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Volcanoes!!!

A pack to study for a science quiz in 5th period.

QuestionAnswer
What are volcanoes? Volcanoes are openings in the Earth's surface that erupts gases, ash, and lava.
How do volcanoes form? Volcanoes form from plate tectonics like:
Convergent Boundaries Where plates move together.
Divergent Boundaries Where plates move apart.
Hotspots Places where magma is close to the Earth's surface.
Where are volcanoes found and why? They are found in different areas according to the types of volcanoes.
Cinder Cone Volcanoes The smallest of the volcanoes, mildly explosive, but because of the size, there isn't much destruction during eruptions.
Shield Cone Volcanoes Wide, large volcanoes, lava isn't viscous - thin and runny and flows out easily. Hawaiian Islands were formed from these types of volcanoes.They're made of basalt, the lava cools as it runs down the sides.
Composite or Strato Volcanoes Tall, wide, very, very explosive and extremely dangerous. Viscous lava plugs up cracks in the cone, building pressure, and causing huge explosions. The explosions vaporize part of the mountain causing a pyroclastic flow, hot ash, rock, and lava.
What magma factors affect the type of eruption? (You will have an example volcano and you will decide what type of magma it holds, due to clues.) Viscousity? Pressure? Force level? Destruction level? Location? Boundary/hotspot? Ash & pyroclast?
Can I describe the 3 types of volcanoes? Cinder Cone, Shield Cone, and Composite/Strato.
Created by: Kmocean47
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