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Unveiling Earth's Mysteries: Geology and Plate Tectonics

Explore the Earth's physical structures, from the inner core to the crust, and the processes that shape our planet. Learn about the four spheres - atmosphere, lithosphere, hydrosphere, and biosphere - and how they interact. Discover plate tectonics, continental drift, and plate movements, including the Ring of Fire.

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Unveiling Earth's Mysteries: Geology and Plate Tectonics

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Presentation Transcript

  1. Changes within the Earth

  2. Geology • Study of Earth’s physical structures and the processes that created them.

  3. Earth • Four zones • Inner core • Solid iron • Outer core • Liquid metals (iron and nickel) • Mantle • Most of Earth’s mass • Channels of heat from core to crust • Crust • Up to 25 miles deep

  4. Earth’s Four Spheres • Atmosphere • Lithosphere • Hydrosphere • Biosphere

  5. Atmosphere • Envelope of gases surrounding Earth • 78% nitrogen • 21%oxygen

  6. Lithosphere • Solid crust of planet • Includes rock and soil • Forms continents, islands, and ocean floors

  7. Hydrosphere • All of Earth’s water • Solid • Liquid • Gas

  8. Biosphere • Includes all life forms • Plants • Animals • Overlaps other three spheres

  9. Plate Tectonics • Explains how forces inside Earth create landforms • Crust is divided into tectonic plates • 14 major • 38 minor • Continental drift • Process by which plates move • Melting • Bending • Breaking

  10. Pangea • http://www.classzone.com/books/earth_science/terc/content/visualizations/es0806/es0806page01.cfm?chapter_no=visualization

  11. Plate Movement • Three types • Spread apart • Rift valleys • Abyssal plains • Collide • Trenchs • Folds • Faults • Move laterally • Fractures • Earthquakes

  12. Ring of Fire

  13. Ring of Fire • http://grooveshark.com/#!/s/Ring+Of+Fire/3pfpnW?src=5

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