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The Physical World. Chapter 2. Our Solar System. Sun Planets Strong gravitational pull of Sun keeps planets in orbit Terrestrial Planets / Gas Giant Planets Mini Solar Systems (GGP’s) Thousands of Smaller Objects in Space Asteroids, Comets, Meteoroids Siberia 1908.
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The Physical World Chapter 2
Our Solar System • Sun Planets • Strong gravitational pull of Sun keeps planets in orbit • Terrestrial Planets / Gas Giant Planets • Mini Solar Systems (GGP’s) • Thousands of Smaller Objects in Space • Asteroids, Comets, Meteoroids • Siberia 1908
Getting to Know Earth • 70 Percent is Water • Hydrosphere / Lithosphere • Atmosphere / Biosphere • Landforms • RA2-RA3 • Chimborazo!
Forces of Change • Layered Planet • IC – solid, super hot • OC – liquid, melted iron and nickel • Mantle – dense, thick and hot rock • Crust - rocky shell – broken into plates • Plate Movement • Continental Drift • No one really knows what causes CD
Internal Forces • Colliding and Spreading Plates • Subduction, Accretion and Spreading • Folds and Faults • Earthquakes / Ring of Fire • Volcanic Eruptions / Volcanoes 101
External Forces • Weathering • Physical • Chemical • Erosion • Wind • Glacial • Water