Florida Science Grade 6

Chapter 11: Weathering and Soil

Standardized Test Practice

1.
Which of the following describes a soil's texture? SC.D.1.3.1
A)red
B)dry
C)silty loam
D)wet
2.
Which soil horizon usually contains humus? SC.D.1.3.2
A)B horizon
B)A horizon
C)C horizon
D)E horizon
3.
Which of the following is a chemical weathering agent? SC.D.1.3.1
A)growing tree roots
B)ice wedging
C)burrowing animals
D)carbonic acid
4.
Which of the following might mix a soil creating good-quality soil? SC.D.1.3.4
A)a gentle rain
B)organic matter
C)compaction
D)worms
5.
Which type of rock is suitable for cave formation? SC.D.1.3.1
A)sandstone
B)limestone
C)basalt
D)granite
6.
During a severe drought, which will likely cause the most erosion of a farmland? SC.D.1.3.1
A)soil creeping downhill
B)water runoff
C)ice
D)wind
7.
According to the table, which horizon in this soil has the highest percentage of sand?

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SC.D.1.3.1
A)A horizon
B)C horizon
C)B horizon
D)R horizon
8.
What is the R horizon composed of? SC.D.1.3.1
A)bedrock
B)topsoil
C)humus
D)gravel
9.
Which term best describes the soil represented by the table?

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SC.D.1.3.1
A)sandy
B)silty
C)clayey
D)loam
10.
When was the surface soil the warmest? The coldest?

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SC.D.1.3.1
A)October; March
B)May; November
C)August; February
D)October; January
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