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Eighth Grade (Grade 8) Geology Questions

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Grade 8 Tectonics
Which of the following does evidence indicate is an explanation for plate motion?
  1. convection currents
  2. rift valleys
  3. weather patterns
  4. earthquakes
Grade 8 Tectonics
What was Wegener's idea that the continents slowly moved over Earth's surface?
  1. Pangaea
  2. Continental drift
  3. Plate tectonics
  4. Fossils
Grade 8 Rocks
Which is a nonfoliated metamorphic rock?
  1. limestone
  2. marble
  3. erosion
  4. slate
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
Grade 8 Volcanoes
Where do most volcanoes occur?
  1. divergent boundary
  2. transform boundary
  3. convergent boundary
Grade 8 Earth's Layers
The                 is a rigid layer of earth about 100 km thick.
  1. asthenosphere
  2. lithosphere
  3. mantle
  4. core
Grade 8 Tectonics
Tectonic plates move approximately this far each year.
  1. one foot
  2. one inch
  3. one yard
Grade 8 Soil
Which lists the soil particles from largest to smallest?
  1. sand, gravel, clay, silt
  2. gravel, silt, sand, clay
  3. gravel, sand, silt, clay
  4. gravel, clay, sand, silt
Grade 8 Rocks
These types of rocks are formed from magma.
  1. igneous
  2. sedimentary
  3. metamorphic
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