Volumes of solid. water and air. the soil model masses volumes Air Mw=Srew water / /w=sv,=e =wG Solid +-"> Ms= Gsr specific V=1 gravity Gs The soil model is given dimensional values for the solid, water and air components: Total volume Ⅴ=Vs+Ⅴw+VaVolumes of solid, water and air: the soil model The soil model is given dimensional values for the solid, water and air components: Total volume, V = Vs + Vw + Va