Water: A Limited Resource Chapter 14. The Importance of Water Objectives: 1.Describe how the structure of water molecules accounts for the many important.

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Presentation transcript:

Water: A Limited Resource Chapter 14

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

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

The Importance of Water Our Supply of Fresh Water

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

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

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

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

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

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

The Importance of Water The Hydrologic Cycle

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

The Importance of Water Aquifers

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