Soil Composition Worksheet
Explore the different layers and components of soil with this Grade 4 science worksheet focusing on soil composition.
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Soil Composition Worksheet
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Read each question carefully and answer to the best of your ability. Use the provided illustration to help you answer questions about soil layers.
Observe the image below showing a typical soil profile.
1. Which layer of soil is usually the darkest and contains the most humus?
Bedrock
Topsoil
Subsoil
Parent Material
2. Which of these is NOT a main component of soil?
Minerals
Air
Plastic
Water
3. The decayed remains of plants and animals in soil are called .
4. Soil is made up of rock particles, , air, and water.
5. All soils are the same color and texture.
True
False
6. Topsoil is very important for growing plants.
True
False
7. Briefly explain why soil is important for life on Earth.
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