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Transcript
Earth Layers Key Term Descriptions Crust • • • • • Items to help you remember…. A) B) C) D) CRUST MADE OF 2 PARTS… • A)CONTINENTAL CRUST-CONTINENTS, ROCKS, SOIL=GRANITE • B)OCEANIC CRUST=MORE DENSE, SINKS UNDER CONTINENTAL CRUST=BASALT • C) LESS THAN 1% EARTH’S MASS • D) COMPOSITIONAL LAYER=ALUMINUM, SILICON, OXYGEN Mantle • • • • Items to help you remember… A) B) C) MANTLE • • • • • • • MADE OF 3 PARTS… COMPOSITIONAL LAYER A)LITHOSPHERE B)ASTHENOSPHERE C)MESOSPHERE ***REMEMBER “LAM” MOST MASSIVE LAYER OF EARTH=67% VOLCANOES UNDERWATER HERE Part of mantle and crust..Lithosphere • • • • Items to help you remember… A) B) C) LITHOSPHERE • PART OF CRUST AND MANTLE • TECTONIC PLATES FOUND HERE..PIECES • THESE TECTONIC PLATES/PIECES OF THE LITHOSPHERE “FLOAT” ON TOP OF ASTHENOSPHERE • PHYSICAL LAYER OF EARTH… • “PH” IN LITHOSPHERE=PHYSICAL Middle part of mantle..Asthenosphere • I • • • • items to help you remember… A) B) C) ASTHENOSPHERE • MIDDLE PART OF MANTLE • PLASTIC, SOFT LAYER(THINK-LAFFY TAFFY) • TECTONIC PLATES FLOAT ON TOP OF ASTHENOSPHERE • “PH” IN ASTHENOSPHERE=PHYSICAL LAYER OF EARTH Lower part of mantle..Mesosphere • A) • B) • C) MESOSPHERE • • • • LOWER PART OF MANTLE STRONG PART OF MANTLE THICKEST, BIGGEST PART OF MANTLE “PH” IN MESOSPHERE=PHYSICAL LAYER OD EARTH The Core… • Item to remember… • A) CORE • • • • • • COMPOSITIONAL LAYER OF EARTH.. CONTAINS 2 PARTS.. A) OUTER CORE B)INNER CORE 33% OF EARTH’S MASS HOT, HOT, HOT-HIGH TEMPS Outer Core… • Items to help you remember.. • A) • B) OUTER CORE • PHYSICAL LAYER OF EARTH • LIQUID PART • MADE OF MAINLYNICKEL AND IRON Inner Core.. • Items to help you remember… • A) • B) INNER CORE • PHYSICAL LAYER OF EARTH • SOLID PART • MADE MAINLY OF NICKEL AND IRON Bonus Wrap up • ?????