types of volcanoes powerpoing 2
TRANSCRIPT
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Lets Review……
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Magma Chamber Lies inside the earth.
Stores hot, melted rock called magma.
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Central VentOpening at the top
of the volcano in which lava, pieces of rock and other materials pour out of.
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ConduitVertical channel or
pipe in which magma moves up before it reaches the surface of the earth.
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CraterBowl-shaped hole
which forms at the top of the volcano.
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Lava FlowLava is very hot
when it erupts out of a volcano. The lava flows down the sides of the volcano. As it moves, the lava cools and hardens.
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The Three Major Types of Volcanoes
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Volcano number 1
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Volcano number 2
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Volcano number 3
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•Volcanoes are classified by:•Their shape•The way they erupt•The materials from which they are formed
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•There are three main types of volcanoes that we need to learn about. They are:•Cinder Cone Volcanoes•Shield Volcanoes•Composite Volcanoes
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Cinder Cone Volcanoes Cone shaped with very
steep sides Relatively small-
usually less than 300m (984ft)
Built from lava fragments called cinders
Very little lava Ex: Paricutin in Mexico
and Stromboli in Italy
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Shield Volcanoes Looks like a shield Large mountains with
gentle slopes Formed from lava that
flows slowly from a crack in the Earth’s curst
Ex: Mauna Loa located in Hawaii is the largest volcano on Earth
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Composite Volcanoes
Looks like and upside-down V and has steep sides
Formed from the most explosive volcanoes
Eruptions usually occur without warning and can be very destructive
Layers of rock and lava Ex: Mount Fuji which is
located in Japan
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What type of volcano am I?
• I have large mountains with gentle slopes
Answer: Shield Volcano• I am built from lava fragments
called cindersAnswer: Cinder Cone Volcano
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What type of volcano am I?• I am made up of layers of rock
and lavaAnswer: Cinder Cone Volcano• I produce very little magmaAnswer: Cinder Cone Volcano
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What type of volcano am I?• I look like an upside-down VAnswer: Composite Volcano• I erupt usually without warning
and can be very destructiveAnswer: Composite Volcano
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What type of volcano am I?• I am relatively small in size-
usually less than 300mAnswer: Cinder Cone Volcano• Formed from lava that flows
slowly from a crack in the Earth’s crust
Answer: Shield Volcano
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What type of volcano am I?
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What type of volcano am I?