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Sixth Grade (Grade 6) Soil Questions

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Grade 6 Soil
Grade 6 Soil
Grade 6 Soil
Humus is made up of:
  1. sand and silt
  2. rocks
  3. water
  4. dead plants and animals
Grade 6 Soil
Which geologic process is most responsible for soil formation?
  1. erosion
  2. weathering
  3. cementation
  4. sedimentation
Grade 6 Soil
Why is humus an important part of soil?
  1. It contains nutrients which feed the plants
  2. It contains rocks which strengthen the soil
  3. It contains chemicals which fight disease
Grade 6 Soil
Which type of soil contains humus?
  1. Bedrock
  2. Subsoil
  3. Topsoil
  4. All soils contain humus
Grade 6 Soil
Soil is made of
  1. weathered rocks and minerals
  2. dead plants and animals
  3. air and water
  4. all answer choices
Grade 6 Soil
Which of the following best describes soil erosion?
  1. the breakdown of soil
  2. the improvement of soil
  3. the addition of soil
  4. the movement of soil by wind or water
Grade 6 Soil
What is in subsoil?
  1. Humus and clay
  2. Bedrock and humus
  3. Silt, sand and clay
  4. Topsoil and water
Grade 6 Soil
Soil is composed mainly of which ingredients?
  1. water, air, sand, mud, shells
  2. worms, minerals, shells, air, rock pieces
  3. air, rock pieces, decayed organic matter, water, minerals
  4. rock pieces, mud, decayed organic matter, minerals, worms
Grade 6 Soil
The texture of soil depends mainly on
  1. the types of plants that grow in the soil.
  2. the size of the particles in the soil.
  3. the color of the soil.
  4. the number of worms in the soil.
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