- A good soil has, hummus, moisture, living organism in the topsoil
- the physical structure of the soil relates to the particle size
- inorganic portion is made of particles with different size particles like gravel, sand, silt, and clay
- ratio of silt sand and clay is used to name the soil
- soil triangle is used to determine the name
- to determine the name you need the percentages of the clay, silt, and sand of the soil
- sandy soil has poor nutrients and water just goes through it
- clay holds the water too long and creates hard soil