Soil isn't just plain old dirt! It's a mix of different things like tiny rocks, sand, silt, clay, and even bits of dead plants and animals called humus. The amounts of each of these things determine what type of soil it is. Soil composition is super important because it affects how well plants can grow. Some plants like sandy soil, while others prefer soil that's mostly clay. Understanding what's in soil helps us grow food and keep our planet healthy!
Match the words with their correct definitions:
| Word | Definition |
|---|---|
| 1. Humus | A. Tiny rock pieces in soil |
| 2. Sand | B. Decayed plant and animal matter in soil |
| 3. Clay | C. Soil with very small particles, feels sticky when wet |
| 4. Silt | D. Soil with larger particles, feels gritty |
| 5. Gravel | E. Soil with particles between sand and clay in size |
Fill in the missing words in the paragraph below:
Soil is made up of different __________. These include __________, __________, and __________. Decomposed organic material, called __________, is also a key part of healthy soil. The type of soil affects how well __________ can grow.
Imagine you are a farmer. Why would it be important for you to know the composition of the soil in your field? How could you improve soil that is not good for growing crops?
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