Across
- 2. small pieces of decayed plants and animals
- 3. layer of soil where no plants or animals can be found
- 5. the smallest rock particle
- 6. Humus provides ________ for plants.
- 8. remains of dead plants and animals
- 9. Worms move in soil making passageways for ______ and ______.
- 11. Not all soils are ________.
- 12. layer that contains mostly large broken pieces of rock
- 14. Pieces of rock that are smaller than sand
Down
- 1. a tightly packed layer of minerals
- 4. Rocks, air and water are ______ ______.
- 7. layer containing plant roots and animals can be found here
- 10. another name for soil
- 13. Soil is made of several sizes of _______.