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Plate Tectonics and Earth’s Interior Integrated Science 4 5/10 Name: Per: Procedures and Data 1. Look over the data presented below: Layer Depth below surface (km) Temperature (C)) Pressure (millions of atm) Density (g per cm3) Composition % of Earth’s mass State of matter 6378-5150 6500-6300 3.8-3.2 13.0-12.7 Fe 1.7 Solid 5150-2890 6300-5000 3.2-1.5 12.7-9.9 Fe, Ni 30.8 Liquid 2890-650 5000-2500 1.5-.4 9.9-3.3 Si, Mg, O, Fe, Al 49.2 650-50 2500-500 .4-.1 3.3-3.0 Si, Mg, O, Fe, Al 17.8 50-0 500 and less .1 and less 3.0 and less Si, Mg, O, Fe, Al, Na, K .4 Inner core Outer core Lower mantle Upper mantle (asthenosphere) Crust (lithosphere) Solid (plastic-like) Liquid (plastic-like) Solid (brittle) 2. Visual Representation: Using information from the data table above, create a drawing of a quarter section of the earth’s interior. On the drawing, label the layers, chemical composition, % of Earth’s mass and state of matter. Earth’s Surface Earth’s Interior Earth’s Surface Graphical Representation: Using the information in the data table above, use the grids to construct two graphs to represent: a. the relationship between depth and temperature of the outer boundary of each layer of the earth. b. the relationship between depth and pressure of the outer boundary of each layer of the earth. Title each graph and label all axes, including relevant units. On each graph draw a dashed vertical line at the appropriate depth to identify where each layer begins. Discussion Read pages 623- 629 in your Integrated Science textbook. Answer the questions below. 1. Consider the graphs and data table above. How do the physical properties of the earth’s interior (temperature, pressure and density) change from the core to the surface? 2. Describe how seismic waves are used by scientists to determine the structure and composition of the earth’s interior. 3. Define convection. What layers of the earth are convective? How does this process work? 4. How can our understanding of the earth’s interior help us better understand island formation?