1. Earth’s Water

2. Where is Earth’s water?
97% of Earth’s water is salt water in the Oceans
Only 3% of Earth’s water is fresh water
Most fresh water on Earth is frozen in ice caps or glaciers
About 1% of Earth’s fresh water is considered free water, that means it is not frozen

3. Where is free water found?
Surface water: rivers and lakes
Ground water: water that is found underground

4. The Water Cycle
Water on Earth is in a constant cycle of movement known as the water cycle
The energy to power the water cycle comes from the sun

5. Water Cycle Processes Evaporation: changing from liquid to gas
Condensation: changing from gas to liquid
Precipitation: water falling from clouds
Percolation/infiltration: water seeping under ground
Runoff: water that flows from land to streams, rivers, or the oceans
Accumulation: water that collects in one place

6. Condensation
Precipitation
Evaporation
Runoff
Percolation
Accumulation
Groundwater