Volcanoes  Becca Hansen EDU 290 8am-9:15am
What are volcanoes? <ul><li>Volcano:   A mountain where magma erupts from the earth’s surface </li></ul>
Why do volcanoes form? <ul><li>Plate tectonics: Huge pieces of the Earth’s  crust  </li></ul><ul><li>Plates slide along th...
Where volcanoes form <ul><li>Fault lines </li></ul><ul><li>Hot spots </li></ul><ul><li>Ring of fire </li></ul>
Types of volcanoes <ul><li>Types: </li></ul><ul><ul><li>Active </li></ul></ul><ul><ul><li>Dormant </li></ul></ul><ul><ul><...
Types of volcanoes
Why volcanoes erupt <ul><li>Rocks melt within the earth </li></ul><ul><li>Magma rises through vents in earth </li></ul><ul...
Volcanic eruptions <ul><li>http://video.nationalgeographic.com/video/player/environment/environment-natural-disasters/volc...
Lava vs. Magma <ul><li>Magma: Liquid rock within a volcano </li></ul><ul><li>Lava: What magma is called after it exits the...
Famous volcanoes <ul><li>Pompeii (Mt. Vesuvius) </li></ul><ul><li>Mount St. Helen </li></ul><ul><li>Hawaii </li></ul>
Pompeii
Mount St. Helen
Hawaii
Fun facts! <ul><li>“ Volcano” from the name “Vulcan” the Roman god of fire. </li></ul><ul><li>Mauna Loa, in Hawaii, is the...
References <ul><li>Information on volcanoes found at: </li></ul><ul><li>http ://www.cotf.edu/ete/modules/volcanoes/vtypesv...
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Becca Hansen's Volcano Power Point

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Becca Hansen's Volcano Power Point

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