- Consider a 200-cm3 (cc) soil core that weighs 260 g when oven-dried and 360 g when saturated. The
core can hold 100 g of water (equivalent to 100 cm3), so total pore space is 100 cm3. Porosity is 100
cm3/200 cm3 x 100%, or 50%. This is a typical porosity measure for a medium-textured soil. Calculate the
particle density (PD) of this soil sample.