2 Water is PolarWater is a polar molecule, meaning that there is an uneven distribution of chargeWater has a slight negative charge near the oxygen and slight positive charge near the hydrogen atoms.
3 Water forms hydrogen bonds Because they are polar, water molecules are attracted to each other.The negative oxygen is attracted to the positive hydrogenMany of water’s special properties come from its ability to form hydrogen bonds
4 Adhesion & CohesionCohesion is an attraction between molecules of the same substance.Adhesion is an attraction between molecules of different substances.
5 Surface Tension Cohesion can cause surface tension. Since the water doesn’t have to bond with anything “above it’ those bonds are stronger and the water skeeter can walk on it
6 Capillary Action Adhesion can causes capillary action Water can get pulled up small tubes, like the veins of plants
7 Water expands as it freezes Ice is less denseHydrogen bonds push water molecules further apart from each otherIce floats on waterProtects organisms underneathActs like insulation