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Plate tectonics NB Name: ______________________________________________________ Period: ______ Date: __________ Essential Question: How is our planet affected by plate boundaries? 1. Who is Alfred Wegener? _________________________________________________________________________________________________ 2. What happened to the supercontinent Pangaea? _________________________________________________________________________________________________ 3. How did Alfred Wegener use FOSSILS to explain the Continental Drift theory? _________________________________________________________________________________________________ 4. How did Alfred Wegener use the CONTINENTS to explain the Continental Drift theory? _________________________________________________________________________________________________ 5. How did Alfred Wegener use ROCKS to explain the Continental Drift theory? _________________________________________________________________________________________________ 6. What causes the continents to move? _________________________________________________________________________________________________ 7. What is convection current? _________________________________________________________________________________________________ 8. What are the different types of plate boundaries? _________________________________________________________________________________________________ 9. What type of plate boundary formed the San Andreas fault? _________________________________________________________________________________________________ 10. Convergent - Oceanic-continental boundary forms_____________________________________________________ _________________________________________________________________________________________________ 11. Convergent – Continental -continental boundary forms_________________________________________________ _________________________________________________________________________________________________ 12. Convergent - Oceanic-oceanic boundary forms________________________________________________________ _________________________________________________________________________________________________ 13. How is Earth affected by divergent boundaries? _________________________________________________________________________________________________ _________________________________________________________________________________________________ 14. What kind of boundary is a rift valley? _________________________________________________________________________________________________ 15. Where do most earthquakes happen? _________________________________________________________________________________________________ 16.What type of landform is created when two continental plates collide? _________________________________________________________________________________________________ 17. Which landform is not formed from a convergent boundary? _________________________________________________________________________________________________ 18. The mid-ocean ridge in the Atlantic ocean is what type of plate boundary? _________________________________________________________________________________________________ 19. When earthquakes happen, what is the location directly above the focus? _________________________________________________________________________________________________ 20. Lithospheric ridge push causes plates to undergo_____________________________________________________ _________________________________________________________________________________________________ 21. What type of plate boundary causes the earthquakes in California? _________________________________________________________________________________________________ 22. How are volcanoes and islands formed from a hotspot? _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ Matching type: What type of plate boundary is responsible for the following landforms. A. convergent boundary B. divergent boundary C. Transform or Sliding boundary _______23. Island arc _______24. Pacific Ring of Fire _______25. Marianas trench _______26. Mountain range, Himalayas, Appalachian mountain _______27. Mid ocean ridge, Atlantic ocean, Rift valley in Africa _______28. San Andreas fault, California The map on the left shows the present locations of South America and Africa. Remains of the Mesosaurus, an extinct freshwater reptile, have been found in similarly aged bedrock formed from the lake sediments at locations X and Y. ____29. Which statement represents the most logical conclusion to draw from this evidence? A. Mesosaurus migrated across the ocean from location X to location Y. B. Mesosaurus came into existence on several widely separated continents. C. The continents of South America and Africa were connected when the Mesosaurus lived. D. The present climates at location X and Y are similar. Base your answer/s to the following question/s on the diagram on the left, which shows a cutaway view of Earth in which the interior layers are visible. The paths of the earthquake/seismic waves generated at point X are also shown. A, B, C, and D are locations of seismic stations on Earth’s surface, and Point E is located in Earth’s interior. ____30. Both P and S waves were received at seismic stations A and B , but only P waves were received at seismic stations C and D. Which statement best explains why this occurred? A. S waves are much weaker than P waves. B. S waves travel faster that P waves. C. The liquid outer core prevents the S waves from travelling to seismic stations C and D. D. The solid outer core prevents the S waves from travelling to seismic stations C and D. ____31. Location X is the ________ A. focus B. seismic station C. epicenter D. seismic wave ____ 32. Directly ______ the focus is the epicenter. A. below B. above ____ 33. Seismic waves ________ as they travel inside Earth. A. refracts (refraction) b. reflects ( reflection) ____ 34. Since P- waves were detected on seismic stations C and D, you can conclude that _____. A. P waves can only travel in liquids and not in solids. B P waves can only travel in solids and not in liquids. C. P waves can travel in solids and liquids. D. P waves are faster that S waves. R.Angat Key: 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. Convergent Convergent Convergent Convergent Divergent Transform C. The continents of South America and Africa were connected when the Mesosaurus lived. C. The liquid outer core prevents the S waves from travelling to seismic stations C and D. A. focus B. above A. refracts (refraction) C. P waves can travel in solids and liquids. https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/seismic-waves-tutorial/v/why-swaves-only-travel-in-solids By: R.E. Angat