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Volcanoes

Mr. Smith's 6th grade Science

QuestionAnswer
resembles a huge, deep, irregularly shaped mountain range underground of cooled magma batholith
formed when magma hardens in vertical cracks dike
formed when magma hardens between horizontal layers of rock pushing it upward sill
the magma in a sill is thick so it pushes upward into a cone shape laccolith
when magma pushes upward, pushing layers of rock into a broad and circular shape dome mountain
this is inside a volcano. it is molten rock that eventually rises to the surface magma
this is outside the volcano. it has this name once it comes out of the volcanic vent lava
Where are most volcanoes in the world located? along convergent plate boundaries
How were the Hawaiian Islands formed? The plate is moving over a hot spot. The magma comes up through the crust and forms volcanoes and new land.
volcano that has not been active in a long time but HAS erupted in recorded history dormant
volcano that HAS NOT erupted in recorded history extinct
central opening of a volcano vent
a cuplike hollow around the vent at the top of the volcano crater
very hot part of the mantle in the middle of a plate that causes volcanoes and islands to form hot spot
heat from below the Earth's surface Geothermal Energy
Created by: mtoutant
Popular Earth Science sets

 

 



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