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All About Volcanoes

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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All About Volcanoes

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  1. All About Volcanoes

  2. 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.

  3. Different types of volcanoes. • There are four main types of volcanoes. • Cinder Cone Volcanoes • Composite Volcanoes • Shield Volcanoes • Lava Dome Volcanoes

  4. 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

  5. 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.

  6. 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

  7. 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

  8. 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.

  9. 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

  10. 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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