One hundred twenty-two years ago‚ one of the most destructive powers of Nature was felt around the globe. This power was from the explosion of Krakatoa‚ an island volcano that lies in the Sunda Strait. The scientists of the time struggled to comprehend the destruction that resulted from this great explosion. The results from the examination of the destruction established a landmark in learning about volcanoes. But let us back up a bit and learn exactly what happened before the Great Explosion
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Introduction For five hours‚ multiple avalanches of hot ash‚ pumice‚ and gases poured out of the crater. During explosive eruptions‚ fiery‚ pyroclastic flows travel down slope from a volcano. The Mount St. Helens pyroclastic flow spread as far as five miles north of the crater. The hot lava flows and suffocating ash falls destroying plant and animal life. The eruptions are over‚ but consequences go on. What happens to the surrounding environment after such an eruption? The Earth repairs itself from
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Situation On March 16th 1980‚ in the usually calm and tranquil southeast region of Washington State located in the Cascade Mountains‚ began to tremble with earthquake activity lasting until the afternoon of the 26th of March. This was the first of many warnings to geographers and local authorities of the impending dangerous eruption coming from the normally silent Mount Saint Helens. The richter magnitude range was 2.6-4.2. There were 142 recorded earthquakes over 2.4 in the 24 hours between March
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“The Eruption of Mount St. Helens” On May 18th‚ 1980‚ in Washington State‚ the volcano‚ Mount St. Helens erupted. This eruption caused widespread terror throughout the towns surrounding the mountain. The magma from the volcano burned up the forest and killed most of the animals in the area. It affected the wildlife greatly because‚ after the eruption‚ the ecosystem was burned and smoldered thus killing thousands of animals in the region. This eruption was the deadliest of all the volcanic activity
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After watching the NOVA film‚ In The Path of a Killer Volcano‚ we are able to learn a lot about volcanos and what is the result that comes from a volcano that has erupted. This film focuses specifically on Mt. Pinatubo in the Philippines. It walks us through the events leading up to the eruption‚ what happened during the actual event‚ and what the effects were and because we have all of this information know we are able to respond the best way possible. Scientists were watching Mt. Pinatubo very
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How much do the Pompeii and Mount St. Helens eruptions actually have in common? And how are they different? Well you would be surprised by how many similarities the two Volcanic eruptions have. But there are a lot of differences between the two eruptions as well. Both of these historic eruptions have a lot in common. For example‚ both were preceded by tremors and small earthquakes in the days leading up to both of the explosions. Another example is that both are the same type of volcano called a
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IGCSE MAGNETISM AND ELECTROMAGNETISM DEFINITIONS AND CONCEPTS HARD AND SOFT MAGNETIC MATERIALS: Materials‚ which are difficult to magnetise and de-magnetise. Soft materials are easy to magnetise and de-magnetise. MAGNETIC FIELD: The area around a magnet where another magnet would feel a force. MAGNETIC FIELD LINES: Show the direction of the magnetic field. The lines run from North to South. Where the field is strong‚ they are close together. INDUCED MAGNETISM: A magnetic material can
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IGCSE ICT Revision What is Hardware? Hardware is the physical parts of the computer system – the parts that you can touch and see. A motherboard‚ a CPU‚ a keyboard and a monitor are all items of hardware What is Software? Software is a collection of instructions that can be ‘run’ on a computer. These instructions tell the computer what to do. Software is not a physical thing (but it can of course be stored on a physical medium such as a CD-ROM)‚ it is just a bunch of codes. An operating
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will not enter into discussions or correspondence in connection with these mark schemes. Cambridge is publishing the mark schemes for the May/June 2012 question papers for most IGCSE‚ GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. Page 2 Mark Scheme: Teachers’ version IGCSE – May/June 2012 Syllabus 0580 Paper 31 Abbreviations cao correct answer only cso correct solution only dep dependent ft follow through after error isw ignore subsequent working
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PLANS AND STREETSCAPES OF POMPEII AND HERCULANEUM POMPEII: - 66 hectares in area. Only two-thirds of the site of Pompeii has been excavated. - Walls – 3.2 km of wall built from tufa. Some sections of the wall at the east of the town had been dismantled - Watch towers – some towers still remain in the wall‚ on the north side of Pompeii - Stepping stones were placed across streets to allow people to cross the street without getting wet or muddy (or worse). - Use of land: Temples‚ theatres
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