Calculate the wet and dry densities of the soil.

Describe the sand replacement method of determining the in-situ density of the soil.

The following results were obtained from the test:

Mass of soil extracted from hole 4.0kg

Water content of soil 18%

Mass of dry soil to fill hole 3.1kg

Mass of dry sand to fill container of volume 4.2litres          5.8kg

If the specific gravity of the particles is 6.28, find the degree of saturation of the soil.