1. Earth’s Surface Chapter 2 Weathering and Soil
Review and Reinforce
Lesson Quiz
Answer Keys

2. 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

3. Lesson 1 Rocks and Weathering Quiz
3. B
5. uniformitarianism
7. oxidation
9. mechanical
2. C
4. A
6. pressure
8. rock
10. permeable

4. 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. h
8. f
10. d
12. g
14. e
7. b
9. c
11. a
13. e

5. Lesson 2 How Soil Forms Quiz
1. false/subsoil
3. false/bedrock
5. true
7. B
9. D
2. false/high
4. true
6. true
8. B
10. C

6. 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

7. Lesson 3 Soil Conservation Quiz
1. natural resource
3. erosion
5. nutrients
7. true
9. true
2. conservation
4. crop rotation
6. limited
8. decreased or reduced
10. Contour