Earth's Water

1. Characteristics of Water

1.1. Phases of Water

1.2. Hydrogen Bonding

1.3. Density

2. Water Use

2.1. People

2.2. Other Living Things

2.3. Pollution

3. Available Water

3.1. Oceans

3.2. Fresh Water

3.2.1. Rivers and Streams

3.2.2. Lakes and Ponds

3.2.3. Groundwater

4. The Water Cycle

4.1. Water in the Ground

4.1.1. New node

4.2. Water in the Air

4.3. Water in Plants