Soil layers

1. soil layer that is made up of dark, decayed organic materials, such as the remains of plants and animals
4. organisms that break down the remains of dead plants or animals
6. the sticking together of soil particles
8. a type of soil that is made up of the largest particles
9. a type of soil that is the best for growing plants
12. soil layer that has the highest proportion of organic material
13. soil layer that contains partially weathered bedrock, also called the "C" horizons
14. the deepest soil layer that contains solid rock in it.
15. a type of soil that is made up of very small rock in it.

2. soil layer that is under the topsoil layer
3. the scientist who studies soil
5. a type of soil that holds the most water
7. soil-dwelling organisms that help break down organic matter and improve soil structure by creating tunnels.
10. the process of breaking rocks into smaller pieces over time
11. distinct layers of soil