41. Volcanoes There are over 600 active volcanoes throughout the world and a lot more that are dormant, or sleeping, and we never know when they might flare up to create http://www.ivyhall.district96.k12.il.us/4th/KKhp/RocksandMinerals/volcanoes.html

IGNEOUS ROCKS SEDIMENTARY ROCKS METAMORPHIC ROCKS MINERALS ... Andesitic Volcanoes Basaltic Volcanoes There are over 600 active volcanoes throughout the world and a lot more that are dormant, or sleeping, and we never know when they might flare up to create some of the most awesome fireworks ever seen on earth. Each year there are 50 to 60 volcanic eruptions throughout the world. (Click on the icon to see an enlarged picture) Some volcanoes like this one in Hawaii can shoot a fountain of molten lava 600 feet into the air! Some of these spectacular volcanoes throw molten lava into the air higher than the Sears Tower in downtown Chicago! Volcanoes like these are called basaltic and have dense lava that flows evenly and smoothly. The lava can travel at speeds up to 70 miles per hour and reach temperatures of over 2000 degrees! The free flowing lava spreads out over a large area and usually creates a huge mound of lava that looks like a shield lying face up. Volcanoes like this are called shield volcanoes. The island of Hawaii is the largest shield volcano in the world. It starts about 15,000 feet below the surface of the ocean and rises 13,832 feet above sea level. Over the last 750,000 years it has oozed out over 80 billion tons of lava to make the island of Hawaii! If you would like to learn a lot more about the volcanoes of Hawaii and see some great photographs, check out out Virtually Hawaii Volcano Field Trips . Another great site that you won't want to miss is called Volcano World . Both of these sites have awesome pictures and a lot of excellent information about volcanoes!

42. Hawai'i Volcanoes National Park Address, phone number, hiking, sights, and camping information, maps, weather, and links. http://www.hawaii.volcanoes.national-park.com/

Hawai'i Volcanoes National Park Welcome to the Hawai'i Volcanoes National Park Page. This site is dedicated to providing useful information on Hawai'i Volcanoes National Park. Learn about the park's history and wildlife, discover scenic hiking trails and beautiful campgrounds. Plan a trip or vacation using detailed downloadable maps and referencing our sights guide, check the weather of the area, get the park address and driving directions, and find national park hotels and lodging. -SPONSORED LINKS- Hawai'i Volcanoes Lodging Hawai'i Volcanoes Hotels Hawai'i Volcanoes Maps Hawai'i Camping ... Hawai'i Volcanoes Vacation Rentals Sponsored National Park Search Hawai'i Volcanoes National Park Information Backcountry Camping Brochures, Maps, Written Info Camping Guide Ecosystem ... Wild Rabbits Hawai'i Volcanoes National Park Links Hawai'i Volcanoes National Park Trails Trails.com trail finder Hawaii Hiking Trails Hawaii Topographic Maps Trails.com topo finder Driving itineraries Hawaii Bird Watching All about birds from Birding.com The best affordable places to stay Hawaii Vacation Rentals Hawaii Golf Courses Golflink's golf course directory Hawaii Running Routes Great places to run Hawaii Fishing Hawaii National Parks Back to National Parks by John William Uhler Click Here to obtain Advertising Information on this Page This site is in no way associated with the United States Government, the Department of the Interior or the National Park Service

43. This Page Has Moved! :: Georgia Perimeter College Compare and contrast the three basic types of volcanoes (shield, composite, and cinder cone) as to size, shape and eruptive style. http://www.gpc.edu/~pgore/geology/geo101/volc.htm

Text Only Skip to Content Home Apply Now ... USG/System Services This Page Has Moved! The page that you were trying to access: http://www.gpc.edu/~pgore/geology/geo101/volc.htm has been moved to a new server. The new address is: http://facstaff.gpc.edu/~pgore/geology/geo101/volc.htm You should be redirected in 10 seconds, but you can click on the link above to go there now... Text Only A University System of Georgia Institution GPC Questions/Comments/Help Site Map var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));

