Name ________________________________________________________ Period ______ Score _______ Unit 5 Test Review 1. For each of the following, tell which plate boundaries each of the following happens at. (there may be more than one type of boundary on some answers) Use the terms: divergent, convergent, transform, oceanic-oceanic convergent, continental-continental convergent, oceanic-continental convergent a. Plates grind past each other: ______________________________ b. Earthquakes: _____________________________________________ c. Volcanoes: ______________________________________________ d. Volcanic mountain ranges: ______________________________________________ e. Volcanic arch islands: __________________________________________________ f. Continental mountain ranges: _____________________________________________ g. Rift valleys: __________________________ h. Mid-ocean ridges (underwater mountain ranges): ____________________________ i. Subduction zones: ______________________________ j. Both earthquakes and volcanoes: ___________________________________________ k. Only earthquakes: ____________________________ l. Seafloor spreading: _______________________________ m. Ocean trenches: _________________________________ n. Produces the greatest amount of earthquakes: ________________________________ 2. What did Alfred Wegener do? ___________________________________________________________ 3. Why wasn’t Alfred Wegener’s theory accepted when he proposed it? ____________________________________________________________________________________ 4. What is the reason that the plates move? ________________________________________________ 5. What process did scientists use to discover the Mid-Atlantic Ridge? ______________________ 6. What did Harry Hess do to help bring back to life Alfred Wegener’s theory of continental drift? _________________________________________________________________________________ 7. Which layer of the Earth creates the magnetic field? ________________________ 8. What happens to the seafloor as you move away from the mid-ocean ridge? ______________________ 9. What is it called when the oceanic plate sinks under another plate? _________________________ 10. How do scientists find the plate boundaries? _______________________________________________ 11. When was the theory of plate tectonics formulated? _____________ 12. What are the 5 lines of evidence for the theory of plate tectonics? a. _________________________________ d. ______________________________________ b. _________________________________ e. ______________________________________ c. _________________________________ Draw a diagram of the way convection currents are going when plates converge. Draw a diagram of the way convection currents are going when plates diverge. Draw a picture of a divergent boundary. Include the following: magma, rift valley, mid-ocean ridge, oceanic crust, lithosphere, asthenosphere and arrows in the direction of movement Draw a picture of oceanic-oceanic convergent boundaries. Include magma, subduction zone, trench, lithosphere, asthenosphere, oceanic crust, volcanic arch islands and arrows in the correct direction of movement Draw a picture of oceanic-continental convergent boundaries. Include magma, subduction zone, trench, lithosphere, asthenosphere, oceanic crust, continental crust, volcanic mountain ranges and arrows in the correct direction of movement Draw a picture of continental-continental convergent boundaries. Include: lithosphere, asthenosphere, continental crust, continental mountain ranges and arrows in the correct direction of movement Draw a picture of transform plate boundaries. Include lithosphere, asthenosphere, and arrows in the correct direction of movement