Soil Horizons Exploration
An educational worksheet for Grade 6 students to explore the different layers of soil and their characteristics.
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Topics
Soil Horizons Exploration
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Read each question carefully and answer to the best of your knowledge. Use the provided image to help you answer questions about soil horizons.
Observe the diagram below, which illustrates the different layers of soil, also known as soil horizons.
1. Which soil horizon is primarily composed of organic matter like decaying leaves and plants?
A Horizon
O Horizon
B Horizon
C Horizon
2. The 'topsoil' layer, rich in humus and essential for plant growth, is typically found in which horizon?
R Horizon
C Horizon
A Horizon
O Horizon
3. The B horizon is also known as the , where minerals and clay accumulate.
4. The C horizon is made up of partially weathered , which is the parent material for the soil.
5. The unweathered bedrock is found in the horizon.
6. All soil horizons are present in every type of soil.
True
False
7. The O horizon is typically very dark due to the presence of decomposed organic matter.
True
False
8. Describe the main characteristic of the A horizon and why it is important for plant life.
9. Explain the difference between the C horizon and the R horizon.
Match each soil horizon with its primary characteristic.
10. O Horizon
a. Unweathered bedrock
11. A Horizon
b. Organic matter layer
12. B Horizon
c. Topsoil, rich in humus
13. C Horizon
d. Subsoil, accumulation of minerals
14. R Horizon
e. Partially weathered parent material
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