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Download 16.2 - Earth Structure
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Earth 1/3 I. Earth’s Structure A. 4 Layers of Earth Crust Mantle Outer Core Inner Core Science Crust • Broken into 30 pieces called tectonic plates • Averages 60 miles thick 19 Earth Science 1/3 I. Earth’s Structure A. 4 Layers of Earth Crust • Broken into 30 pieces called tectonic plates • Averages 60 miles thick Mantle • Made of molten rock (liquid rock) • Magma between 2,4000 F – 3,6000 F • Crust floats on the mantle • Mantle moves about 4 inches a year 19 Earth Science 1/3 I. Earth’s Structure A. 4 Layers of Earth Crust Mantle • Made of molten rock (liquid rock) • Magma between 2,4000 F – 3,6000 F • Crust floats on the mantle • Mantle moves about 4 inches a year Outer Core •Liquid metal (iron and nickel) 19 Earth Science 1/3 I. Earth’s Structure A. 4 Layers of Earth Crust Mantle Outer Core • Liquid metal (iron and nickel) Inner Core • Made of solid metal (iron and nickel) • Hottest part of the Earth • 9,0000 F 19
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