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WorksheetsSoil Structure and Water
Total questions: 14
Worksheet time: 17mins
Definition of Soil Structure:
Ability of a soil to retain water for use by plants
Ease with which air and water may pass through the soil
Grouping or arrangement of soil particles
Fineness or coarseness of a soil (particle size)
What percent of soil is pore space? (air and water)
5%
25%
50%
55%
The topsoil; it provides the best environment for the growth of plant roots, micro-organisms, and other life.
O
A
E
B
Weathering is:
the breaking down of wood through contact with termites.
the breaking down of rocks, soil, and minerals as well as wood through contact with wind, water, or changes in temperature.
the breaking down of soil and minerals through contact with tsunamis and earthquakes.
the breaking down of minerals through contact with other invasive minerals.
Capillarity occurs due to
cohesion and adhesion
gravitational movement
hygroscopic adhesion
Gravitational flow occurs more rapidly in
fine particle soils
coarse particle soil
all soils
Gravitational water moves more rapidly due to
small pore space
small particle size
large pore space
As soil particle size decreases, the water holding capacity of the soil
decreases
increases
stays the same
What is the measurement of water in soil that is available for plants to use?
10
Pore Space
Perc Test
Water Holding Capacity
What is the portion of soil that holds either air or water?
Mineral matter
Pore space
Organic matter
Textural class
Which of the following is NOT a reason plants use soil?
anchorage
nutrients
water
gluteus maximus
oxygen
What type of soil structure is represented in this picture?
sub angular blocky
granular
prismatic
platy
What type of soil structure is represented in this picture?
sub angular blocky
granular
prismatic
platy
What type of soil structure is represented in this picture?
sub angular blocky
granular
prismatic
platy