44. About Volcanoes - Natural History Museum Build a volcano, let it erupt, then build another. How many types of volcano are there? Build a volcano About volcanoes http://www.nhm.ac.uk/kids-only/fun-games/volcano/about-volcanoes.html

45. GeoTopics @ GeoNet A volcano is a conical hill or mountain formed by material from the mantle being volcanoes are found in three states extinct, dormant and active. http://www.bennett.karoo.net/topics/volcanoes.html

Environmental Geography Environmental Problems Physical Geography Coasts Earthquake Ecosystems Glaciation ... National Parks Human Geography Landuse Migration Urbanisation Economic Geography Employment Structures Industry Population Home ... Contact Check out our top 10 web sites Volcanoes What is a volcano? What are the main features of a volcano? What are active, dormant and extinct volcanoes? What are the different types of volcano? ... Why do people live close to volcanoes? Case Studies The 1980 eruption of Mount St Helens The 1991 eruption of Mount Pinatubo The 2000 eruption of Popocatepetl The 2001 eruption of Mount Etna What is a volcano? A volcano is a conical hill or mountain formed by material from the mantle being forced through an opening or vent in the Earth's crust. back to top What are the main features of a volcano?

46. NOAA - National Oceanic And Atmospheric Administration - Volcanoes volcanoes. Information on Tsunamis may now be found at the NOAAWatch volcanoes theme page. Privacy Policy FOIA Information Quality Disclaimer http://www.noaa.gov/volcanoes.html

NOAA HOME WEATHER OCEANS FISHERIES ... Help Search Criteria Volcanoes Information on Volcanoes may now be found at the NOAAWatch Volcanoes theme page FOIA Information Quality USA.gov ... Contact Webmaster

47. Geography4Kids.com: Earth Structure: Volcanoes There are two main types of volcanoes shield and composite. Shield volcanoes are usually found in the middle of tectonic plates. Islands like Hawai i are http://www.geography4kids.com/files/earth_volcano.html

TYPES OF VOLCANOES There are two main types of volcanoes: shield and composite . Shield volcanoes are usually found in the middle of tectonic plates. Islands like Hawai'i are good examples of this type of volcano. There's a hole in the middle of the plate and magma moves out and piles on top of itself, slowly building a mountain of rock. That magma comes from small tunnels which scientists call vents. The other big type is a composite volcano. This type of volcano is usually what you think of as a volcano. It's shaped like a cone and mainly made up of ash, which has piled up and compacted over the years. You'd find these volcanoes in subduction zones like Mount Ararat in Turkey. The stuff that comes out is smaller. There's not so much lava but lots of small rocks and a lot of ash. Those rocks are called pyroclastic STRUCTURE BASICS We'll start at the bottom when we look at the structure of a volcano. All of the molten rock in the asthenosphere finds weaknesses in the crust. The molten rock creates a main passageway called a central vent . As the magma rises, secondary vents develop. Those secondary ones are just smaller and branch from the main tube. At the top of the volcano, at its highest point, is a

48. Understanding Volcanoes--Earth Science Lesson Plan (grades 6-8)--DiscoverySchool A shield volcano produces lava, or molten rock, when it erupts; a cinder cone produces ash; and a composite volcano is a combination of the first two. http://school.discoveryeducation.com/lessonplans/programs/understanding-volcanoe

Educator Login Passcode Login Products School Resources ... Young Scientist Challenge Enter Username Access resources you have created under your login. Teacher Tools such as: Lesson Plan Creator, Quiz Builder, and Worksheet Generator are no longer available. You can create new lesson plans and quizzes within your DE streaming account. If you don't have an account, sign up for a demo here. 6-8 > Earth Science Grade level: 6-8 Subject: Earth Science Duration: Two class periods Objectives Materials Procedures Adaptations ... Credit Objectives Understanding Volcanoes Buy this video VHS Students will understand the following: There are three types of volcanoes: shield volcanoes, cinder cones, and composite volcanoes. A shield volcano produces lava, or molten rock, when it erupts; a cinder cone produces ash; and a composite volcano is a combination of the first two. Each type of volcano has a distinct shape. Materials To prepare for this activity, line a metal tray with wax paper and place it in the refrigerator until chilled. Research materials about volcanoes (An article on volcanoes from a good encyclopedia will suffice.)

