant volcano?
100
most volcanoes occur along this type of plate boundary
What is diverging plate boundary?
100
The inside of the volcano where all of the magma collects.
What is the magma chamber.
100
Molten material mixture of rock-forming substances, gases, and water from the mantle.
What is magma?
200
A volcano that is dead and will never erupt again.
What is an extinct volcano?
200
A mass of rock formed when a large body of magma cools inside the crust
What is a batholith?
200
A major volcanic belt formed by many volcanoes that rim the Pacific Ocean.
What is the Ring of Fire?
200
The part of the volcano where the magma moves up.
What is the pipe?
200
Fast-moving, hot lava. When it hardens it looks smooth with wrinkles.
What is pahoehoe?
300
A volcano that is wide and gently sloping and formed from repeated layers of thin runny lava.
What is a shield volcano?
300
The huge hole left by the collapse of a volcanic mountain.
What is a caldera?
300
This formed the Hawaiian islands.
What is a hot spot?
300
Magma that has reached the surface.
What is lava?
300
Occurs when an explosive eruption hurls out ash, cinders, bombs, and gases.
What is a pyroclastic flow?
400
A volcano that is formed from alternate layers of lava and ash, cinders, and bombs.
What is a composite volcano?
400
In volcanic areas, water heated by magma can provide a clean, reliable type of energy.
What is geothermal energy?
400
Most volcanoes form along this ridge.
What is the mid-ocean ridge?
400
The river of lava that pours down the side of the volcano.
What is a lava flow?
400
A material that is formed from the elements oxygen and silicon.
What is silica?
500
A volcano that is formed from an explosive eruption of ash, cinders, and bombs.
What is a cinder cone volcano?
500
When magma squeezes between layers of rock.
What is a sill?
500
These places have volcanoes that rise above the ocean's surface.
What is the Iceland and Azores Islands
500
The bowl shaped area that may form at the top of a volcano around the volcano's central vent.
What is a crater?
500
Magma that is high in silica will produce this type of lava.
What is thick and light colored lava?
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