1. THE WATER CYCLE

2. If we wanted to find freshwater on Earth, where could we find it?

3. 3 3 2

4. 1. The Sun
The Sun heats up the water in Earth’s oceans and lakes.

5. Evaporation
2. Evaporation: liquid water changes to a gas called water vapor.

6. Transpiration
Transpiration: water vapor is released by plants.

7. 3. Condensation 3. Condensation: Warm air carries water vapor upward.
The air cools and condenses into liquid water.
Tiny droplets of water clump together around tiny dust particles in the air, forming clouds.

8. 4. Precipitation 4. Precipitation:
As more water vapor condenses, the drops of water grow larger and heavier.
The heavy droplets fall as precipitation (rain, snow, sleet, hail).

9. Surface Run off and Collection
5. The precipitation that falls on land may:
soak into the soil and become groundwater OR
Run off the land, eventually collecting into
a watershed (ocean or lake).

10. Water Cycle Lab
Water works in cycles to recycle the Earth’s water and to purify it
Let’s complete a lab to demonstrate how the water cycle works with pollution.