8 th Grade Science Plate Tectonics and Topography Review

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1 8 th Grade Science Plate Tectonics and Topography Review

2 #1 Scientists believe that the land masses of Earth were once joined together as one supercontinent called. A: Australia B: Wegner C: Pangaea D: None of these

3 C. Pangaea

4 #2 The gradual drifting apart of land masses over time is caused by. A: Plate Tectonics B: Convergent Tectonics C: Divergent Tectonics D: Pangaea Tectonics

5 A. plate tectonics

6 #3 The folding and faulting of rocks at plate boundaries is caused by. A: Plate Tectonics B: Convergent Tectonics C: Divergent Tectonics D: Pangaea Tectonics

7 A. plate tectonics

8 #4 Which of the following support/s the concept of Plate Tectonics? Watch short Plate Tectonics video Continents fitting A: B: together like a puzzle. Matching fossils found in opposite sides of oceans. Matching mountains C: structures found in D: opposite sides of oceans. All of these

9 D. All of these

10 #5 The type of plate boundary that occurs where rocks on opposite sides of the fault move in opposite directions. Plate Boundaries A: Convergent B: Transform C: Divergent D: Continental

11 B. Transform

12 #6 The land forms shown are a result of a plate boundary. *The Himalaya s are increasing in elevation due to this. A: Convergent B: Divergent C: Transform D: None of these

13 A. Convergent

14 #7 What type of boundary is formed when two tectonic plates are pushed together? A: Transform B: Seafloor C: Divergent D: Convergent

15 D. Convergent

16 #8 When two plates converge and one plate is less dense than the other, occurs. A: Transformation B: Divergence C: Subduction D: None of these

17 C. Subduction

18 #9 When two plates converge as in this diagram, what land forms may result? A: Trench B: Continental Volcanoes C: Subduction Zone D: All of these

19 D. All of these

20 #10 What type of boundary is formed when two plates are moving apart? A: Transform B: Seafloor C: Divergent D: Convergent

21 C. Divergent

22 #11 What type of boundary is formed when two plates grind past each other? A: Transform B: Seafloor C: Divergent D: Convergent

23 A. Transform

24 #12 As a result of sea floor spreading, magma moves toward the, cools and forms new ocean floor and ridges. Watch short Sea-Floor Spreading video A: Mid-ocean ridge B: mantle C: Rift valley D: plates

25 A. Mid-ocean ridge

26 #13 An example of a Mid- Ocean Ridge is the. A: Maui volcanoes B: San Andreas Fault C: Mid-Atlantic Ridge D: None of these

27 B. Mid-Atlantic Ridge

28 #14 The observable hot spot activity in a midocean ridge is evidence that. A: crustal plates continue B: to move crustal plates are no longer moving C: weather patterns are D: repeating None of these

29 A. crustal plates continue to move

30 #15 The land forms in these two diagrams are formed by the movement of two plates. A: Divergent B: Convergent C: Subduction D: None of these

31 A. Divergent

32 X #16 Explain what is happening at X trying to use the underlined words. This is a divergent plate boundary. Convection currents of magma in the lithosphere located in the mantle cause magma to move up through the Mid-Atlantic Ridge. New rock covers old rock when the magma cools. The result is sea floor spreading. (Watch the video in #12 for a good explanation.)

33 #17 Explain what is happening at Z trying to use the underlined words. This is a convergent plate boundary. The more dense ocean floor crust pushes under the continental crust. This movement is called subduction. Volcanoes can result from this process. Z

34 #18 Subduction zones and volcanic islands are landform created by what boundary? A: Convergent B: Divergent C: Transform D: None of these

35 A. Convergent

36 #19 Faults and volcanoes found at tectonic. A: divergent boundaries B: plate boundaries C: transform boundaries D: None of these

37 B. plate boundaries

38 #20 This diagram is an example of what type of boundary? A: Divergent B: Convergent C: Transform D: None of these

39 A. Divergent

40 #21 What force caused the erosion of the Grand Canyon? A: Wind B: River C: Earthquake D: None of these

41 B. River

42 #22 What has caused the differenced shown in these three mountain ranges? A: The mining of rock. B: The types of rock they are made of. C: The weather they have D: been exposed to. None of these

43 C. The weather they have been exposed to.

44 #23 Lines connecting lines of equal elevation on a Topographic map A: Contour line B: Contour interval C: Interval line D: None of these

45 A. Contour line

46 #24 The distance between each contour line on a contour map A: Contour line B: Contour interval C: Interval line D: None of these

47 B. Contour interval

48 #25 What is the contour interval of this topographic map? A: 10 B: 20 C: 50 D: 100

49 B. 20

50 #26 Contour line that are far apart show. A: steep slopes B: gentle slopes C: no slops D: vertical slopes

51 B. gentle slopes (Gradually rising elevation)

52 #27 Contour line that are close together show. A: steep slopes (areas) B: gentle slopes (areas) C: no slops D: vertical slopes

53 A. steep slopes (areas)

54 Great Job!!!! Thank you for playing!

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