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LEARNING TARGETS- Plate Tectonics 9 What is the difference between OCEANIC CRUST and CONTINENTAL CRUST? 10 Understand the theory of PLATE TECTONICS. Include: Alfred Wegener Fossil Evidence Rock/Mountain Range Evidence Age of the Sea Floor – Seafloor Spreading Puzzle Piece Shape of Plate Boundaries 1 What are the LAYERS OF THE EARTH? Give the thickness of each layer and its composition. Include Asthenosphere and Lithosphere. 2 Define EARTHQUAKE. 3 What is a SEISMOLOGIST? 4 Understand the difference between the following SEISMIC WAVES: P-WAVES S-WAVES SURFACE WAVES 11 How do CONVECTION CURRENTS in the mantle drive Plate Tectonics? 12 How do rocks move and change forms? The rock cycle. What is an EPICENTER and FOCUS? How do seismologists locate EPICENTERS? 13 How do engineers make a building safe? 14 What are the major factors that determine the intensity of ground shaking from an earthquake? 15 What are the 3 types of earthquakes the Pacific Northwest could experience? How and where do they occur? 16 What evidence led scientists to believe that the last MEGATHRUST QUAKE in Washington occurred in January of 1700? 5 6 Locate the following: THE RING OF FIRE THE MID-ATLANTIC RIDGE THE 7 PRIMARY PLATES AND 8 SECONDARDY PLATES CASCADIA SUBDUCTION ZONE 7 How do scientists study the interior structure of the earth? 8 Where do most volcanoes and earthquakes occur?