Across
- 3. layer of soil that differs in color and texture from the layers above and below it
- 6. consists of clay, other particles washed down from the A horizon. But has little humus
- 8. solid layer of rock beneath the soil
- 12. measure of how well the soil supports plant growth
- 13. soil that is made up of equal parts of clay, sand, silt
- 14. loose layer of soil formed as plants shed leaves
Down
- 1. a substance that reacts strongly with some metals and changes blue litmus paper red
- 2. crumbly, dark, brown soil that is a mixture of humus, clay, other minerals
- 4. dark colored substance that forms as plants and animals decay
- 5. substance that feels slippery and changes red litmus paper blue
- 7. an organism that breaks the remains of dead organisms into smaller pieces and digest them with chemicals
- 9. animals in the soil that mix humus with other materials in the soil
- 10. loose , weathered material on Earths surface in which plants grow
- 11. microscopic decomposers that cause decay
- 12. organisms such as molds and mushrooms