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Soil Particle Size Distribution

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Students will suspend a known mass of dry soil in water and measure the specific gravity of the suspension after sand and then silt has settled out of the suspension to determine the amount of each soil particle size group in the sample

Protocols to help in completion of the main protocol.

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Students will use a technique chosen by their teacher to expose a soil profile for characterization.

Step-by-step instructions for collection data according to the protocols.

Sheets to be filled out during data collection.

Activities to help students learn more about the instruments and protocols.

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Students will understand the geologic phenomena of weathering and erosion. These processes, along with deposition, shape our landforms and contribute to the development of parent material in the soil formation process.
An activity which highlights the importance of learning about the soils on Earth. In this activity students explore some of the many uses of soils, learn the five soil-forming factors, and gain a better understanding of how little of Earth's surface is covered in soil.

Additional documents or tools related to the protocol.