ES - Chapter 7 Revie..

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Transcript ES - Chapter 7 Revie..

Chapter 7
Volcanoes
Volcanoes and
Plate Tectonics
1
Volcanoes and
Plate Tectonics
2
Volcanic
Eruptions 1
Volcanic
Eruptions 2
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Volcanoes and
Plate Tectonics
1
Volcanoes and
Plate Tectonics
2
Volcanic
Eruptions 1
Volcanic
Eruptions 2
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Volcanoes and Plate Tectonics 1
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Where does most magma form?
Volcanoes and Plate Tectonics 1
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Because of the great pressure,
what is mostly found in the
asthenosphere?
Volcanoes and Plate Tectonics 1
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What do we call an opening in
the earth’s surface where lava
comes out?
Volcanoes and Plate Tectonics 1
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What do we call a string of
volcanoes that forms along a
trench?
Volcanoes and Plate Tectonics 1
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What happens when a plate with
oceanic crust meets a plate with
continental crust?
Volcanoes and Plate Tectonics 1
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The Asthenosphere
Volcanoes and Plate Tectonics 1
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Solid Rock
Volcanoes and Plate Tectonics 1
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Vent
Volcanoes and Plate Tectonics 1
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An island arc
Volcanoes and Plate Tectonics 1
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The oceanic plate is subducted
Volcanoes and Plate Tectonics 2
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What feature was Iceland formed
over?
Volcanoes and Plate Tectonics 2
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What usually happens to magma
after it forms in the mantle?
Volcanoes and Plate Tectonics 2
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What do we call the vent and the
material that builds up around it
collectively?
Volcanoes and Plate Tectonics 2
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What occurs in an area of the
asthenosphere where
surrounding rock exerts lessthan-normal pressure?
Volcanoes and Plate Tectonics 2
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As a result of a subduction of one
plate under another, What is
magma mostly like to erupt
from?
Volcanoes and Plate Tectonics 2
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Mid-ocean ridge
Volcanoes and Plate Tectonics 2
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Rises through the cracks to the
surface
Volcanoes and Plate Tectonics 2
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Volcano
Volcanoes and Plate Tectonics 2
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Magma forms
Volcanoes and Plate Tectonics 2
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Volcano
Volcanic Eruptions 1
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Magma that erupts underwater
often forms what rounded
formations?
Volcanic Eruptions 1
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What is the type of lava that is
rich in silica and light in color?
Volcanic Eruptions 1
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What is the easiest way to
distinguish between volcanic
ash and dust?
Volcanic Eruptions 1
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What is formed when a magma
chamber empties and collapses?
Volcanic Eruptions 1
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Why are seismographs useful in
predicting volcanic eruptions?
Volcanic Eruptions 1
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Pillow lava
Volcanic Eruptions 1
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Felsic Lava
Volcanic Eruptions 1
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The diameter (size)
Volcanic Eruptions 1
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Caldera
Volcanic Eruptions 1
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It senses earthquake activity
Volcanic Eruptions 2
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What type of lava usually flows
out of oceanic volcanoes?
Volcanic Eruptions 2
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What do you call material that is
erupted from a violent volcanic
eruption?
Volcanic Eruptions 2
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Where do we most commonly
find pillow lava?
Volcanic Eruptions 2
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What kind of volcano forms when
volcanoes eject solid
fragments?
Volcanic Eruptions 2
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What volcano erupted in the late
1800’s that caused tsunamis
and a drop in global
temperatures?
Volcanic Eruptions 2
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Mafic Lava
Volcanic Eruptions 2
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Pyroclastic material
Volcanic Eruptions 2
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Mid-ocean ridges
Volcanic Eruptions 2
$800-Answer
Cinder Cone
Volcanic Eruptions 2
$1000-Answer
Krakatau
Final Jeopardy
Extraterrestrial
Volcanoes
Final Jeopardy
What is the most volcanically
active body in the solar system?
You have 1 minute to consult…
Final Jeopardy
What is the most volcanically
active body in the solar system?
You have 30 seconds to consult…
Final Jeopardy
What is the most volcanically
active body in the solar system?
You have 15 seconds to consult…
Final Jeopardy
What is the most volcanically
active body in the solar system?
Time Is Up
Final Jeopardy - Answer
Io
(one of Jupiter’s moons)
Jeopardy
Thank you for playing another
fine round of America’s
favorite question and answer
game.