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WorksheetsQUIZsoil
Total questions: 20
Worksheet time: 12mins
Why is sandy soil not the best choice for growing plants?
The particles in sand are packed too tightly.
The particles in sand are packed too loosely.
Water cannot drain through sand and plants rot.
Sand has zero nutrients and minerals.
Soil is made up of particles that are spaced tightly together or far apart. What are these particles?
Roots, stems, and leaves
Tiny pieces of rock, minerals, and nutrients
minerals, roots, and leaves
pieces of rock and organic matter
If you wanted to learn more about the soil composition in a particular area, what would you need to do?
Dig up a large enough soil profile ranging from the surface to the underlying rock.
Identify the soil horizon by viewing layer A that's closest to the surface.
Dig up a small sample known for further testing.
Identify the soil classification by viewing the plants and trees growing in the area.
Which of the following terms is used to describe a layer of the soil profile?
Soil horizon
Silt layer
Soil aggregate
Granulation
Type of soil that can become as hard as stone when it dries out.
Clay
Silt
Sand
Loam
What are the three main layers in a soil profile?
Minerals, humus, and air
Organic matter, parent material, bedrock
Topsoil, subsoil, and parent material
Clay, Silt, Sand
Soil is formed by the breaking up of rocks into tiny pieces.
True
False
What horizon is characterized by humus mixed with mineral and rock fragments?
O
A
B
C
What horizon is characterized by recognizable pieces of bed rock in various stages of weathering
O
A
B
C
Which layer in a soil profile would be most affected by weathering & erosion
O
A
B
C
Which of the following is NOT the type of soil?
Sand
Silt
Clay
Mud
It is a mixture of clay, sand, and silt
Loam
Humus
Organic matter
Mud
Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What is most likely the composition of the topsoil?
Sand
Silt
Clay
Loam
You dig a small hole in the soil and the next day it rains. The hole fills with water, but does not empty even after several days of dry weather. What is the soil mostly made of?
Clay
Silt
Sand
Loam
Based on the glass jar soil test, which soil is the heaviest and fell to the bottom of the container?
Sand
Silt
Clay
Loam
How can the type of bedrock under soil affect the characteristics of the soil?
by preventing soil erosion
by contributing small rock particles to the soil
by absorbing excessive rainwater
by providing surface area for nutrient accumulation
Decayed organic material in soil is called______.
Humus
Litter
Debris
Minerals
Look at the following data table and label each soil horizon using the descriptions.
Beaker 1 = Bedrock Beaker 2 = Horizon C (parent material) Beaker 3 = Horizon B (subsoil) Beaker 4 = Horizon A (topsoil)
Beaker 1 = Horizon C (parent material) Beaker 2 = Horizon B (subsoil) Beaker 3 = Horizon A (topsoil) Beaker 4 = Bedrock
Beaker 1 = Bedrock Beaker 2 = Horizon A (topsoil) Beaker 3 = Horizon B (subsoil) Beaker 4 = Horizon C (parent material)
Beaker 1 = Bedrock Beaker 2 = Horizon B (subsoil) Beaker 3 = Horizon A (topsoil) Beaker 4 = Horizon C (parent material)
If your soil sample from your garden has 25% sand, 40% silt and 35%. What is the type of the soil?
clay loam
sandy clay
clay
loam
If your soil sample has 35% sand,40% silt and 25% clay, identify the soil type using the soil texture triangle above
clay loam
silt loam
silt
loam
