Download - CHAPTER 6: EARTHQUAKES AND VOLCANOES
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CHAPTER 6: EARTHQUAKES
AND VOLCANOES
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LESSON 2: VOLCANOES
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Essential Questions
How do volcanoes form? What factors contribute to the eruption
style of a volcano? How are volcanoes classified?
??
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Vocabulary
Volcano Magma Lava Hot spot Shield volcano
Composite volcano Cinder cone Volcanic ash Viscosity
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What is a Volcano?
Volcano is a vent in Earth’s crust through which melted -or molten- rock flows. Molten rock below Earth’s surface is called magma
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How do volcanoes form? Convergent Boundaries
Molten rock that erupts onto Earth’s surface is called lava
Divergent Boundaries Hot spots
Volcanoes that are not associated with plate boundaries are called hot spots
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Where do volcanoes form?
The Ring of Fire
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Types of Volcanoes Shield volcanoes
Common along divergent plate boundaries and hot spots. Are large with gentle slopes
Composite volcanoes Large, steep-sided volcanoes that result
from explosive eruptions Cinder volcanoes
Small, steep-sided volcanoes
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Volcanic Eruptions Eruption Style
Magma Chemistry Dissolved Gases
Effects of Volcanic Eruptions Lava Flows Ash Fall Mudflows Pyroclastic Volcanic Eryptions
Predicting Volcanic Eruptions
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Volcanic Eruptions and Climate Change
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Homework
Textbook: Page 211 #1-8 Workbook: Chapter 6 Write down question and
answer