49. Volcanoes Of Canada Use this site as a resource to learn more about Canadian volcanoes and volcanology. http://gsc.nrcan.gc.ca/volcanoes/index_e.php

@import url(../_sys/css/base2.css); Natural Resources Canada www.nrcan.gc.ca Skip to content Skip to institutional links Common menu bar links Home Contact us Help Search ... Geological Survey of Canada Volcanoes of Canada Institutional links Volcanoes of Canada Home Introduction Tectonic environment Building blocks Types ... Acknowledgements Catalogue Catalogue Maps Resources Volcanology in the GSC Hoodoo Mountain project How to become a volcanologist References ... Suggested reading Related links Cordilleran geoscience Natural hazards and emergency response GSC (Vancouver) Site map ... Help Geological Survey of Canada Geological Survey of Canada Volcanoes of Canada In Focus: Nazko Cone and Nearby Earthquake Activity Canada has examples of almost every type of volcano. Although none are erupting now, at least 3 did in the last few hundred years and numerous others have the potential to erupt in the near future. Other countries' volcanoes also can affect Canadians: eruptions in Alaska or along the west coast of the U.S.A. can impact agriculture and air travel across western Canada. Mt. Baker

50. Volcanoes volcanoes create new land around the world; discover their power and history through this great collection of resources. http://geography.about.com/cs/volcanoes/

zOBT=" Ads" zGCID=" test1" zGCID+=" test9" zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 z160=zpreC(160,600);z336=zpreC(336,280);z728=zpreC(728,90);z155=zpreC(336,155);zItw=160 Search Geography var h2=document.getElementsByTagName("h2")[0];if(h2.getElementsByTagName("a")[0].firstChild.nodeValue.length>28)h2.className="long"; Home Education Geography Email ... Maps More from About.com Browse Geography Maps Country Information Cultural Geography Physical Geography ... Topics A-Z Search Volcanoes Guide picks Volcanoes create new land around the world; discover their power and history through this great collection of resources. Mount Pinatubo Eruption In 1991, the eruption of Mount Pinatubo in the Philippines killed hundreds of people and damaged thousands of homes. The volcano also had an profound effect on the earth's climate for several years following the eruption. Ring of Fire From your About.com Guide, find out more about the arc of volcanoes which circles the Pacific Ocean. Volcanoes A plethora of additional volcanic resources from Andrew Alden, the About Guide to Geology. Electronic Volcano Extensive information about volcanoes worldwide. Well presented and very informative.

51. Volcanoes | Natural Disasters And Weather Emergencies | US EPA Volcanic ash can travel hundreds to thousands of miles downwind from a volcano. Fresh volcanic ash is gritty, abrasive, sometimes corrosive, http://www.epa.gov/naturalevents/volcanoes.html

@import 'http://www.epa.gov/epafiles/s/epa.css'; Jump to main content. Natural Disasters and Weather Emergencies Contact Us Search: All EPA This Area You are here: EPA Home Natural Disasters and Weather Emergencies Volcanoes Volcanoes Mount St. Helens Live volcano-cam Current USGS update Real-Time Air Monitors Oregon Washington Volcanic gases that pose the greatest potential hazards are sulfur dioxide, carbon dioxide, and hydrogen fluoride. Locally, sulfur dioxide gas can lead to acid rain and air pollution downwind from a volcano. These gases can come from lava flows as well as a volcano that erupts violently. Volcanic ash can travel hundreds to thousands of miles downwind from a volcano. Fresh volcanic ash is gritty, abrasive, sometimes corrosive, and always unpleasant. Although ash is not highly toxic, it can trouble infants, the elderly, and those with respiratory ailments. Ash can also get in your eyes and scratch them, especially when it's windy. Ash can be hazardous to grazing livestock and can damage or force the shutdown of drinking water and wastewater treatment facilities by clogging or damaging equipment. General preparation and recovery Health issues Environmental impacts Related links How does EPA respond to volcano eruptions?

