Soil Profile Exploration
An engaging worksheet for 7th graders to explore the layers of soil, their composition, and importance.
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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 image of the soil profile to help you answer some of the questions.
Observe the diagram of the soil profile below:
1. Which soil horizon is primarily composed of organic matter, such as 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?
O Horizon
B Horizon
A Horizon
R Horizon
3. The layer of weathered rock fragments found above the bedrock is called the .
4. Water and dissolved nutrients are often leached from the A horizon and accumulate in the horizon.
5. The R horizon is also known as the parent material.
True
False
6. The O horizon is typically found in deserts.
True
False
7. Describe the main characteristic differences between the A horizon and the B horizon.
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