2. WHAT IS THE WATER CYCLE? Water is always moving between the atmosphere (troposphere) and surface of Earth. Water is always moving between the atmosphere (troposphere) and surface of Earth.

3. PRECIPITATION After condensation occurs (forming clouds), water droplets fall in various forms depending on weather conditions: After condensation occurs (forming clouds), water droplets fall in various forms depending on weather conditions: Rain Rain Snow Snow Sleet Sleet hail hail

4. EVAPORATION Water on the surface is heated and returned to the atmosphere in the form of gas. Water on the surface is heated and returned to the atmosphere in the form of gas. Examples: Examples: Ponds Ponds Lakes Lakes Streams Streams Rivers Rivers Oceans Oceans

5. TRANSPIRATION Water on the surface is heated and returned to the atmosphere in the form of gas. Water on the surface is heated and returned to the atmosphere in the form of gas. Examples: Examples: Plants Plants Animals Animals

6. CONDENSATION Happens in the atmosphere as water vapor changes to water droplets. Happens in the atmosphere as water vapor changes to water droplets. Clouds form. Clouds form. Dew forms when water vapor condenses onto a surface. Dew forms when water vapor condenses onto a surface. Frost forms when water vapor changes from gas directly to ice crystals. Frost forms when water vapor changes from gas directly to ice crystals.

7. RUN-OFF If precipitation falls on land surfaces, it always attempts to move back toward sea level as surface-water flow or groundwater flow. If precipitation falls on land surfaces, it always attempts to move back toward sea level as surface-water flow or groundwater flow.