Water moves in soil under the influence of gravity, osmosis and capillarity. Water moves through soil due to the force of gravity, osmosis and capillarity. Surface tension is an important factor in the phenomenon of capillarity. This provides a comparison between bending stiffness (elasticity) and surface tension (capillarity). It is also found as efflorescent natural formation, leaving the soil by capillarity. At higher suction, water movement is pulled by capillarity from wetter toward drier soil. Archimedes' principle does not consider the surface tension (capillarity) acting on the body. Apart from simple situations, capillarity remains an area where fundamental questions remain.