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Name: ______________________ Class: _________________ Date: _________ Chapter 7 Review Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Tectonic plates consist of a. continental crust. b. oceanic crust. c. both continental and oceanic crust. d. mesosphere. ____ 2. Wegener thought that all the continents were once together in one large continent called a. Gondwana. c. Eurasia. b. Laurasia. d. Pangaea. ____ 3. New oceanic lithosphere forms as a result of a. sea-floor spreading. c. reverse polarity. b. normal polarity. d. continental drift. ____ 4. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ____ 5. The global positioning system can map the rate of tectonic plate movement using a. radio waves. c. visual markers. b. lasers. d. motion detectors. ____ 6. A possible result of plates moving along a transform boundary is a. oceans. c. earthquakes. b. convection. d. sea-floor spreading. ____ 7. What is the outermost layer of the Earth called? a. core c. asthenosphere b. lithosphere d. mesosphere ____ 8. What type of fault usually occurs because of tension? a. folded c. strike-slip b. normal d. reverse ____ 9. What type of fault usually occurs because of compression? a. folded c. strike-slip b. normal d. reverse ____ 10. In a reverse fault, where does the hanging wall move relative to the footwall? a. upward c. horizontally b. downward d. stays the same ____ 11. What is the area where two tectonic plates meet called? a. a collision c. a boundary b. a mid-ocean ridge d. a rift zone 1 ID: A Name: ______________________ ID: A ____ 12. What type of boundary is formed when plates separate? a. convergent c. divergent b. horizontal d. transform ____ 13. What type of boundary is formed when plates slide past each other? a. convergent c. divergent b. horizontal d. transform ____ 14. Which of these did NOT provide evidence for continental drift? a. sea-floor spreading c. the fossil record b. oceanic plate theory d. magnetic reversals ____ 15. According to the continental drift theory, a single, huge continent once existed called a. Pangaea. c. Panthalassa. b. Wegener. d. Eurasia. ____ 16. Where does sea-floor spreading take place? a. convergent boundaries c. oceanic volcanoes b. transform boundaries d. mid-ocean ridges ____ 17. The mantle is denser than the crust because it contains more a. iron. c. silicon. b. magnesium. d. oxygen. ____ 18. The core consists mainly of a. iron. b. magnesium. c. silicon. d. oxygen. ____ 19. Seismic waves travel through Earth’s layers at different speeds depending on the a. density. c. area. b. mass. d. shape. ____ 20. Mountains formed by magma that reaches the Earth’s surface are a. slip-strike. c. fault-block. b. folded. d. volcanic. ____ 21. The fact that similar fossils are found on both sides of the ocean is evidence of a. global positioning. c. continental drift. b. magnetic reversal. d. oceanic drifts. ____ 22. Sets of deep cracks that form between two tectonic plates that are pulling away from each other are known as a. mid-ocean ridges. c. clefts. b. troughs. d. rift zones. ____ 23. What does the theory of continental drift explain? a. the layers of the Earth c. how volcanoes formed b. why continents move d. how oceans formed ____ 24. What happens at mid-ocean ridges? a. strike-slip faults b. magnetic reversal c. sea-floor spreading d. earthquakes 2 Name: ______________________ ID: A ____ 25. Which of the following is associated with transform boundaries? a. slab pull c. sea-floor spreading b. magnetic reversal d. earthquakes ____ 26. What do scientists use the global positioning system for? a. to measure tectonic plate motion b. to measure the Earth’s thickness c. to make images of tectonic plates d. to measure the distances of seismic wave ____ 27. What is tension? a. stress squeezing an object b. stress pulling an object c. stress breaking an object d. stress releasing an object ____ 28. What is the idea that all continents were part of one big landmass? a. oceanic drift c. oceanic theory b. continental drift d. continental theory ____ 29. What is it called when Earth’s magnetic poles change places? a. a strike-slip fault c. sea-floor spreading b. magnetic reversal d. continental drift ____ 30. What can tectonic plates form when they converge? a. mid-ocean ridges c. sea floor b. mountains d. asthenosphere ____ 31. What is the order of the layers of the Earth from the surface to the center? a. asthenosphere, lithosphere, mesosphere, outer core, inner core b. lithosphere, asthenosphere, mesosphere, outer core, inner core c. mesosphere, outer core, inner core, lithosphere, asthenosphere d. lithosphere, asthenosphere, mesosphere, inner core, outer core ____ 32. Earthquakes produce a. seismographs. b. maps. c. seismic waves. d. volcanoes. ____ 33. The giant continent that was composed of all the land on Earth was called a. Pangaea. c. Gondwana. b. Panthalassa. d. Laurasia. ____ 34. The southern portion of Pangaea that broke apart about 180 million years ago is known as a. Pangaea. c. Gondwana. b. Panthalassa. d. Laurasia. ____ 35. Magnetic reversals are preserved in a. compass needles. b. magnetic minerals. c. all minerals. d. seismic waves. 36. Magnetic reversals have helped to support a. the theory of Pangaea. b. the age of the Earth. c. sea-floor spreading. d. the theory of Gondwana. ____ 3 Name: ______________________ ID: A ____ 37. Continental-oceanic collisions can also be called a. continental-continental collisions. c. divergent boundaries. b. oceanic-oceanic collisions. d. subduction zones. ____ 38. Changes in density in the asthenosphere are caused by a. thermal energy. c. ridge push. b. slab pull. d. seismic waves. ____ 39. The Global Positioning System depends on a. gravity. c. satellites. b. the Internet. d. visual observations. ____ 40. The amount of force per unit area on a given material is a. stress. c. uplift. b. deformation. d. subsidence. Completion Complete each sentence or statement. Use the terms from the following list to complete the sentences below. slab pull push ridge convection 41. Crust moves sideways because of ____________________. Use the terms from the following list to complete the sentences below. folded mountains volcanic mountains fault-block mountains 42. The Alps and Himalayas are ____________________. Use the terms from the following list to complete the sentences below. inner core asthenosphere plate tectonics sea-floor spreading subsidence outer core continental drift mesosphere uplift 43. The mantle mainly consists of a dense layer called the ____________________. 4 Name: ______________________ ID: A Use the terms from the following list to complete the sentences below. normal sea-floor spreading divergent reverse magnetic reversals convergent 44. Tectonic plates move together to form a ____________________ boundary. 45. New crust in the ocean is a sign of ____________________. Matching Match each item with the correct statement below. a. sea-floor spreading d. magnetic minerals b. continental drift e. fossils c. magnetic reversal ____ ____ ____ ____ ____ 46. 47. 48. 49. 50. hypothesis that states that the continents were once one large mass that broke apart process that takes place at mid-ocean ridges part of molten rock at mid-ocean ridges process of Earth’s magnetic poles changing places items that provide evidence that the continents were once closer together 5