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WorksheetsSoil
Total questions: 15
Worksheet time: 30mins
Name
Class
Date
1.
Soil is made of
a)
weathered rocks and minerals
b)
dead plants and animals
c)
air and water
d)
all of the above
2.
Which soil horizon is contains decomposed plants and animals?
a)
A Horizon
b)
B Horizon
c)
C Horizon
d)
O Horizon
3.
Soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called
a)
Humification
b)
Weathering
c)
Soil erosion
d)
None of the above
4.
What is the common name for Horizon A?
a)
bedrock
b)
topsoil
c)
parent material
d)
subsoil
5.
soil is important for
a)
agriculture
b)
food
c)
plants
d)
All of the above
6.
This type of soil is sticky when wet and hard when dry.
a)
clay
b)
silt
c)
sand
d)
gravel
7.
This type of soil is best for plant growth.
a)
rock
b)
sand
c)
loam
d)
clay
8.
Loam is a mixture of clay, silt, and sand.
a)
True
b)
False
9.
It is important for soil to retain water to
a)
withstand weathering
b)
erode more slowly
c)
help plants to grow
d)
keep it from being dry
10.
Which layer of soil has the BIGGEST pieces of rock in it?
a)
topsoil
b)
subsoil
c)
bedrock
d)
midsoil
11.
What is the layer of soil just below the topsoil?
a)
soil
b)
subsoil
c)
topsoil
d)
terrace farming
12.
Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?
a)
clay
b)
sand
c)
silt
d)
humus
13.
True or False: Sand has less humus than other soils.
a)
True
b)
False
14.
Which is the correct order of weathered rocks from smallest to largest?
a)
sand, clay, silt, gravel
b)
clay, silt, sand, gravel
c)
gravel, sand, silt, clay
d)
clay, sand, silt, gravel
15.
Which particle of soil is the smallest?
a)
sand
b)
silt
c)
clay
d)
Humus
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