Volcanic Features Volcanic Locations Volcanic EXPLOSIONS! Types of Volcanoes Volcanic Hazards
100
What is lava?
The name for magma that rises to the earth's surface
100
What is along plate boundaries?
Places where volcanoes are most likely to form
100
What is viscosity?
Resistency to flow is called a liquid's..
100
What is a shield volcano?
This volcano is built out of layers of gently flowing basaltic lava
100
What is volcanic ash?
Fine grained tephra is called this
200
What is tephra?
Solid fragments of rock that build volcanoes such as cinder cone and composite
200
What is plate boundaries at several close locations.
The reason why so many volcanoes form around the "Ring of fire"
200
What is the compostion of the magma?
This controls the way that a volcano erupts
200
What is a cinder cone volcano?
This volcano has steep sides, composed of basaltic lava and develops from layers of tephra
200
What is burying human and wildlife habitats
The greatest danger of lahar
300
What is because it is less dence and more buoyant?
The reason magma rises towards the surface of the Earth
300
What is a hot spot located near the Hawaiian Islands?
The reason why there are so many volcanoes on the Hawaiian Islands.
300
What is EXPLOSIVELY!?
The type of erruption that occurs when there is a high amount of dissolved gas in the magma.
300
What is a composite volcano?
This volcano has alternating layers of tephra and lava that develop from its quiet and explosive erruptions
300
What is acidic rain?
Gas emissions from volcanoes can form this in the atmosphere, which is hazardous to animals and plants
400
What is a vent?
The central, circular or oval shaped opening of a volcano from which magma erupts
400
What is convergent?
The Californian volcanic arc forms because of this type of plate boundary
400
What is basaltic?
Magma and lava that has low silica and low viscosity
400
What is composite?
Mount Shasta is an example of this type of volcano
400
What is pyroclastic flow?
a rapidly moving mixture of hot gases and solids that is extremely dangerous
500
What is fissure eruption?
When magma escapes from narrow and elongated cracks in the earth's surface.
500
What is Juan De Fuca plate?
The name of the plate that is responsible for forming the Calfornian volcanic arc
500
What is grantic?
Magma and lava that has high silica and high viscosity
500
What is all of them?
The type(s) of volcanoes found in California
500
What is
-contaminating the water supplies
-ash mixes with water to create lahar which moves quickly and can bury habitats
-ash can bury plants and animals and their food sources
This is an effect of volcanic ash on the environment.






Volcanoes

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