Soil
by Daisy Kelley
1. Descriptions
2. Layers
3. Is made of
3.1. Organic Matter
3.2. Weathered Rocks
3.2.1. Sand
3.2.2. Silt
3.2.2.1. Clay
4. Types
4.1. Rocky Soil
4.1.1. Sandy Soil
3.2.1. Sand
3.2.2. Silt
3.2.2.1. Clay
4.1.1. Sandy Soil