Plate Tectonics

1. Plate Tectonics Review

2. 1) As depth under Earth’s crust increases, what happens to the temperature and pressure of Earth’s layers? a. They both decrease. b. They both stay the same. c. They both increase. d. Temperature increases and pressure decreases.

3. 1) As depth under Earth’s crust increases, what happens to the temperature and pressure of Earth’s layers? a. They both decrease. b. They both stay the same. c. They both increase. d. Temperature increases and pressure decreases.

4. 2) The longest chain of mountains in the world is known as the __. a. Oceanic Range b. Mid-Ocean Ridge c. Ring of Fire d. The Pacific Ridge

5. 2) The longest chain of mountains in the world is known as the __. a. Oceanic Range b. Mid-Ocean Ridge c. Ring of Fire d. The Pacific Ridge

6. 3) What has the greatest effect on plate movement? a. density and convection b. size and convection c. density and composition d. temperature and composition

7. 3) What has the greatest effect on plate movement? a. density and convection b. size and convection c. density and composition d. temperature and composition

8. 4) The deeper into the Earth you travel, the __ the material becomes. a. more porous b. less porous c. less dense d. more dense

9. 4) The deeper into the Earth you travel, the __ the material becomes. a. more porous b. less porous c. less dense d. more dense

10. 5) The deepest layer of the Earth that humans have drilled to is the __. a. outer core b. asthenosphere c. mantle d. crust

11. 5) The deepest layer of the Earth that humans have drilled to is the __. a. outer core b. asthenosphere c. mantle d. crust

12. 6) In which of Earth’s layers are convection currents believed to be flowing? a. lithosphere b. asthenosphere c. outer core d. oceanic crust

13. 6) In which of Earth’s layers are convection currents believed to be flowing? a. lithosphere b. asthenosphere c. outer core d. oceanic crust

14. 7) The process that continually adds crust to the ocean floor is called __. a. sea-floor spreading b. continental drift c. trench making d. subduction

15. 7) The process that continually adds crust to the ocean floor is called __. a. sea-floor spreading b. continental drift c. trench making d. subduction

16. 8) Which statement about Pangaea is TRUE? (HINT: landmass created from continents being joined together) a. Pangaea was made of oceanic crust only. b. Pangaea was made of all the Earth’s tectonic plates. c. Pangaea contained continental crust only. d. Pangaea contained both continental and oceanic crust.

17. 8) Which statement about Pangaea is TRUE? (HINT: landmass created from continents being joined together) a. Pangaea was made of oceanic crust only. b. Pangaea was made of all the Earth’s tectonic plates. c. Pangaea contained continental crust only. d. Pangaea contained both continental and oceanic crust.

20. 9) What have scientists used to gain information about Earth’s interior? a. satellite images from GPS b. seismic waves from earthquakes c. fossil evidence in the fossil record d. lava pillows found at the mid-ocean ridge

21. 9) What have scientists used to gain information about Earth’s interior? a. satellite images from GPS b. seismic waves from earthquakes c. fossil evidence in the fossil record d. lava pillows found at the mid-ocean ridge

22. 10) What landform is most likely to form when two continental plates collide? a. the rift valley b. a deep ocean trench c. the mid-ocean ridge d. a mountain range

23. 10) What landform is most likely to form when two continental plates collide? a. the rift valley b. a deep ocean trench c. the mid-ocean ridge d. a mountain range

25. 11) Name the layers of the Earth from hottest to coolest. a. crust, mantle, outer core, inner core b. inner core, mantle, crust, outer core c. inner core, outer core, mantle, crust d. crust, inner core, outer core, mantle

26. 11) Name the layers of the Earth from hottest to coolest. a. crust, mantle, outer core, inner core b. inner core, mantle, crust, outer core c. inner core, outer core, mantle, crust d. crust, inner core, outer core, mantle

28. 12) Which is an accurate description of Earth’s inner core? a. a dense ball of solid metal b. a layer of molten rock c. a fluid sphere of liquid metal d. a thin layer of solid rock

29. 12) Which is an accurate description of Earth’s inner core? a. a dense ball of solid metal b. a layer of molten rock c. a fluid sphere of liquid metal d. a thin layer of solid rock

30. 13) What stress force creates a divergent boundary? (HINT: ) a. deformation b. compression c. shearing d. tension

31. 13) What stress force creates a divergent boundary? (HINT: ) a. deformation b. compression c. shearing d. tension

33. 14) When heat is transferred through a fluid, __occurs. a. conduction b. convection c. revolution d. radiation

34. 14) When heat is transferred through a fluid, __occurs. a. conduction b. convection c. revolution d. radiation

35. 15) In the picture below, the ocean floor is sinking through a deep ocean trench and back into the mantle. What is this process called? a. subduction b. convection c. reduction d. sinkalation

36. 15) In the picture below, the ocean floor is sinking through a deep ocean trench and back into the mantle. What is this process called? a. subduction b. convection c. reduction d. sinkalation

37. 16) What is the main type of rock that makes up the oceanic crust? a. obsidian b. granite c. basalt d. pumice

38. 16) What is the main type of rock that makes up the oceanic crust? a. obsidian b. granite c. basalt ocean = SALT water d. pumice

39. 17) What happens between oceanic crust and continental crust at a subduction zone? a. the less dense oceanic crust rises above the more dense continental crust b. the equally dense oceanic and continental crusts collide and form mountains c. the equally dense oceanic and continental crusts both sink and form magma d. the more dense oceanic crust sinks under the less dense continental crust

40. 17) What happens between oceanic crust and continental crust at a subduction zone? a. the less dense oceanic crust rises above the more dense continental crust b. the equally dense oceanic and continental crusts collide and form mountains c. the equally dense oceanic and continental crusts both sink and form magma d. the more dense oceanic crust sinks under the less dense continental crust

41. Oceanic vs. Continental

42. 18) Most geologists believe that the movement of the Earth’s plates is caused by __in the __. a. gravity, mantle b. subduction, deep ocean trenches c. convection currents, asthenosphere d. magnetic fields, inner core

43. 18) Most geologists believe that the movement of the Earth’s plates is caused by __in the __. a. gravity, mantle b. subduction, deep ocean trenches c. convection currents, asthenosphere d. magnetic fields, inner core

44. 19) What theory states that lithospheric plates are in constant slow motion driven by convection currents in the asthenosphere? a. Continental drift b. Plate tectonics c. Law of Superposition d. Newton’s laws of motion

45. 19) What theory states that lithospheric plates are in constant slow motion driven by convection currents in the asthenosphere? a. Continental drift b. Plate tectonics c. Law of Superposition d. Newton’s laws of motion

46. 19) What theory states that lithospheric plates are in constant slow motion driven by convection currents in the asthenosphere? a. Continental drift b. Plate tectonics c. Law of Superposition d. Newton’s laws of motion

47. 20) What type of boundary exists between the North American Plate and the Pacific Plate? a. convergent boundary b. divergent boundary c. transform boundary d. fault boundary

48. 20) What type of boundary exists between the North American Plate and the Pacific Plate? a. convergent boundary b. divergent boundary c. transform boundary d. fault boundary

49. 21) What type of stress causes plates to converge (collide)? a. tension b. compression c. shearing d. tearing

50. 21) What type of stress causes plates to converge (collide)? a. tension b. compression c. shearing d. tearing