Soil Profile Worksheet
Explore the layers of the Earth's soil profile, understanding the composition and characteristics of each horizon.
Includes
Standards
Soil Profile Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Refer to the provided diagram if necessary.
Observe the diagram below showing a typical soil profile.
1. Which soil horizon is typically characterized by the accumulation of organic matter and is often dark in color?
O Horizon
A Horizon
B Horizon
C Horizon
2. The process where minerals and organic matter are leached from upper horizons and deposited into lower horizons is called:
Weathering
Erosion
Illuviation
Eluviation
3. The horizon is commonly known as topsoil and is rich in humus.
4. The horizon consists of partially weathered parent material.
5. Bedrock is found in the horizon.
6. The O horizon is primarily composed of mineral matter.
True
False
7. The B horizon is also known as the zone of accumulation.
True
False
8. Describe the main characteristics of the A horizon and its importance for plant growth.
9. Explain the difference between eluviation and illuviation.