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Volcanoes

QuestionAnswer
element a substance that cannot be broken down into other substances
viscosity the amount of stuff in an liquid
silica makes things thicker in a element
pahoehoe hot fat-moving lava
aa cool slow-moving lava
compound a substance made of two or more elements that have been chemically combined
lava magma when it comes out of the volcano
volcanic ash fine rocky particles as small as a speck of dust
crater forms at the top of a volcano around the central vent
lava flow at the top of the volcano around the central vent
cinders pebble sized particles
bombs particles ranging from the size of a baseball to the size of a car
magma a molten mixture of rock-forming substances, gases, and water from the mantle
shield volcano gently sloping mountain formed by repeated lava flows
cinder cone volcano cone shaped mountain formed from ash,cinders,and bombs
composite volcano mountain formed by lava flows alternating with explosive eruptions
caldera hole left by the collapse of of a volcanic mountan
magma chamber a chamber of magma under a volcano
batholith forms when a large body of magma cools inside the crust, this mass of rock will form
lava plateau high, level area formed by repeated lava flows
sill forms when magma squeezes between layers of rock and hardens
dike forms when magma forces itself across rock layers and hardens
vent where the magma leaves the volcano through an opening
pipe a long tube that connects the magma chamber to the Earth's surface
hot spring groundwater heated by a nearby body of magma, rises to the surface and collects in a natural pool
geyser is a fountain of water and steam that erupts from the ground
Ring of Fire formed by the many volcanoes that rim the Pacific Ocean
dormant a volcano that is not unlikely active now but may become active in the future
active a volcano that is erupting or has shown signs that it may erupt in the near future
extinct a volcano that is unlikely to erupt again
subduction
Created by: 1965120436
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