Soil Profile Exploration
Explore the different layers of soil with this interactive worksheet, designed for grade 6 science students.
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Soil Profile Exploration
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Read each question carefully and answer to the best of your ability. Refer to the soil profile diagram for assistance.
Observe the diagram below showing a typical soil profile.
1. The uppermost layer of soil, rich in organic matter, is called the .
2. The layer often called the 'subsoil' is the horizon.
3. Large rocks and weathered parent material are found in the horizon.
4. The solid, unweathered rock beneath all other layers is known as .
5. Which soil horizon is best for plant growth due to its high nutrient content?
O Horizon
A Horizon
B Horizon
C Horizon
6. The process that breaks down rock into smaller pieces, forming soil, is called:
Erosion
Deposition
Weathering
Compaction
7. The O horizon is primarily made up of weathered rock fragments.
True
False
8. The B horizon is often lighter in color and contains less organic matter than the A horizon.
True
False
9. Briefly describe the main difference between the A horizon and the B horizon.
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