EXERCISE 3 (Continued) 

 Physical Properties of Soils 



(19) 



3. Examine under the high or low power microscope, samples of fine gravel, 

 coarse sand, medium sand, fine sand, very fine sand, silt, and clay, 

 sandy loam and muck. Make drawings of each showing how they differ 

 in shape and relative size. 



QUESTIONS 



1. How do the particles in each of the samples differ in color? 



2. Name the first seven according to relative size, stating their diameter in 



inches. 



3. Compare them with the sample of sandy loam. 



4. How does the muck differ from the others in texture and general appear- 



ance? 



