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Ch 9- 8th Grade Sci

Ch 9- 8th Grade Science-Volcanos

QuestionAnswer
Volcano A vent or fissure in the Earth's surface through which magma and gases are expelled.
Magma Chamber The body of molten rock that feeds a volcano.
Vent An opening at the surface of the Earth through which volcanic material passes.
Crater A funnel-shaped pit near the top of the central vent of a volcano.
Caldera A large, semicircular depression that forms when the magma chamber below a volcano partially empties and causes the ground above to sink.
Lava Plateau A wide, flat landform that results from repeated nonexplosive eruptions of lava that spread over a large area.
Rift Zone An area of deep cracks that forms between two tectonic plates that are pulling away form each other.
Hot Spot A volcanically active area of Earth's surface far from a tectonic plate boundary.
Created by: hsdragon
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