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How do volcanoes form?
Where do volcanoes form?
Types of volcanoes
Volcanic Eruptions
vocabulary
100
Molten rock that erupts onto Earth's surface
What is lava?
100
the place where most volcanoes are located
What are plate boundaries?
100
The three types of volcanoes
What are shield volcanoes, composite volcanoes, and cinder cones?
100
a liquid ability to flow
What is viscosity?
100
molten rock that erupts onto earth's surface
What is lava?
200
Volcanoes that are not associated with plate boundaries are called-
What is a hot spot?
200
Alaska, Hawaii, Washington, Oregon, and northern California
What is locations of currently active volcanoes?
200
Contribution to the shape of a volcano
What is magma composition and eruption style of a volcano?
200
erupted material enriches rocks and ground soil
What are the effects of volcanic eruptions?
200
The result of explosive volcanoes
What are pyroclastic flows?
300
Form large mountains, create new crusts, and destroy anything in their path.
What are the affects of volcanoes on Earth?
300
The United State Geological Survey (USGS)
What is the name of the organization that operates volcano observatories?
300
A large volcano with gentle slopes of basaltic lavas.
What is a shield volcano?
300
mainly water vapor and small amounts of carbon dioxide, and sulfur dioxide.
What types of dissolved gases that magma contains?
300
Water mixing with mud and ash on a mountain
What is the process of a mudflow?
400
When plates spread apart, magma rises through the vent or opening between them.
What is a divergent boundary?
400
Because many people live near volcanoes
What is the reason scientists monitor earthquake activity?
400
They come from explosive eruptions of andesitic and rhyolitic lava and ash along the convergent plate boundaries.
What are Composite Volcanoes?
400
This can deform ground features, change a volcano's shape or set off a series of earthquakes.
What is moving magma?
400
Blocking sunlight and cooling Earth's atmosphere.
What are the affects of ash on the earth?
500
A place where two plates collide, the denser plate sinks, or subducts,into the hot mantle is called-
What is a convergent boundary?
500
In order to determine the possibility of future eruptions
What is the reason that scientists study the history of eruptions?
500
Made from mildly explosive volcanoes.
What are Cinder Cones?
500
people flee from its frequent eruptions
What is Mount Etna?
500
---- is released into the atmosphere from volcanoes creating a subject that reflects sunlight back into space.
What is Sulfur dioxide gas?