becca hansen's volcano power point
TRANSCRIPT
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Volcanoes Volcanoes Becca HansenBecca Hansen
EDU 290 8am-9:15amEDU 290 8am-9:15am
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What are volcanoes?
Volcano: A mountain where magma erupts from the earth’s surface
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Why do volcanoes form?
Plate tectonics: Huge pieces of the Earth’s crust
Plates slide along the mantle
Plates move and collide with other plates One plate pushed under another
Mountain is formed
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Where volcanoes form
Fault lines
Hot spots
Ring of fire
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Types of volcanoes Types:
Active
Dormant
Extinct
Shapes: Composite Volcano
Cinder Cone Volcano
Shield Volcano
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Types of volcanoes
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Why volcanoes erupt Rocks melt within the earth
Magma rises through vents in earth
Explosive vs. Calm eruption Thin magma = calm eruption
Thick magma = violent eruption
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Volcanic eruptions http://video.nationalgeographic.com/video/pl
ayer/environment/environment-natural-disasters/volcanoes/volcano-eruptions.html
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Lava vs. Magma Magma: Liquid rock within a volcano
Lava: What magma is called after it exits the volcano
http://video.nationalgeographic.com/video/player/environment/environment-natural-disasters/volcanoes/volcano-lava.html
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Famous volcanoes Pompeii (Mt. Vesuvius)
Mount St. Helen
Hawaii
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Pompeii
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Mount St. Helen
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Hawaii
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Fun facts! “Volcano” from the name “Vulcan” the
Roman god of fire.
Mauna Loa, in Hawaii, is the largest active volcano
Volcanoes release pressure from within the earth
1,510 active volcanoes 80 are underwater
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ReferencesInformation on volcanoes found at:
http://www.cotf.edu/ete/modules/volcanoes/vtypesvolcan1.html
http://www.ussartf.org/volcanoes.htm
http://www.woodlands-junior.kent.sch.uk/Homework/mountains/volcanoes.htm
Pictures found at:
http://www.cotf.edu/ete/modules/volcanoes/vtypesvolcan1.html
http://elainem2016.edublogs.org/2011/01/26/pompeiimt-vesuvius/
http://velvetescape.com/2009/10/plane-views-mt-vesuvius-italy/
http://www.documentingreality.com/forum/f181/1980-eruption-mount-st-helens-washington-state-usa-may-1980-a-50484/
http://brainz.org/news/43-earthquake-rattled-mt-st-helens-area-monday/5281/
http://www.mainarticleidea.net/hawaii-volcanoes/
http://www.galapagosonline.com/Galapagos_Natural_History/Geology/Hot_Spots.htm
http://virgil.org/dswo/fs/japantour/iwojima.htm
Videos found at:
http://video.nationalgeographic.com/video/player/environment/environment-natural-disasters/volcanoes/volcanoes-101.html