- EVAPORATION The process where liquid water changes into water vapor (gas).
- PLANT UPTAKE Water taken from the groundwater flow and soil moisture.
- TRANSPIRATION Evaporation of liquid water from plants and trees into the atmosphere.
- SUBLIMATION The process where ice and snow (solid) change into water vapor (gas), skipping the liquid phase.
- CONDENSATION The process where water vapor (gas) changes into water droplets (liquid).
- TRANSPORTATION The movement of solid, liquid and gaseous water through the atmosphere.
- PRECIPITATION Water that falls to the earth. Most precipitation falls as rain but includes snow, sleet, drizzle, and hail.
- DEPOSITION The process where water vapor (gas) changes into ice (solid), skipping the liquid phase.
- INFILTRATION Movement of water into the ground from the surface.
- PERCOLATION Movement of water past the soil going deep into the groundwater.
- RUNOFF River, lake, and stream transport of water and transport of ice in glaciers.
- GROUNDWATER Underground water flow (aquifers).