Answer:
Information used from Prentice Hall Biology book from the year 2006.
Cohesion is the attraction between molecules of the same substance. Due to hydrogen bonding water is very cohesive. Water's cohesion causes molecules on the surface of the water to be drawn inward causing "surface tension". This property allows insects to walk on water.
Adhesion is the attraction between molecules of different substances. Adhesion causes water to rise in a narrow tube against the force of gravity for example the forces that draw water out of the roots of the plants and up into its stems and leaves, this is called capillarity.