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Download Earth Science--Ch 9 Volcanoes Review Guide
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What to Know for the Ch. 9 (sec 1-3)Volcanoes Quiz—Earth Science 300 What is a volcano? Where do volcanoes occur in general? Specifically where are volcanoes located? What is the asthenosphere? Why is most of the asthenosphere solid? What is the lithosphere? What is magma? What 3 factors allow/cause magma to form? Where do we find each of these conditions? What happens to magma once it forms? Why does it do that? What is a hot spot?/ Where does most hot spot volcanic activity occur? Do hot spots move? What are the locations of some hot spots? What state was formed by a hot spot? What is viscosity? Describe a material that has low viscosity. Describe a material that has high viscosity. How is a magma’s silica content/composition related to its viscosity? How is the temperature of magma related to viscosity? How are basaltic (mafic) & rhyolitic (felsic) magmas different (in terms of viscosity & silica content)? How does silica content/magma composition affect the shape of a volcano? How does silica content/magma composition affect the type of eruption of a volcano? What is lava? What factors affect lava flows on land? Explain how…. What type of lava flows are formed? What factors affect lava flows in water? Explain how…. What type of lava flow is formed? What are pyroclastic materials? How are they classified? What is a pyroclastic flow? What determines the shape & structure of a volcano? Name the 3 types of volcanoes. Compare & contrast the 3 types of volcanoes. (Think about what they look like/shape, how they erupt, what types of materials they are primarily made of, where they tend to form.) What is a caldera? How do they form? What is formed if they fill with water? What is a lava plateau? How do they form?