CHAPTER 6 EARTHQUAKES AND VOLCANOES LESSON 2 VOLCANOES

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CHAPTER 6: EARTHQUAKES AND VOLCANOES

CHAPTER 6: EARTHQUAKES AND VOLCANOES

LESSON 2: VOLCANOES

LESSON 2: VOLCANOES

 ? ? Essential Questions How do volcanoes form? What factors contribute to the

? ? Essential Questions How do volcanoes form? What factors contribute to the eruption style of a volcano? How are volcanoes classified?

Vocabulary Volcano Magma Lava Hot spot Shield volcano Composite volcano Cinder cone Volcanic ash

Vocabulary Volcano Magma Lava Hot spot Shield volcano Composite volcano Cinder cone Volcanic ash Viscosity

What is a Volcano? � Volcano is a vent in Earth’s crust through which

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

How do volcanoes form? Convergent Boundaries � Molten rock that erupts onto Earth’s surface

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

Where do volcanoes form? The Ring of Fire

Where do volcanoes form? The Ring of Fire

Where do volcanoes form? Volcanoes in the United States

Where do volcanoes form? Volcanoes in the United States

Types of Volcanoes Shield volcanoes � Common along divergent plate boundaries and hot spots.

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

Volcanic Eruptions Eruption Style � Magma Chemistry � Dissolved Gases Effects of Volcanic Eruptions

Volcanic Eruptions Eruption Style � Magma Chemistry � Dissolved Gases Effects of Volcanic Eruptions � Lava Flows � Ash Fall � Mudflows � Pyroclastic Volcanic Eryptions Predicting Volcanic Eruptions

Volcanic Eruptions and Climate Change

Volcanic Eruptions and Climate Change

Homework Textbook: Page 211 #1 -8 Workbook: Chapter 6 Write down question and answer

Homework Textbook: Page 211 #1 -8 Workbook: Chapter 6 Write down question and answer