8 th Grade Science Plate Tectonics and Topography Review

A:B: AustraliaWegner C:D: PangaeaNone of these #1 Scientists believe that the land masses of Earth were once joined together as one supercontinent called_______.

C. Pangaea

A:B: Plate TectonicsConvergent Tectonics C:D: Divergent TectonicsPangaea Tectonics #2 The gradual drifting apart of land masses over time is caused by _____ ________.

A. plate tectonics

A:B: Plate TectonicsConvergent Tectonics C:D: Divergent TectonicsPangaea Tectonics #3 The folding and faulting of rocks at plate boundaries is caused by ______ _______.

A. plate tectonics

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

D. All of these

A:B: ConvergentTransform C:D: DivergentContinental #5 The type of plate boundary that occurs where rocks on opposite sides of the fault move in opposite directions. Plate Boundaries

B. Transform

A:B: ConvergentDivergent C:D: TransformNone of these #6 The land forms shown are a result of a _____ plate boundary. *The Himalaya’s are increasing in elevation due to this.

A. Convergent

A:B: TransformSeafloor C:D: DivergentConvergent # 7 What type of boundary is formed when two tectonic plates are pushed together?

D. Convergent

A:B: TransformationDivergence C:D: SubductionNone of these #8 When two plates converge and one plate is less dense than the other, __________ occurs.

C. Subduction

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

D. All of these

A:B: TransformSeafloor C:D: DivergentConvergent #10 What type of boundary is formed when two plates are moving apart?

C. Divergent

A:B: TransformSeafloor C:D: DivergentConvergent #11 What type of boundary is formed when two plates grind past each other?

A. Transform

A:B: Mid-ocean ridgemantle C:D: Rift valleyplates #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

A:B: Maui volcanoesSan Andreas Fault C:D: Mid-Atlantic RidgeNone of these #13 An example of a Mid- Ocean Ridge is the _____ _______ ______.

B. Mid-Atlantic Ridge

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

A. crustal plates continue to move

A:B: Divergent Convergent C:D: SubductionNone of these #15 The land forms in these two diagrams are formed by the movement of two ________ plates.

A. Divergent

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.) X #16

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 #17

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

A. Convergent

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

B. plate boundaries

A:B: DivergentConvergent C:D: TransformNone of these #20 This diagram is an example of what type of boundary?

A. Divergent

A:B: WindRiver C:D: EarthquakeNone of these #21 What force caused the erosion of the Grand Canyon?

B. River

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

C. The weather they have been exposed to.

A:B: Contour lineContour interval C:D: Interval lineNone of these #23 Lines connecting lines of equal elevation on a Topographic map

A. Contour line

A:B: Contour lineContour interval C:D: Interval lineNone of these #24 The distance between each contour line on a contour map

B. Contour interval

A:B: 1020 C:D: #25 What is the contour interval of this topographic map?

B. 20

A:B: steep slopesgentle slopes C:D: no slopsvertical slopes #26 Contour line that are far apart show ____________.

B. gentle slopes (Gradually rising elevation)

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

A. steep slopes (areas)

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