Download Soils Quiz Show Powerpoint

Ga Ag Ed Curriculum Office, July 2002
Adapted for Colorado Soils Curriculum 2006
Let’s Get
Physical
Expanding
Horizons
Soil Color
It’s How
You Feel
General
Soil
1
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1
1
2
2
2
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3
3
3
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4
4
4
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5
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Phy. Properties for 1
Question: The _____ of the
soil refers to the size of the
individual soil particles.
Check Your Answer
Phy. Properties for 1
Answer:
texture
Back to the Game Board
Phy. Properties for 2
Question: Positively charged
nutrients in the soil are called
________.
Check Your Answer
Phy. Properties for 2
Answer: cations
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Phy. Properties for 3
Question: What is slope?
Check Your Answer
Phy. Properties for 3
Answer: reflects the change
in elevation of the soil surface
over 100’ horizontally
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Phy. Properties for 4
Question: What determines
the acid level of the soil?
Check Your Answer
Phy. Properties for 4
Answer: pH
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Phy. Properties for 5
Question: Groups of clinging
soil particles are called ______.
Check Your Answer
Phy. Properties for 5
Answer: peds
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Soil Horizons for 1
Question: Soil from rock or
from organic material will
form in layers that lie ____ to
the surface of earth.
Check Your Answer
Soil Horizons for 1
Answer: parallel
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Soil Horizons for 2
Question: If the upper
horizon is classified as an
“Ap” Horizon – what does that
mean?
Check Your Answer
Soil Horizons for 2
Answer: It is an A horizon
that has been “plowed” or
disturbed.
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Soil Horizons for 3
Question: The “A” horizon is
generally _____ than the
horizons below and may be
from a few inches to several
feet thick.
Check Your Answer
Soil Horizons for 3
Answer: darker
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Soil Horizons for 4
Question: The bedrock upon
which the other soil horizons
rest is called the __ horizon.
Check Your Answer
Soil Horizons for 4
Answer: “R”
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Soil Horizons for 5
Question: This layer is the
material from which soil
originated.
Check Your Answer
Soil Horizons for 5
Answer: “C” Horizon
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Soil Color for 1
Question: What is one factor
that gives soil color?
Check Your Answer
Soil Color for 1
Answer: One of:
1.Organic matter
2.Weathered mineral matter
3.Iron present
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Soil Color for 2
Question: What are the basic
color classifications of soils?
Check Your Answer
Soil Color for 2
Answer:
1.Light
2.Medium
3.Dark
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Soil Color for 3
Question: What standard chart
is used to determine soil color
in the field?
Check Your Answer
Soil Color for 3
Answer: Munsell Color Chart
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Soil Color for 4
Question: What is the
difference between Hue,
Value, and Chroma?
Check Your Answer
Soil Color for 4
Answer:
Hue: dominant spectral (red, yellow,
blue, green)
Value: relative blackness or whitness
Chroma: Purity of “color”
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Soil Color for 5
Question: What are mottles in
the soil?
Check Your Answer
Soil Color for 5
Answer: spots of colors in
the soil – usually indicates
poor aeration
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Soil – Texture for 1
Question: What is the
smallest soil texture?
Check Your Answer
Soil - Texture for 1
Answer: Clay
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Soil - Texture for 2
Question: What is the largest
soil particle type?
Check Your Answer
Soil - Texture for 2
Answer: sand
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Soil - Texture for 3
Question: How can you test
soil texture?
Check Your Answer
Soil - Texture for 3
Answer:
(a) Ribboning method
(b) using soil sieves to measure
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Soil - Texture for 4
Question: What are the 3 soil
types?
Check Your Answer
Soil - Texture for 4
Answer: 1) Sand
2) Silt
3) Clay
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Soil - Texture for 5
Question: What does loam
mean?
Check Your Answer
Soil - Texture for 5
Answer: A mixture of sand,
silt, clay
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Soil for 1
Question: _______ is the
most precious natural
resource we have.
Check Your Answer
Soil for 1
Answer: soil
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Soil for 2
Question: _____ are soils
derived from volcanic
sources.
Check Your Answer
Soil for 2
Answer: andisols
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Soil for 3
Question: The most common
soil organisms are _________.
Check Your Answer
Soil for 3
Answer: nematodes
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Soil for 4
Question: _____ are soils that
settle to the bottom of rivers
and streams when the water is
moving rapidly.
Check Your Answer
Soil for 4
Answer: alluvial
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Soil for 5
Question: The broadest soil
grouping is called ________.
Check Your Answer
Soil for 5
Answer: soil order
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