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Eighth Grade (Grade 8) Geology Questions

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Grade 8 Earth's Layers
Which layer creates the Earth's magnetic field?
  1. lithosphere
  2. mesophere
  3. outer core
  4. inner core
Grade 8 Earth's Layers
What do you call the portion of the mantle just below the lithosphere?
  1. oceanic crust
  2. asthenosphere
  3. plate tectonics
Grade 8 Historical Geology
Geological time periods are divided by                                                .
  1. the appearance and disappearance of life forms.
  2. an equal number of years.
  3. the amount of sediment.
  4. solar changes.
Grade 8 Rocks
What processes can occur in the rock cycle?
  1. heat and pressure
  2. cooling and solidification
  3. weathering and erosion
  4. all of the above
Grade 8 Tectonics
This map is most useful for identifying                     .
Tectonic Plates No Labels
  1. biomes
  2. continents
  3. tectonic plates
  4. global wind patterns
Grade 8 Geomorphology
Water, oxygen, carbon dioxide, and acids are significant agents of                      .
  1. chemical weathering
  2. abrasion
  3. mechanical weathering
  4. erosion
Grade 8 Soil
Which of the following statements is TRUE about soils?
  1. The deeper into the soil layers, the more rock appears.
  2. The deeper into the soil layers, the more organic matter.
  3. The more shallow the layer, the greater amount of rock appears.
  4. The deeper the soil layer, the more nutrients.
Grade 8 Rocks
Fossils are found mainly in which type of rocks?
  1. igneous
  2. sedimentary
  3. metamorphic
Grade 8 Earth's Layers
Which one of the following is not a layer of Earth?
  1. Core
  2. Crust
  3. Magma
  4. Mantle
Grade 8 Earth's Layers
Earth's thickest layer is the                .
  1. crust
  2. mantle
  3. core
  4. lithosphere
Grade 8 Geomorphology
What do you call the process of breaking down of rock and other substances on Earth's surface?
  1. weathering
  2. erosion
  3. deposition
  4. precipitation
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 Volcanoes
How are volcanoes formed?
  1. magma pushes up through Earth's crust
  2. shock waves from movements in Earth's crust
  3. spin of Earth
  4. L-waves traveling through Earth
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