Science: Soil

3. - substances added to the soil or sprayed on the leaves of plants to keep them well nourished.
5. - natural or related to nature.
6. - a substance used to destroy pests, such as insects or weeds.
10. - a medium-sized soil particle. It feels smooth and powdery. It is difficult for water to pass through.
11. - the upper layer of the earth's surface. It is a mix of organic material, broken rock and minerals.
14. - anything that has weight and takes up space.
15. - made of decaying plant and animal remains.
16. - soil is made of many layers. What is the name?

1. - a hole or tunnel dug by a small animal to make a home.
2. - made of a solid mass of rock.
4. - the largest solid particle. It feels rough and gritty. It is good for water drainage.
7. - a burrowing worm that lives in the soil. It breaks down organic matter, lie leaves, into soil that plants can use.
8. - a fertilizer that is made out of natural materials, like dead plants.
9. - the smallest soil particle. It feels hard, but sticky when wet.It is very difficult for water to pass through.
12. - preserved remains of plants and animals that were once living on Earth.
13. - the washing or blowing away of the top layer of soil.