1. Properties of Water Polarity Cohesion Adhesion Solubility
Water has unique properties
Polarity
Cohesion
Adhesion
Solubility
High Surface Tension
Density
High Specific Heat
High heat of Vaporization pH

2. Properties of Water Polarity Cohesion Adhesion Solubility
Water has unique properties
Polarity
Cohesion
Adhesion
Solubility
High Surface Tension
Density
High Specific Heat
High heat of Vaporization pH

3. Properties of Water Polarity
A water molecule is a “polar” molecule: slightly positive in one area and slightly negative in another area
Water molecules are highly attracted to one another

4. Properties of Water Surface Tension
Because of the polarity, water molecules are very attracted to each other, even more than it is attracted to air.
Water forms a “skin” on the surface.
There are two types of surface tension

5. Properties of Water Cohesion The attraction between water molecules.
Water sticks to water

6. Properties of Water Adhesion
The attraction between water molecules and other substances
Water sticks to other things

7. pH – is a measure of how acidic or basic something is
7 is neutral < 7 is acidic > 7 is basic

9. Properties of Water
High Specific Heat - heat required to raise the temperature by 1 degree The higher the specific heat, the longer it takes to heat up a substance Higher S.H = more energy to heat up

11. Specific Heat plays a role in ecosystems

12. Properties of Water High Heat of Vaporization
Heat of vaporization is the energy required to convert liquid water to a gas.
The faster the liquid evaporates the lower the heat of vaporization.
Faster evaporation = lower heat of vaporization
When a liquid changes into a gas it is called evaporation