1 / 10

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.

alvin-wyatt
Télécharger la présentation

All About Volcanoes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related