Homework I texture, density

Homework I texture, density - Homework I Soils in the...

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Homework I Soils in the Environment Name ______________________________ Answer the following questions using material from lecture and/or your text. Homework is due on Thursday, May 21 st , in class. 1. Soil A contains 40% sand, 40% silt and 20% clay. Soil B contains 60% sand, 10% silt and 30% clay What is the soil textural class of soil A? _______________ What is the soil textural class of soil B? _______________ Which soil has the greater specific surface area? _______________ 2. A 40 g soil sample is placed in a 1-Liter sedimentation cylinder. After shaking the cylinder to suspend the particles, a hydrometer reading is taken after 1 minute. The hydrometer reading is 30 g/L. What material remains in suspension after 1 minute? ___________________ What material has settled? _________________ What is the % sand content of the sample? ________________________ The soil above is allowed to settle for 6 hours. The hydrometer reading at that time is 8 g/L.
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This note was uploaded on 07/31/2011 for the course SOS 3022 taught by Professor Staff during the Fall '08 term at University of Florida.

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Homework I texture, density - Homework I Soils in the...

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