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Name: _______________________________________ Date: _________________________________ Block: _____ Science 10 1. Plate Tectonics Diagram Questions W Z V X Y Give the letter(s) that shows the location of the following events on the diagram: Hot Spot __V___ Slab Pull__X____ Trench Formation _Z_____ Ridge Push__W______ Convection Currents __Y_____ 2. What is the term for the events happening in the following locations? W. divergent boundary_ Y. _convergent boundary (subduction)__ Z. __volcano_ Describe how the events at Y lead to the formation of Z: __W forms new ocean plate which moves east due to ridge push. Then the plate subducts under the continental plate at Y. When the oceanic Juan de Fuca plate melts under the continental plate, it forms Z.________________________________ 3. Which of the following symbols do the East Africa Ridge, the Explorer Plate and the East Pacific Rise have in common? A. I only B. I, II and III C. III and IV D. IV only E. II and III 4. It is estimated that 90% of the world’s earthquakes occur along the Ring of Fire. Describe the boundary interactions that occur in this region and why the occurrence of earthquakes is so high. _There are convergent boundaries all around the Pacific Ocean where subduction zones occur. When the plates move there are earthquakes.___ 5. This diagram shows the location of many trenches around the world. What type of boundary do A-D show? ____convergent boundaries_____ Describe the processes that lead to the formation of a trench, including a diagram of the event. ___Subduction of one plate under another, pulls the other plate deep down to form a trench. ______________________________________________________________ 6. In the chart below, decide whether the boundary, feature, and example are all correct together – if incorrect, circle or highlight the part of the event that is wrong. Boundary/Structure Hot Spot Divergent boundary Hot Spot Convergent boundary Transform Boundary Feature Volcano Continental Shield Volcano Continental/Oceanic Spreading Ridge Example Anaheim Belt African Rift Valley Hawaii Juan de Fuca Iceland breaking up Correct (Y or N) Y Y Y Y N Name: _______________________________________ Date: _________________________________ Block: _____ Science 10
