5.2.1. Wet Sieving

Try these first

1. 1.

   What is the purpose of wet sieving?

   Hint

   Think about what happens when you wash soil.

2. 2.

   Why don’t we use dry sieving for particles smaller than 75 microns?

   Hint

   Consider how small particles behave when dry.

3. 3.

   What is the main purpose of wet sieving?

   • To dry soil samples
   • To separate fine grains
   • To measure soil temperature

   Hint

   Consider which method focuses on separating sizes.

4. 4.

   True or False: Sedimentation analysis is used for soil particles larger than 75 microns.

   • True
   • False

   Hint

   Recall the size limits for each analysis method.

5. 5.

   Given a soil sample, set up a wet sieving and sedimentation analysis process and analyze how to combine results into a grading curve.

   Hint

   Ensure you understand how to convert measurements into cumulative percentages for graphing.

6. 6.

   Evaluate how varying the amount of water affects the effectiveness of sedimentation in calculating particle sizes.

   Hint

   Consider viscosity and how it impacts settling speed!