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Section 4
Section 5
100
A flow of fast-moving cloud of ash, hot gases, and rock that explodes from an erupting volcano
What is PYROCLASTIC FLOW
100
Liquid’s ability to flow
What is VISCOSITY
100
Small,steep-sided volcano that erupts gas-rich, basaltic lava.
What is CINDER CONE VOLCANO
100
Large,steep sided volcano that results from explosive eruptions of andesite and rhyolitic s lavas
What is COMPOSITE VOLCANO
100
The main chemical in magma
What is SILICA
200
Large volcano with gentle slope of basaltic lava
What is SHIELD VOLCANO
200
Volcano that is not associated with a plate boundary
What is HOT SPOT
200
A measure of damage done by an earthquake
What is MERCALLI SCALE
200
The point where an earthquake begins
What is FOCUS
200
Based partly on the earthquake history of an area
What is EARTHQUAKE RISK
300
Molten rock that erupts onto Earth’s surface
What is LAVA
300
Tiny particles of pulverized volcanic rock and glass
What is VOLCANIC ASH
300
Vent in the Earth’s crust through which molten rock flows
What is VOLCANO
300
Dissolved amounts of viscosity that determines the explosiveness of magma
What is GASES
300
Magma that is rich in silica forms when the mantle mixes
What is CONTINENTAL CRUST
400
Molten rock below Earth’s surface
What is MAGMA
400
A measure of earthquake magnitude
What is RICHTER SCALE
400
H2o
What is WATER
400
S-wave causes particles in the ground to move side to side and up and down at right angles
What is SECONDARY WAVE
400
Is a depression formed when a volcano’s summit collapse or is blown away by an explosive eruption
What is CALDERA
500
P-wave fastest-moving type of seismic wave-causes push-pull motion
What is PRIMARY WAVE
500
To cause to disperse or disappear
What is DISSOLVED
500
Boundary where two tectonic plate separate
What is DIVERGENT
500
Magma with high silica content
What is ANDESITE
500
Boundary where one tectonic plate descends into the mantle and partially melts
What is CONVERGENT