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The Changing Earth Chapter 3: Mountains  and Volcanoes
Section 3.1 Movement of Rock  Builds Mountains
Most mountains form along plate boundaries. ,[object Object],[object Object],[object Object],[object Object]
Continued – See page 78
Continued – See page 78
Continued ,[object Object],[object Object],[object Object],[object Object]
Continued – See page 79
Mountains can form as  rock folds. ,[object Object],[object Object],[object Object]
Continued – See page 81
Mountains can form as rocks move along faults. ,[object Object],[object Object],[object Object]
Continued – See page 83
Section 3.2 Volcanoes Form as Molten Rock Erupts
Volcanoes erupt many types of material. ,[object Object],[object Object],[object Object]
Continued – See page 88
Continued ,[object Object],[object Object]
Continued – See page 87
Most volcanoes form along plate boundaries. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Continued - See page 89
Volcanoes can have many shapes and sizes. ,[object Object],[object Object],[object Object],[object Object]
Continued  - See page 90
Continued – See page 91
Scientists monitor volcanoes. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Both shield and composite volcanoes can form features called calderas, a huge crater formed by the collapse of the volcano when magma rapidly erupts from underneath it.
Section 3.3 Volcanoes Affect Earth’s Land, Air, and Water
Volcanic eruptions affect the land. ,[object Object],[object Object],[object Object],[object Object]
Continued – See page 97
Continued ,[object Object],[object Object],[object Object]
Continued Deep –Sea Vents Lower Temperature Mudflows Fumaroles Haze Landslides Geysers Adds to Acid Rain Volcanic Ash Hot Springs Poisonous Gases Lava Water Air  Land Materials From Volcanic Eruptions Affect Earth
Continued ,[object Object],[object Object],[object Object],[object Object]
Volcanic gases and ash  affect the air. ,[object Object],[object Object],[object Object],[object Object]
Volcanic activity affects water. ,[object Object],[object Object],[object Object],[object Object]
Continued  - See page 101
Geyser Fumarole
Hot Spring Deep-Sea Vent

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Chapter 3 Mountains and Volcanoes