Earth’s Surface
Chapter 2 Weathering and Soil
1. Review and Reinforce
2. Lesson Quiz
Answer Keys
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Lesson 1 Rocks and Weathering
Review and Reinforce Worksheet
1. Abrasion
2. Acid rain
3. Mechanical
4. Chemical
5. Carbonic acid
6. Animal actions
7. Mechanical
8. Chemical
9. Chemical
10. The factors that determine the rate of
weathering are the type of rock and the climate.
• 11. Permeable
• 12. frost wedging
Lesson 1 Rocks and Weathering Quiz
1.
3.
5.
7.
9.
2.
B
4.
uniformitarianism 6.
oxidation
8.
mechanical
10.
D
C
A
pressure
rock
permeable
Lesson 2 How Soil Forms
Review and Reinforce Worksheet
• 1. The A horizon is composed of topsoil, a crumbly, dark brown
soil that is a mixture of
humus, clay, and other minerals.
• 2. The B horizon, called subsoil, is made mostly of clay and other
particles, but little humus.
• 3. The C horizon contains only partly weathered rock.
• 4. Soil forms as rock is broken down by weathering and mixes
with other materials on Earth’s surface. It consists of a mixture of
rock particles, minerals, decayed organic material, air, and water.
• 5. Some soil organisms mix the soil and make spaces in it for air
and water. Other soil organisms make humus, the material that
makes soil fertile.
6.
8.
10.
12.
14.
h
f
d
g
e
7.
9.
11.
13.
b
c
a
e
Lesson 2 How Soil Forms Quiz
1.
3.
5.
7.
9.
false/subsoil
false/bedrock
true
B
D
2.
4.
6.
8.
10.
false/high
true
true
B
C
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Lesson 3 Soil Conservation
Review and Reinforce Worksheet.
1. Plowing
2. drought
3. Wind
4. Dust Bowl.
5. Soil is valuable because everything that lives on the surface
depends directly or indirectly on soil.
6. Soil is damaged when it loses its fertility. Soil loss is caused by
water or wind erosion.
7. Farms conserve soil by practicing contour plowing,
conservation plowing, and crop rotation.
8. contour plowing
9. Soil conservation
10. conservation plowing
11. crop rotation
12. natural resource
Lesson 3 Soil Conservation Quiz
1.
3.
5.
7.
9.
natural resource
erosion
nutrients
true
true
2.
4.
6.
8.
10.
conservation
crop rotation
limited
decreased or reduced
Contour