52. WebQuest volcanoes have interested and wondered people for thousands of years. With one eruption a volcano can reshape the earth s surface, destroy forests, http://coe.west.asu.edu/students/jsampson/clarquest.html

The Volcano WebQuest Paricutin, Mexico Photo taken by. K.Segerstom Message From The Creator Introduction Volcanoes have interested and wondered people for thousands of years. With one eruption a volcano can reshape the earth's surface, destroy forests, change weather patterns and replenish nutrients to the Earth's soil. Scientists are forever trying to predict the behavior of these sleeping giants. Even if they could predict an eruption there is nothing to do but watch and wonder at what new changes will be brought about. Process/ Task By participating in this WebQuest you will have the chance to actively learn through exploring on your own by playing the role of a top notch school newspaper reporter named "Scoop". As "Scoop" you will learn what a volcano is and why it erupts. You will also become an expert on the different types volcanoes and know where some of the world's most famous volcanoes are. If at the end of this WebQuest you feel you that you need more information, you will have the opportunity to go online with a volcanologist and ask any questions that you have. Have fun learning , and LET THE WEBQUEST BEGIN !!!!!!! FIRE ON THE MOUNTAIN It was a rather quiet day for Scoop . He was sitting behind his desk throwing paper basketballs into the trash can. Scoop worked for his school newspaper and was considered to be the best reporter on the staff.

53. Internet Geography - GeoTopics - Volcanoes For thousands of years volcanoes have created and taken life. They have been studied, worshiped, feared and respected. Even with current technology we are http://www.geography.learnontheinternet.co.uk/topics/volcanoes.html

Home Premium Activities GCSE ... geotopics / volcanoes GeoTopics: Volcanoes [Volcano]: n a vent or opening in the Earth's crust that that is connected to a magma chamber via a vent What is a volcano? What are the main features of a volcano? What are active, dormant and extinct volcanoes? What are the different types of volcano? ... What are the different types of volcano? Case Studies The 1980 eruption of Mount St Helens The 1991 eruption of Mount Pinatubo The 2000 eruption of Popocatepetl The 2001 eruption of Mount Etna Related Topics Plate tectonics Earthquakes Popocatepetl, Mexico (2000) For thousands of years volcanoes have created and taken life. They have been studied, worshiped, feared and respected. Even with current technology we are unable to compete with the power of a volcanic eruption. This section of Internet Geography is devoted to the study of these natural phenomena.

54. Volcano Seismicity In The Pacific Northwest Note Volcano web pages are updated only when new events are located near the This is file /SEIS/PNSN/INFO_GENERAL/volcanoes.html, last modified 10/1/07. http://www.ess.washington.edu/SEIS/PNSN/INFO_GENERAL/volcanoes.html

The Pacific Northwest Seismic Network All about earthquakes and geologic hazards of the Pacific Northwest HOME Latest Quakes Volcanoes Research ... CONTACT US Volcano Seismicity Volcano Hazards Pacific Northwest Volcano Seismicity CASCADE VOLCANO SEISMICITY Locations and 4,000 year Eruption Summary Select a Cascade Volcano: Mount Adams Mount Baker Crater Lake Glacier Peak ... Three Sisters Note: Volcano web pages are updated only when new events are located near the volcano. Other Sources of Pacific Northwest Volcano Info From NOAA - Offshore seismicity on the Juan de Fuca Ridge USGS Cascades Volcano Observatory (CVO) Mount Baker Volcano Observatory Ash plume at Mount St. Helens, circa 1984, photo by Chris Jonientz-Trisler 2005 Assessment of Volcanic Threat and Monitoring Capabilities in the US - From the USGS General Volcano Links How Volcanoes Work - From DLESE Michigan Tech Volcanoes Page Smithsonian Institution - Global Volcanism Program Dartmouth College - The Electronic Volcano ... Volcano World - K-12 This is file /SEIS/PNSN/INFO_GENERAL/volcanoes.html, last modified 10/1/07

