Across
- 2. tiny pieces of rock that water passes through easily
- 4. soil that is found on the top layer
- 6. to break down or rot
- 7. a thing plants need in order to grow
- 10. this soil is under topsoil
Down
- 1. has many minerals and other nutrients
- 2. the layers that the soil is organized into
- 3. materials that plants grow in
- 5. it makes new soil
- 8. soil that has humus, sand, silt, and clay
- 9. water passes slowly in this