Water

1. Water's Family Tree

1.1. The chemical form of water is H20

1.2. Water Molecules were created inside the hot interior of stars.

1.3. Scientists think that water arrived on earth by floating through space and created an atmosphere.

1.4. Earth is made up of 70% of water.

2. Show Me the Water

2.1. We only have 3% of freshwater, but about 2% are in Glasers and ice capes.

2.2. Water pollution

3. Precious Freshness

3.1. Water is finite

3.2. It requires a lot of energy to remove the salt from the water

3.3. Conserving Water

3.3.1. Keep it clean and free of contaminants

3.3.2. Harvest Rainwater

3.3.3. Using less

4. Earth's Water

4.1. Evaporation

4.1.1. process of a liquid changing into a gas.

4.2. Condensation

4.2.1. the conversion of a vapor or gas to a liquid.

4.3. Precipitation

4.3.1. the action or process of precipitating a substance from a solution.

4.4. Transpiration

4.4.1. the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.

4.5. Groundwater

4.5.1. water held underground in the soil or in pores and crevices in rock.

4.6. Infiltration

4.6.1. process by which water on the ground surface enters the soil.

5. The Water Cycle

5.1. the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.