Lesson 3
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  • 1. Volcanoes
  • 2. Where are Volcanoes Found
  • 3. Where are Volcanoes FoundRing of Fire: Surrounds the Pacific ocean
  • 4. Where are Volcanoes FoundRing of Fire: Surrounds the Pacific oceanMagma: Melted rock
  • 5. Where are Volcanoes FoundRing of Fire: Surrounds the Pacific oceanMagma: Melted rockLava: Magma that reaches the Earth’s Surface
  • 6. Where are Volcanoes FoundRing of Fire: Surrounds the Pacific oceanMagma: Melted rockLava: Magma that reaches the Earth’s SurfaceCaldera: Collapsed Volcano hole
  • 7. How do Volcanoes Build Land laccolith dike batholith sill
  • 8. How do Volcanoes Build Land laccolith dike batholith sillDike: Magma hardens in vertical crack
  • 9. How do Volcanoes Build Land laccolith dike batholith sillDike: Magma hardens in vertical crackSill: Forms when magma hardens between rock layers
  • 10. How do Volcanoes Build Land laccolith dike batholith sillDike: Magma hardens in vertical crackSill: Forms when magma hardens between rock layerslaccolith: Dome shaped bubble
  • 11. How do Volcanoes Build Land laccolith dike batholith sillDike: Magma hardens in vertical crackSill: Forms when magma hardens between rock layerslaccolith: Dome shaped bubblebatholith: Storage of Magma
  • 12. Types of Volcanoes
  • 13. Types of VolcanoesShield: Built by thinner, fluid lava,have broad base and gently slopingsides
  • 14. Types of VolcanoesShield: Built by thinner, fluid lava,have broad base and gently slopingsidesCinder-cone: built by thick lava that isthrown high into the air: Form coneshaped
  • 15. Types of VolcanoesShield: Built by thinner, fluid lava,have broad base and gently slopingsidesCinder-cone: built by thick lava that isthrown high into the air: Form coneshapedComposite: Built by layers of ash andcinder
  • 16. How do Volcanoes Build Islands
  • 17. How do Volcanoes Build IslandsHawaiian Islands are an island chanformed by volcanoes
  • 18. How do Volcanoes Build IslandsHawaiian Islands are an island chanformed by volcanoesHotspot: Stationary pool of Magma
  • 19. How do Volcanoes Build IslandsHawaiian Islands are an island chanformed by volcanoesHotspot: Stationary pool of MagmaIsland Arc: Plates push down andmagma rises upward and erupts
  • 20. How do Volcanoes Build IslandsHawaiian Islands are an island chanformed by volcanoesHotspot: Stationary pool of MagmaIsland Arc: Plates push down andmagma rises upward and erupts
  • 21. How do Volcanoes Build IslandsHawaiian Islands are an island chanformed by volcanoesHotspot: Stationary pool of MagmaIsland Arc: Plates push down andmagma rises upward and eruptsVolcanoes