Volcano Facts
A long tube that connects the magma chamber to the Earth's surface is called _____.
What is a vent?
A major volcanic belt known as the __________ circles the Pacific Ocean.
What is the Ring of Fire?
This type of volcano is currently erupting or will erupt in the future.
What is an active volcano?
When two plates meet one plate much be ____ of which a plate will sink into the mantle.
What is more dense?
The bowl shaped area around a volcano's central vent.
What is a crater?
It happens if a volcano has magma that is high in pressure.
What is explosion/eruption?
Alternating layers of lava and ash create ___________ volcanoes.
What is composite?
A volcano that will not erupt again.
What is an extinct volcano?
At a mid-ocean ridge lava moves upward and fills in the cracks as the plates move _____.
What is away from each other?
Volcanic islands were created by the build up and solidification of ________ over a long period of time.
What is lava?
It happens to plates as it subducts.
What is melting?
Volcanoes made of primary ash, cinders and bombs are known as _______ volcanoes.
What is cinder cone?
During a quiet eruption, lava flows very _________ and will ________ everything in it's path.
What is slowly and burn/melt?
The Hawaiian Islands were formed over this weak spot in the Earth's crust.
What is a hot spot?
Gases trapped in the magma under _____ provide the force for volcanic eruptions.
What is pressure?
The smallest particles that are created by a volcanic eruption and are often shot out into a cloud during an eruption is known as _________.
What is ash?
Thin, sloped-shape, runny lava and quiet explosions produce _________ volcanoes.
What is a shield volcano?
Large, Semi-solid chunks of magma that are shot out into the air during an eruption.
What are bombs/molten rocks?
Underneath a deep ocean trench is where ________ are located and many volcanoes are formed.
What is a subduction zone?
The huge hole left behind when a volcano collapses is called _____.
What is a caldera?
Underground water heated by magma that sprays out of the Earth creates a __________.
What is geyser?
It is where plates move apart and volcanoes form
What is Continental Rift Volcanism?
It is a current that usually flows during an explosive eruption.
What is pyroclastic? or What is a pyroclastic flow?
Volcanoes that form along a mid-ocean ridge occur at _____.
What is diverging plate boundary?
A volcano in the Philippines that erupted with 6 VEI
What is Mt. Pinatubo?