This is a great kit for teaching students about soil textures. The soils samples are intended for students who are doing a texture analysis by feel and appearance. See Activity 2: Soil Textures By Feel in the lesson plan Types by Texture. The kit includes two cups of sand, two cups of silt loam, and two cups of clay. All of the soil samples are from the state of Utah and are representative of the Intermountain Region, although the mineral content may be different, the particle sizes are true to soil texture type and can be used by other states for demonstration purposes.
Contextualize the soil samples with the soils lessons found on the National Agricultural Literacy Curriculum Matrix.