1. Hydrologic Cycle

2. Water Cycle The movement of water from the Earth’s surface into the air and back to the surface again http://www.deq.state.la.us/assista nce/educate/liquid2.htm

3. Evaporation The process by which a liquid changes into a gas Caused by the heating of water

4. Condensation The process by which a gas changes into a liquid Caused by the cooling of the gases

5. Precipitation The water that falls to the earth as rain, snow, sleet, or hail

6. Rain Rain develops when growing cloud droplets become too heavy to remain in the cloud They then fall toward the surface as rain

7. Snow The ice crystals that fall to earth as soft, white flakes

8. Sleet Freezing rain Frozen raindrops that bounce on impact with the ground or other objects

9. Hail Large frozen raindrops produced by intense thunderstorms

10. Accumulation (Collection) The build-up of water on the Earth’s surface Streams, rivers, ponds, lakes, seas, and oceans hold accumulation

11. Run-off The movement of a liquid In the water cycle it is the movement, or flow, of water once it comes back to the Earth’s surface.

12. Ground Water A form of fresh water that is found under the Earth’s surface Water seeps into the ground and collects in the water table.