1. Water: A Limited Resource Chapter 14

2. The Importance of Water Objectives: 1.Describe how the structure of water molecules accounts for the many important characteristics of water. 2.Describe the distribution of water throughout the Earth

3. The Importance of Water Water: shapes continents moderates our climate is essential for all living organisms

4. The Importance of Water Our Supply of Fresh Water

5. The Importance of Water Properties of Water Composition and polarity Hydrogen bonding properties

6. The Importance of Water Unique properties: Water has a high melting point (0 o C) and a high boiling point (100 o C)

7. The Importance of Water Unique properties: Water has a high specific heat It can absorb or release large amounts of energy without its temperature changing significantly

8. The Importance of Water Unique Properties: Water has high heat of vaporization

9. The Importance of Water Unique properties: Water is the universal solvent Chemical composition of seawater

10. The Importance of Water Unique Properties: Liquid water becomes less dense as it warms Ice is less dense than liquid water

11. The Importance of Water The Hydrologic Cycle

12. The Importance of Water Types of water: surface water runoff drainage basin (watershed) groundwater aquifers

13. The Importance of Water Aquifers