Be able to define the size of colloids, clay, silt, sand, and gravels.
A) Colloids: < 0.001 mm, Clay: 0.001 - 0.002 mm, Silt: 0.002 - 0.05 mm, Sand: 0.05 - 2 mm, Gravel: > 2 mm
B) Colloids: < 0.001 mm, Clay: 0.001 - 0.002 mm, Silt: 0.002 - 0.05 mm, Sand: 0.05 - 2 mm, Gravel: > 5 mm
C) Colloids: < 0.001 mm, Clay: 0.001 - 0.005 mm, Silt: 0.005 - 0.1 mm, Sand: 0.1 - 2 mm, Gravel: > 2 mm
D) Colloids: < 0.001 mm, Clay: 0.001 - 0.005 mm, Silt: 0.005 - 0.1 mm, Sand: 0.1 - 5 mm, Gravel: > 5 mm