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Volcanoes 1
Volcanoes 2
Volcanoes 3
Volcanoes 4
Volcanoes 5
100
An opening in the Earth that erupts gases, ash, and lava is known as this.
What is a volcano?
100
Steep-sided, loosely packed volcanos formed from accumulated tephra are known as this.
What are cinder cone volcanoes?
100
Another name for silica rich magma is this.
What is granitic magma?
100
This type of volcano is composed of alternating layers of tephra and lava.
What are composite volcanoes?
100
Areas where the boundary of the Earth’s mantle and crust is particularly hot and volcanoes like Hawaii form are known as this.
What are hot spots?
200
Large depressions formed from the collapsed top of an erupted volcano is known as this.
What is a caldera?
200
An opening through which magma reaches Earth’s surface and flows out is called this.
What is a vent?
200
This type of magma is a mix between granitic and basaltic magma.
What is andesitic magma?
200
Two factors that determine whether an eruption is explosive are these.
What are water vapor/gases and silica content?
200
Igneous bodies of rock that are formed underground but later become exposed are known as this.
What are intrusive igneous bodies?
300
Basaltic or silica poor magma is associated with this type of eruption.
What are quiet eruptions?
300
Gases are able to do this in basaltic/silica poor magmas.
What is escape easily?
300
These are the places where volcanoes occur.
What are where plates are moving together or apart, and hotspots?
300
Silica rich magma is associated with this type of eruption.
What are explosive eruptions?
300
Gases are unable to do this in silica rich magmas.
What is escape easily?
400
An intrusive igneous body that is formed from a filled volcanic vent that has had its softer cone eroded away is known as this.
What is a volcanic neck?
400
Two major types of magma are these.
What are silica rich and silica poor?
400
A broad volcano with gently sloping sides is known as this.
What is a shield volcano?
400
A wave of volcanic ash and debris that rushes down the side of a volcano is known as this.
What is a pyroclastic flow?
400
The largest igneous rock bodies are known as this.
What are batholiths?
500
Another name for silica poor magma is this.
What is basaltic magma?
500
Intrusive igneous bodies that are formed when magma is forced into a crack parallel to rock layers and hardens is known as this.
What is a sill?
500
Bits of rock or solidified lava dropped from the air is known as this.
What is tephra?
500
Intrusive igneous bodies that are formed when magma is forced into a crack that cuts across rock layers and hardens is known as this.
What is a dike?
500
The steep walled depression around a volcano’s vent is known as this.
What is a crater?