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Eighth Grade (Grade 8) Rocks Questions

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Grade 8 Rocks
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
What are they three types of sedimentary rocks?
  1. lava, magma, and volcano
  2. clastic, chemical, and organic
  3. gypsum, limestone, and shale
  4. contact, regional, and burial
Grade 8 Rocks
Which of the following makes A-Horizon ideal for growing plants?
  1. carbonic acid
  2. humus
  3. organic matter
  4. rocks
Grade 8 Rocks
Igneous rocks have the following characteristic
  1. They are hard because of the minerals in them
  2. They are strong because the mineral crystals are strong
  3. They are made of interlocking crystals
  4. All of the above
Grade 8 Rocks
Fossils are most likely to be found in
  1. Igneous rocks
  2. Metamorphic rocks
  3. Sedimentary rocks
  4. Any of the above
Grade 8 Rocks
Grade 8 Rocks
The solid layer of rock beneath the soil is called
  1. bottom rock
  2. solid rock
  3. top rock
  4. bedrock
Grade 8 Rocks
Humus is formed as a result of
  1. decomposition
  2. exfoliation
  3. oxidation
  4. weathering
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 Rocks
Which of the following statements would be true?
  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
What are the three types of rocks?
  1. Igneous, Sedimentary, Metamorphic
  2. Igneous, Hematite, Feldspar
  3. Mica, Sedimentary, Metamorphic
  4. Pyrite, Sedimentary, Igneous
Grade 8 Rocks
How is soil made?
  1. weathering
  2. infiltration
  3. transpiration
  4. erosion
Grade 8 Rocks
What type of rock is created when molten rock (magma) cools and hardens?
  1. Metamorphic
  2. Igneous
  3. Sedimentary
  4. All of the Above
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