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volcanoes 2013

volcanoes

QuestionAnswer
Lava Molten rock when it hits the earth's surface
Magma Molten rock
Viscosity Flowing liquid
Pahoehoe Fast,moving, hot lava ,low viscosity
Aa Cooler,slow moving high viscosity
Volcanic ash Ash that comes from volcanoes particles as small as a speck of dust
Silica Coumpound made up of particles of elements of oxygen and silicon
Volcanoes A crack in the earth were magma is trapped under the earths crust
Cinder pebble sized particles
Bombs particles ranging from the size of a baseball to the size of car
lava plateau
pyroclastic flow expulsion of ash ,cinders, bombs and gases during an explosive volcanic eruption
Magma chamber Beneath a volcano , magma collects in a pocket
Pipe A long tube in the ground,connects to magma chamber
Vent Magma and gas leave the volcano through an opening
Lava flow Area covered by lava when it pours out of a vent
Crater Bowl shaped area forms at top of a volcano
Element substance in which all atoms are the same and can't be broken down
Geyser type of hot spring that erupts as a fountain of water and steam
active erupting or showing signs of erupting in the near future
caldera large hole formed when magma cooled inside the crust
extinct unlikely to erupt again
batholith mass of rock that formed when magma cooled inside
dike slab that forms when magma forces itself across rock layers
sill slab that forms when magma squeezes between layers of rock
dormant inactive
ring of fire major belt of volcanoes that rims the pacific ocean
hot springs
cinder cone volcano
Created by: krissykma11
Popular Earth Science sets

 

 



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