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Eighth Grade (Grade 8) Geology Questions

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Grade 8 Minerals
Quartz, feldspar, and Mica are silicate minerals. Silicate minerals contain atoms of silicon and oxygen and often other elements bonded together. Which of the following is TRUE about silicate minerals?
  1. They are pure elements.
  2. They are made up of compounds.
  3. They melt at very low temperatures.
  4. They are made up of only one kind of atom.
Grade 8 Minerals
Grade 8 Rocks
Made of sedimentary rock formed from the remains of dead sea animals
  1. lava
  2. limestone
  3. ridge plateau
  4. loess deposits
Grade 8 Soil
Which fossil layer is the youngest?
  1. Layer 1
  2. Layer 2
  3. Layer 3
  4. Layer 4
Grade 8 Rocks
What geologic process can change granite (igneous rock) into gneiss (metamorphic rock)?
  1. Compacting and cementing
  2. Cooling
  3. Heat and pressure
  4. Melting
Grade 8 Tectonics
Grade 8 Rocks
Which cycle is primarily represented by the diagram?
Subduction Zone
  1. life cycle
  2. rock cycle
  3. water cycle
  4. carbon cycle
Grade 8 Earth's Layers
Earthquakes, volcanoes, and other natural disasters occur because of the movement of the oceanic and continental plates. What causes these plates to move?
  1. the flow of the liquid metals in the outer core
  2. the flow of the hot material in the middle mantle that causes convection currents
  3. the breaking up of the crust
  4. the movement of the hot, solid metals in the inner core
Grade 8 Tectonics
What evidence is there for continental drift?
  1. similar fossils found on different continents
  2. similar rock structures found on different continents
  3. both of the above
  4. none of the above
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 Geomorphology
Which of the following best defines deposition?
  1. Sediment is dropped by the agents of erosion
  2. Dry sediment mixes with heavy rains
  3. Mass movement wherein rock and soil moves down along the slope
  4. Weak layers of rock slide down a slope as a single unit
Grade 8 Historical Geology
Grade 8 Volcanoes
What is expelled from volcanoes?
  1. lava
  2. ash
  3. rocks
  4. all the above
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