Bio Water Properties

capillary action

Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances). Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to left) is limited by surface tension and, of course, gravity.

cohesion

Cohesion in water is the property that makes water molecules attracted to one another to form hydrogen bonds.

universal solvent

In fact, water is called the "universal solvent" because it dissolves more substances than any other liquid. This is important to every living thing on earth. It means that wherever water goes, either through the air, the ground, or through our bodies, it takes along valuable chemicals, minerals, and nutrients

adhesion

The force of attraction that causes two different substances to join.

surface tension

The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.

heat capacity

Water is able to absorb a high amount of heat before increasing in temperature, allowing humans to maintain body temperature.

evaporate cooling

education in temperature resulting from the evaporation of a liquid, which removes latent heat from the surface from which evaporation takes place. This process is employed in industrial and domestic cooling systems, and is also the physical basis of sweating.

density

mass or volume

hydrophobic

molecules that fear water molecules lack charge and Are non polar and are pushed out by water cohesive forces.

imibition

movement of liquid into a solid

hydrophillic

they are polar molecules that hyrdrogen bods around the p;oar moleclues. breaks teh cohesice forces.