water

• polar - molecule with slight positive charge on one side and a slight negative charge on the other
• latent heat of vaporisation - heat energy needed to change a liquid to a gas
• cohesion - attraction between two molecules of the same type
• adhesion - attraction between two different kinds of molecule
• solvent - able to dissolve other substances
• surface tension - the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer, which tends to minimise surface area
• the bond between two water molecules (oxygen to hydrogen) is a hydrogen bond
• the bond within the water molecule (oxygen and hydrogen) is a covalent bond