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WorksheetsSoil Evidence
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Soil with a gritty texture is most likely heavily composed of:
a)
sand
b)
silt
c)
clay
d)
gravel
2.
Soil with a smooth texture is most likely heavily composed of:
a)
sand
b)
silt
c)
clay
d)
gravel
3.
What soil type would 60% clay and 40% silt be?
a)
clay
b)
silty clay
c)
clay loam
d)
silty clay loam
4.
What soil type would 30% clay and 40% silt, and 30% sand be?
a)
clay
b)
silty clay
c)
clay loam
d)
silty clay loam
5.
What soil type would 20% clay and 70% silt, and 10% sand be?
a)
sandy loam
b)
silty clay
c)
clay loam
d)
silt loam
6.
What is the most common mineral found in sand?
a)
quartz
b)
mica
c)
feldspar
d)
iron
7.
Which of the following is NOT a main grain size?
a)
sand
b)
silt
c)
soil
d)
clay
8.
Which horizon is made up of partially weathered rocks?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
9.
In which horizon is most of the HUMUS?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
10.
Topsoil which contains the HUMUS is the soil layer best for growing plants.
a)
True
b)
False
11.
Soil layers are called horizons because...
a)
The layers are all different
b)
The layers are vertical
c)
The layers are horizontal
d)
The layers are above one another
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