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Download Name: Date: Teacher: Mrs. MarionGroup #: Visiting Volcanoes
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Name: Teacher: Mrs. MarionGroup #: Date: Visiting Volcanoes Webquest Site 1: Volcano World - Link: http://volcano.oregonstate.edu/ 1. Select the tab that says “Volcanoes” and then select “current eruption reports”. List 3 recent eruptions with their dates and locations. a. ________________________________________ b. ________________________________________ c. ________________________________________ 2. Go back to the home page. Select the tab that says “Volcanoes” and then select “Old Volcano Chart” . a. Select “Find a Volcano” from the top navigation bar. b. Scroll down and select “North America”. Scroll down and select “Mount Rainier” under the Washington State section. i. How many years ago was the most recent eruption? c. Go back to the previous page. Select “Mount St. Helens” under Washington State. i. On what date did Mt. St. Helens most recent major eruption occur? d. Go back to the previous page. Select “Yellowstone” under Wyoming. i. Where do volcanologists think the heat comes from that produces extra heat here? ii. How many “very large” eruptions has Yellowstone had in the last 2 million years? e. Go back to “Find a Volcano”. Select “Europe/West Asia”. Select “Mount Vesuvius” under Italy. i. What is Vesuvius famous for? ii. How old is the oldest dated rock? iii. Who witnessed the eruption in 79 A.D.? Complete the following sentences about Mount Vesuvius iv. About _________ feet of tephra fell on Pompeii. v.Herculaneum was buried under _______ feet of ash deposited by a pyroclastic flow. vi. Vesuvius is above a _________________ zone, where the African plate is being pushed beneath the Eurasian plate. Site 2: Roots of a Volcano – Link: http://www.msnbc.msn.com/id/11623708 Read Anatomy of a Volcano at the top of the screen in the box. Use the back and next buttons to answer the questions below. 1. Where does the molten rock, or magma, that is erupted come from? 2. How many active volcanoes are on Earth? a. Where are most of them located? 3. What plates surround the Pacific plate? 4. What happens at a subduction zone? Site 3: Looking at the Roots of a Volcano – Link: http://www.msnbc.msn.com/id/3077337 Scroll down to Volcanic facts and answer the questions below. 1. How many volcanoes are erupting every day? 2. How many active (or potentially active) volcanoes are in the United States? 3. How many volcanoes are there in Alaska? Site 4: Volcanic Hazards- Link: http://www.geo.mtu.edu/volcanoes/hazards/primer/ 1. How are volcanoes beneficial to the people living near on or near them? 2. What is Tephra? 3. When scientists study volcanoes, they map past volcanic ______________and use satellites to look at volcanic__________________, _______clouds, and gas emissions. They also monitor seismic activity, ground_____________________, and geomagnetic, gravimetric, and geoelectrical and thermal changes at a volcano. They study and monitor volcanic gases and monitor the___________________, flow rate, sediment transport, and _______________level of streams and ____________near the volcano. Site 5: Deadliest Volcanoes - Link: http://www.infoplease.com/ipa/A0197833.html 1. According to this website where was the location of the deadliest volcano? a. What year? b. How many deaths? c. What was the major cause of deaths? 2. Mudflows killed 5,110 people in what country? 3. What killed 1,475 people in Oshima, Japan? Site 6: Epic Disasters - Link: http://www.epicdisasters.com/index.php/site/comments/ the_worlds_worst_volcanic_eruptions/ 1. 1816 became known as the “___________________________” because of the volcanic ash in the atmosphere that lowered worldwide temperatures 2. The eruption, which is said to have lasted __________ hours, buried Pompeii in ten feet of volcanic ash. The intense heat—perhaps as much as _____________ degrees—carbonized much of the organic material in the area. Many of the victims have been found with the tops of their heads missing—their brains having ________________and_________________. Site 7: BBC News - Link: http://news.bbc.co.uk/2/hi/science/nature/282092.stm 1. What did the ash contain? 2. What do they mean when they say the magma is andesitic? Site 8: USGS - Link: http://pubs.usgs.gov/gip/volc/types.html 1. What are the four main kinds of volcanoes geologists generally group volcanoes into? 2. What are the simplest types of volcanoes? 3. Composite volcanoes are sometimes called ___________________________________. 4. What is the essential feature of a composite volcano? 5. Depressions such as Crater Lake, formed by collapse of volcanoes, are known as __________________. 6. What are shield volcanoes built almost entirely of? 7. Which volcano in Hawaii is known as a “giant among the active volcanoes of the world”? Site 9: Virtual Cave – Link: http://www.goodearthgraphics.com/virtual_tube/virtube.html 1. How do most lava tubes form? 2. Scroll down and select one feature from the interactive map. Name and describe your feature below. Site 10: Massachusetts Volcano Highlights and Information Link: http://vulcan.wr.usgs.gov/LivingWith/VolcanicPast/Places/volcanic_past_massachusetts .html 1. What do the exposed rocks in today’s Appalachian Mountains reveal? 2. Conglomerate is known locally as what? 3. Where is one of the best places to study geology? 4. The rocks of Newton, Massachusetts belong essentially to a single sequence made up of what? Site 11: Discovery-Virtual Volcano: Build your own Link: http://dsc.discovery.com/convergence/pompeii/interactive/interactive.html 1. Explore this site and then select “build your own volcano and watch it erupt” 2. What kind of volcano did you create? 3. What kind of eruption resulted?