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Eighth Grade (Grade 8) Tectonics Questions

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Grade 8 Tectonics
What is the fastest seismic wave?
  1. p-wave
  2. s-wave
  3. surface waves
  4. all the above
Grade 8 Tectonics
In the early 1900s, scientist Alfred Wegener hypothesized that the continents were once one landmass that moved apart over time. The map supports which piece of evidence for Wegener's idea?
Map of the Atlantic
  1. the shapes of the continental coastlines roughly fit together
  2. distribution of coal deposits matches across different continents
  3. parts of different continents share similar fossils and similar rocks
  4. the age of oceanic crust is younger in the middle of the ocean and older at continental boundaries
Grade 8 Tectonics
Which scientific theory is best represented by the diagram?
Fault - Thrust
  1. Big Bang
  2. Evolution
  3. Plate Tectonics
  4. Continental Drift
Grade 8 Tectonics
What kind of plate boundary occurs where two plates grind past each other without producing lithosphere?
  1. Convergent boundary
  2. Divergent boundary
  3. Transform fault boundary
  4. Seafloor spreading boundary
Grade 8 Tectonics
Grade 8 Tectonics
Grade 8 Tectonics
All of the energy that drives the rock cycle comes from
  1. the wind.
  2. Earth's interior.
  3. the breakdown of organic matter.
  4. the movement of water over the Earth's surface.
Grade 8 Tectonics
In diagram shown, what does the letter G best represent?
Subduction Zone
  1. oceanic crust
  2. continental crust
  3. mantle conduction
  4. mantle convection
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