Journey Through Earth's Physical Geography: A Living Planet
Explore the intricate layers of the Earth, from the core made of iron and nickel to the diverse environments of the lithosphere, hydrosphere, atmosphere, and biosphere. Learn about continental drift and the formation of the supercontinent Pangea in this fascinating overview of our dynamic planet.
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Presentation Transcript
Chapter 2: Chapter 2: Physical Geography Physical Geography - - A Living Planet A Living Planet
The Structure of the Earth The Structure of the Earth The core is the center of the earth and is made of iron and nickel. The outer core is liquid, but the inner core is solid. Surrounding the core is the mantle, which has several layers. Contains most of earth s mass. Magma, which is molten rock, can form in the mantle and rise through the crust, the thin layer of rock at the earth s surface.
On and Above the Earth Atmosphere: a layer of gases surrounding the earth.
Lithosphere (geosphere): the solid rock portion of the earth s surface
Hydrosphere: the water elements of the world, which includes oceans, seas, rivers, lakes, and water in the atmosphere.
Biosphere: the part of the earth where plants and animals live. Made up of the lithosphere, atmosphere and hydrosphere.
Continental Drift Continental Drift Continental drift hypothesis maintained that the earth was once a supercontinent (Pangea) that divided and slowly drifted apart over millions of years. https://www.youtube.com/watch?v=lJiAUvB1vEU (Bill Nye Pangea explained)
