Across
- 3. Lowest layer. Composed of solid rock layers.
- 4. Nutrient rich, decayed organic material, rich color.
- 5. Layer of soil that contains the most humus.
- 7. Contains leaf debris and some humus.
Down
- 1. The bedrock from which soil is made.
- 2. composed mostly of sediment, very light in color.
- 6. Sits on top of the Earth's crust. Composed of sediment and organic material.
- 8. mixture of sand, silt, clay and organic material.