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WorksheetsEnvirothon Team Soils
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Any particle larger than ____________ is not considered soil but is called rock.
a)
1 mm
b)
2 mm
c)
3 mm
d)
4 mm
2.
Organic material makes up between 0 and ____ of most soils.
a)
9%
b)
12%
c)
18%
d)
21%
3.
The breakdown of rock into smaller pieces by physical means; common causes are ice, wind, water, gravity, plants, and animals
a)
Physical (Mechanical) Weathering
b)
Chemical Weathering
4.
Which of the following is NOT a major soil forming factor?
a)
Time, Topography
b)
Climate, Parent Material
c)
Organics (organisms)
d)
Deposition
5.
Which of the following is the largest particle in soil?
a)
sand
b)
silt
c)
humus
d)
clay
6.
Which ones does not represent soil texture:
a)
Silt
b)
Clay
c)
Humus
d)
Sand
7.
Which soil particles have the largest pore spaces between sediments?
a)
Clay
b)
Silt
c)
Sand
8.
If you have yellow or red soil, it is an indication of ______________ in your soil
a)
calcium
b)
water
c)
iron oxides
d)
sand
9.
Low AWHC is less than ___________ inches.
a)
2
b)
4
c)
6
d)
8
10.
When figuring AWHS fine texture is _________ AWHC/Inches/inch.
a)
.05
b)
.20
c)
.15
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