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WorksheetsSoil Reteach
Total questions: 12
Worksheet time: 9mins
Name
Class
Date
1.
What generic soil type would you most likely find in dry, temperate climates that contain a large amount of calcite, and are common in Texas.
a)
pedalfer
b)
pedocal
c)
laterite
d)
aluminate
2.
The top, leaf litter, humus layer of soil is called the ___ horizon.
a)
O
b)
A
c)
B
d)
C
3.
Topsoil is also known as the ___ horizon.
a)
O
b)
A
c)
B
d)
C
4.
Subsoil is know as the ___ horizon.
a)
O
b)
A
c)
B
d)
C
5.
Plants need ___ to make chlorophyll, provide for rapid growth, and produce healthy leaves.
a)
nitrogen
b)
potassium
c)
phosphorus
d)
oxygen
6.
Plants need ___ for new cell growth throughout the plant, resistance to disease, and strong stems.
a)
nitrogen
b)
potassium
c)
phosphorus
d)
oxygen
7.
Plants need ____ for root development, and to produce flowers and fruit.
a)
nitrogen
b)
potassium
c)
phosphorus
d)
oxygen
8.
Plants need nitrogen to grow, but cannot use it directly from the atmosphere.
a)
True
b)
False
9.
Plant fertilizers have three numbers on them: the numbers represent the percentages of nitrogen, phosphorus, and carbon found in the fertilizer.
a)
True
b)
False
10.
The earth's atmosphere is ___ % nitrogen.
a)
50
b)
28
c)
78
d)
7
11.
You have heard that carrots like a loamy type soil but that the soil should have very good water drainage for the carrots' roots. What would be the BEST type of soil for growing carrots?
a)
clay
b)
silty clay loam
c)
sandy loam
d)
silt
12.
A friend brings you some soil from his yard and says that he knows it is 50% silt and 50% clay. He knows that you have been studying soil and asks for your help with identifying the type. What type of soil does your friend have?
a)
silty clay
b)
sandy clay
c)
clay loam
d)
There is not enough information to type the soil.
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