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Layers of the Earth Earth’s Layers How are the earth’s layers similar to an egg? Shell=crust Egg white=mantle Yolk=core Make a model of Earth Using paper, make a pie-shaped piece to resemble the Earth. On the front, label the following: Inner core Outer core Mantle Crust Lithosphere crust lithosphere asthenosphere Mantle Outer core Inner core Open up your segment of the Earth and… 1.Mark the layers. 2.Label the state of matter of each layer. 3.What elements make up the core? 4.Label the thickness of each layer. 5.Label the temperature of each layer using the numbers below. 12,000 F 9,000 F 4,500 F 6. Lightly color your model. 100 F State Elements Thickness Temp of Matter Inner core Outer core Mantle Asthenosphere Lithosphere What is the center layer called? INNER CORE What state of matter is it? SOLID What is it made of? IRON AND NICKEL Inner core Solid Nickel and iron 1,200 km 12,000 F The next layer of the Earth after the inner core would be the…… OUTER CORE What state of matter is the outer core? LIQUID What elements are in the outer core? Iron and Nickel Outer core Liquid Nickel and iron 2,250 km 9,000 F Why do you think the inner core is solid and the outer core is liquid? The core of our Earth is tremendously hot. It is believed to have a temperature of 7,000 degrees Celsius. Pressure keeps the inner core a solid, but allows the outer core to be a melted, liquid state. Mantle solid and plastic 2,900 km 4,500 F The mantle is a layer that is kind of like tar on a hot day. It flows, but very, very slowly. . Asthenosphere plastic The asthenosphere is just below the lithosphere. It is part of the mantle. The asthenosphere is solid rock that flows slowly, like hot asphalt or peanut butter. The lithosphere includes the crust of the Earth and the upper mantle. . It is solid. The outermost layer of our Earth is called the crust. Lithosphere, which includes the crust solid 120 km 100 F As the liquid iron and nickel in the core circulate, it creates a magnetic field. Oceanic and Continental Crust What is this layer? State of matter? Inner core Solid What is this layer? State of matter? Lithosphere Solid What is this layer? State of matter? Mantle Plastic What is this layer? State of matter? Outer core Liquid Relative Masses - Earth Name the 5 basic layers of the Earth (mentioned in your book) in order of their temperatures, from highest to lowest. Name the layer associated with CRUST this clip… Name the layer associated with this clip… OUTER CORE Name the layer associated with this clip… OCEANIC CRUST Name the layer associated with these graphics… CORE Name the layer associated with this clip… OUTER CORE Name the layer associated with this clip… Lithosphere Wrapper Hot, Melted Fudge mantle Convection – What is it? Why do Convection we care? Source: http://www.uwgb.edu/dutchs/EnvSC102Notes/102HowEarthWorks.HTM 5-40 km 2900 km 2200 km 1200 km Our scale is: 60 km = 1 mm Label the layers and state of matter. Show convection currents in mantle.