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Unveiling Plate Tectonics: Earth's Dynamic Crust in Motion

Delve into the fascinating world of plate tectonics and the Earth's ever-changing crust. Discover the theory of continental drift, Pangea, and the structure of the Earth's interior. Unravel the mystery of plate boundaries and the role of convection currents in driving the movement of Earth's lithospheric plates. Engage in a hands-on exploration by creating concept maps to understand how divergent, convergent, and transform boundaries shape our planet's geography. Enhance your knowledge with key terms like subduction, rift valley, and earthquake. Join the adventure and unlock the secrets of Earth's geological puzzle!

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Unveiling Plate Tectonics: Earth's Dynamic Crust in Motion

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  1. Plate Tectonics The Earth’s Crust in Motion…

  2. The Theory In 1910 Alfred begins to wonder… What’s the relationship? Perhaps all these pieces used to be connected. Continental drift=slow movement over Earth’s surface 300 million years ago…

  3. Supercontinent • Pangea – all lands • Reptiles and insects • Tropical forrests • -coal deposits Tens of Millions of years!

  4. Structure of the Earth’s Interior

  5. How does it work? Plates – pieces of the lithosphere Plates fit closely together along cracks called Plate Boundaries Convection Currents  movement

  6. Earth’s Puzzle • What plate do we live on? • What plates do we border? • USGS Earth’s Plates • How far do we move every year?

  7. Types of Boundaries • Divergent • Convergent • Transform

  8. Your Task...Get Organized • Get into teams of three • Each person will focus on one type of boundary • divergent (Column A) • convergent (Column B) • transform (Column C) • Look only at your column • Make a concept map

  9. plates are moving apart • new crust is created • Magma is coming to the surface • plates are coming together • crust is returning to the mantle • plates are slipping past each other • crust is not created or destroyed

  10. 2 oceanic plates or oceanic + continental subduction

  11. The Big Picture

  12. Key Terms for Map convergent boundary divergent boundary transform boundary subduction rift valley mid-ocean ridge continental crust oceanic crust mountain range earthquake

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