55. BrainPOP - Animated Educational Site For Kids - Science, Social Studies, English Discover the three types of volcano and learn why each one forms in different locations Sounds like a blast! Watch the Science movie about volcanoes » http://www.brainpop.com/science/theearthsystem/volcanoes/

Volcanoes Ka-BOOM! In this explosive BrainPOP movie, Tim and Moby introduce you to the volcanoes of the world. Discover the three types of volcano and learn why each one forms in different locations and under different conditions. You’ll also find why a volcanic eruption in one place can affect climates all over the world. Tim and Moby will show you why people actually choose to live on volcanic islands, and why places with the most volcanic activity aren’t necessarily the most dangerous! You’ll also learn about the Ring of Fire — which, contrary to popular belief, isn’t really burning! Sounds like a blast! show_flash("http://brainpop.speedera.net/www.brainpop.com/science/theearthsystem/volcanoes/screenshot.swf",329,246,""); About BrainPOP BrainPOP en Espa±ol BrainPOP Jr. - K-3 Movies, Homework Help, Games for Kids ... Join our Affiliate Program Can't see the movies? Download the Flash Plug-in here. Still need help? Click here. BrainPOP offers educational animated movies for kids. This Internet site provides information of a general nature and is designed for educational purposes only. Please carefully review our User Agreement and our before using this site. Your use of the site indicates your agreement to be bound by our

56. Volcano World - The Web's Premier Source Of Volcano Info We will continue to work with our volcano web partners from around the world to keep VW fresh and add web features as they become available. http://volcano.und.edu/

Sponsored By: A Collaborative Higher Education, K-12, and Public Outreach project of the North Dakota and Oregon Space Grant Consortia administered by the Department of Geosciences at Oregon State University Hosted At: Blog On!! There have been many updates to the VW Blog! Be sure to tune in to keep up with the latest volcano information including: Eruption news and activity reports Reader submitted questions Volcano Art and more!! Click here to visit the blog now! Alien Volcanoes! Longtime VW friend Dr. Rosaly Lopes is about to release (on May 2nd, 2008) her latest volcano book, " Alien Volcanoes ." Co-Authored with artist and writer Michael Carroll, Alien Volcanoes promises to be a fascinating tour through our solar systems greatest volcanoes. The Amazon.Com book description is: If you preorder the book from Amazon, you can save 39% off the cover price!! Click here for more information and to get your copy today! Volcano of the Month Kilauea, Hawaii Volcano Village Astronomer and International Volcano Photographer, Stephen James O'Meara, snapped what may very well be some of the first photographs of red lava spattering from the brand new Kilauea Caldera Vent. Thanks for sharing with us!! For more images or information please contact Steve or Donna O'Meara The Pu`u `O`o-Kupaianaha eruption of Kilauea, now in its twenty-fourth year and 55th eruptive episode, ranks as the most voluminous outpouring of lava on the volcano's east rift zone in the past five centuries. By January 2007, 3.1 cubic km of lava had covered 117 km2 and added 201 hectares to Kilauea's southern shore. In the process, lava flows destroyed 189 structures and resurfaced 14 km of highway with as much as 35 m of lava.

