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All About Volcanoes. What is a Volcano?. A volcano is mountain that that leads to a pool of molten lava below the surface of the earth. A volcano consists of a magma chamber, main vent, and a crater. Different types of volcanoes. There are four main types of volcanoes.

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what is a volcano
What is a Volcano?
  • A volcano is mountain that that leads to a pool of molten lava below the surface of the earth.
  • A volcano consists of a magma chamber, main vent, and a crater.
different types of volcanoes
Different types of volcanoes.
  • There are four main types of volcanoes.
      • Cinder Cone Volcanoes
      • Composite Volcanoes
      • Shield Volcanoes
      • Lava Dome Volcanoes
where are volcanoes located
Where are volcanoes located?
  • Most Volcanoes are located where two of earths plates collide.
  • Most volcanoes are located in the Pacific Ring of Fire.
      • Over 75% of the world’s active volcanoes are here.
      • Nearly 450 volcanoes in a
what causes a volcano to erupt
What causes a volcano to erupt?
  • The earth’s core is extremely hot and it heats the magma.
  • When the magma gets really hot it begins to bubble.
  • This bubbling creates carbon dioxide gas that expands.
  • The expanding carbon dioxide gas creates pressure and pushes the magma up the vent of the volcano, causing an eruption.
famous volcanoes
Famous volcanoes
  • Mount St. Helens, Washington.
      • Still active volcano that is famous for its eruption on May 18, 1980.
      • Most deadliest and destructive volcano in US history.
          • 57 people died
          • 250 homes destroyed
          • 185 miles of highway destroyed
  • Krakatoa, Indonesia.
      • Erupted on May 27,1883.
      • Explosion was the loudest sound recorded in history.
      • Eruption generated a tsunami.
          • 36,417 people died
          • 164 villages destroyed
          • Thousands injured
          • 2/3rds of the island was destroyed
impacts effects and damages caused by volcanoes
Impacts, effects, and damages caused by volcanoes
  • Results in hazards such as:
      • Pyroclastic flows- quickly moving gas, ash, and volcanic rocks that can kill people if they are caught in them.
      • Volcanic ashes- are like small sharp glass particles that can cut off the oxygen supply.
      • Lahars- mudflows from mixing ash and water that can carry large boulders and logs. It can topple and cover buildings and can result in crushing or drowning fatalities.
      • Lava flows- quickly moving and very destructive since they burn and bury everything they come in contact with.
  • Volcanoes can cause:
      • Landslides
      • Floods
      • Tsunamis
  • Loss of life
  • Destroys homes, communities, businesses, and the landscape
  • Economic decline
  • Destroys highways
  • Destroys bridges
safety measures when volcanoes erupt
Safety measures when volcanoes erupt
  • Follow evacuation orders and warnings.
  • Learn about community warning systems and evacuation plans.
  • Avoid low lying areas.
  • Seek shelter inside.
  • Close windows.
  • Prepare disaster kit that includes:
      • Breathing mask
      • Goggles
      • Evacuation supplies
  • Wear long sleeve shirts and pants.
  • Keep mouth and eyes covered.
  • Turn off car or truck engines if caught outside.
  • Listen to radio for latest emergency updates.
works cited
Works Cited

www.weatherwizkids.com

http://www.disastercenter.com/guide/volcano.html

http://www.spartechsoftware.com/reeko/ScienceTips/SciTipVolcano.htm

http://en.wikipedia.org/wiki/Mount_St._Helens

http://en.wikipedia.org/wiki/Krakatoa

http://library.thinkquest.org/17457/volcanoes/effects.php

http://en.wikipedia.org/wiki/Pacific_Ring_of_Fire

works cited pictures in order of appearance
Works Cited Pictures(in order of appearance)

http://farm2.static.flickr.com/1055/639596829_7d72a81b05.jpg

http://www.weatherwizkids.com/volcano_diagram.jpghttp://www.withfriendship.com/user/images/226/kilauea-volcano.jpg

http://students.umf.maine.edu/~schoolcr/images/volcano.jpg

www.fs.fed.us

www.geology.sdsu.edu

http://zone.cps.k12.il.us/Projects/Grades_9-12/Volcanoes/Activity_3/activity_3.html

www.solcomhouse.com/images/volcanotyypki.jpg

http://en.wikipedia.org/wiki/Image:Pacific_Ring_of_Fire.png

http://news.bbc.co.uk/nol/shared/spl/hi/pop_ups/04/world_how_volcanoes_erupt/img/5.jpg

http://www-tc.pbs.org/wgbh/nova/volcano/images/anat_lava.jpg

http://www.tasmedia.org/files/lahar.jpg

http://www.rainier-redcross.org/images/Build_Kit_1C.jpg

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