Label Volcano
Plate Boundaries
Properties of Magma
Flow
Volcanoes/Eruptions
100
What is the top, middle of the volcano called?
Vent
100
What is an area where the crust is weak and molten magma rises to the surface?
Volcano
100
What is a substance that cannot be broken down into other substances.
element
100
What is the resistance of a liquid to flowing?
viscosity
100
What type of eruption is low in silica, high in viscosity, thick and sticky, and sets fire?
Quiet
200
What is the tube connecting the magma chamber to the vent?
Pipe
200
What is molten rock-forming substance composed of gases and water called (below the surface).
magma
200
What is a characteristic that can be measured of observed without changing the substance into another substance?
physical properties
200
The presence of what mineral affects the viscosity of magma?
silica
200
What is an eruption high in silica, high in viscosity, thick and sticky, and has bombs?
explosive
300
What is the area covered by lava called?
lava flow
300
What are the many volcanoes that surround the Pacific Ocean called?
Ring of Fire
300
What is a substance made of two or more elements chemically combined.
compound
300
What happens to viscosity of magma as the temperature increases?
decreases
300
What type of volcano is erupting or may erupt in the near future?
active
400
What is the area beneath the volcano where the magma collects?
magma chamber
400
What is an area where mantel material rises, melts, amd forms magma and eventually a volcano?
Hot Spot
400
What is a property that produces a change in composition of matter (gas produced, changes color, changes temp.)?
chemical properties
400
What is fast moving, hot lava, with low viscosity?
Pahoehoe
400
What type of volcano may become active in the future?
dormant
500
What is the bowl-shaped area around the top called?
crater
500
What is a string of islands formed by volcanoes along a deep ocean trench (Hawaii).
island arc
500
What is magma an element or compound?
compound
500
What is slow moving, cool lava, with high viscosity called?
Aa
500
What type of volcano is dead and unlikely to erupt?
extinct
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