57. Volcano - Wikipedia, The Free Encyclopedia A volcano is an opening, or rupture, in a planet s surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface. http://en.wikipedia.org/wiki/Volcano

Volcano From Wikipedia, the free encyclopedia Jump to: navigation search Cross-section through a stratovolcano 1. Large magma chamber 2. Bedrock 3. Conduit (pipe) 4. Base 5. Sill 6. Branch pipe 7. Layers of ash emitted by the volcano 8. Flank 9. Layers of lava emitted by the volcano 10. Throat 11. Parasitic cone 12. Lava flow 13. Vent 14. Crater 15. Ash cloud Cleveland Volcano in the Aleutian Islands of Alaska photographed from the International Space Station For other uses, see Volcano (disambiguation) A volcano is an opening, or rupture, in a planet's surface or crust , which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the extrusion of rock tends to form mountains or features like mountains over a period of time. Volcanoes are generally found where tectonic plates are pulled apart or come together. A mid-oceanic ridge , for example the Mid-Atlantic Ridge , has examples of volcanoes caused by " divergent tectonic plates " pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by " convergent tectonic plates " coming together. By contrast, volcanoes are usually not created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the

58. Volcano- EnchantedLearning.com A volcano is a place on the Earth s surface (or any other planet s or moon s surface) where molten rock, gases and pyroclastic debris erupt through the http://www.enchantedlearning.com/subjects/volcano/

Advertisement. EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages. Click here to learn more. Become a member of Enchanted Learning. Site subscriptions last 12 months. Click here for more information on site membership. $20.00/year or other amount (directly by Credit Card $20.00/year or other amount (via PayPal $20.00/year or other amount (for sending a check by mail $20.00/year or other amount (for subscribing by school purchase order As a thank-you bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages. (Already a member? Click here. Volcano Info EnchantedLearning.com Volcano Volcano Activities and Printouts Types of Volcanoes The Ring of Fire A B ... Z Volcano A volcano is a place on the Earth's surface (or any other planet's or moon's surface) where molten rock, gases and pyroclastic debris erupt through the earth's crust. Volcanoes vary quite a bit in their structure - some are cracks in the earth's crust where lava erupts, and some are domes, shields, or mountain-like structures with a crater at the summit. Magma is molten rock within the Earth's crust. When

59. Volcano World Blog Source Montserrat Volcano Observatory “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano http://volcanoworld.wordpress.com/

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); Home About VW Volcano World Blog Entries ... Comments RSS Categories Art News RAQ Volcano Activity Reports ... Veniaminof Archives May 2008 April 2008 March 2008 February 2008 ... Ubinas, Peru Posted on May 23, 2008 by cosmicbob Based on SIGMET (Significant Meteorological Information) reports, the Buenos Aires VAAC reported that ash plumes from Ubinas rose to an altitude of 5.5 and 8.5 km (18,000 and 28,000 ft) a.s.l. on 15 and 19 May, respectively. The plumes drifted E and SW. Source: Buenos Aires Volcanic Ash Advisory Center (VAAC) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.” Ubinas Peru Ubinas Tungurahua, Ecuador Posted on May 23, 2008 by cosmicbob Based on information from IG, the Washington VAAC reported that on 20 May an ash plume rose to an altitude of 7.9 km (26,000 ft) a.s.l. and drifted NW. Source: Instituto Geof­sico-Escuela Polit©cnica Nacional (IG) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

60. Volcano A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. http://www.solcomhouse.com/volcano.htm

Projects Goals Comments Site Category Map ... Awards Volcanoes USGS Graphic A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have been known to knock down entire forests. An erupting volcano can trigger tsunamis, flashfloods, earthquakes, mudflows and rockfalls. More than 80 percent of the earth's surface is volcanic in origin. The sea floor and some mountains were formed by countless volcanic eruptions. Gaseous emissions from volcano formed the earth's atmosphere. The word volcano comes from the little island of Vulcano in the Mediterranean Sea off Sicily. Centuries ago, the people living in this area believed that Vulcano was the chimney of the forge of Vulcan( Lat. Volcanus)the blacksmith of the Roman gods. They thought that the hot lava fragments and clouds of dust erupting from Vulcano came from Vulcan's forge as he beat out thunderbolts for Jupiter, king of the gods, and weapons for Mars, the god of war.

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