| A | B |
|---|
| cycle | goes around, with no beginning or end. Follows a pattern. |
| precipitation | rain, snow, sleet, or hail. When water vapor changes to a liquid or a solid. |
| ground water | water that has soaked into the soil. Water from precipitation that soaks into the soil and runs off the land back to oceans, rivers, and streams. |
| evaporation | when a liquid changes to gas. Water from oceans, rivers, streams, humans, animals, and plants change to gas. |
| condensation | when water vapor changes to liquid water in the form of a cloud. |
| wetland | any place that is wet, e.g. a swamp or marsh; the soil is soaked with water. |
| estuary | a drowned river. Sea water moves inland to mix with river water. |
| bag | made up of thick, fibrous vegetative matter. |
| ecosystem | the whole group of living and nonliving things that make up an environment and affect each other. |
| condensation | The process by which gas becomes a liquid. Water vapor turns into liquid water by condensation. |
| weathering | The process by which earth materials are broken down by natural forces. |
| erosion | The process by which earth materials are broken down and moved from place to place. |
| delta | An area of land where a stream drops sediment and other materials as it empties into the sea or another large body of water. Such an area is called a delta because it is often shaped like a triangle. |
| tributary | a stream that flows to a larger stream or other body of water. |
| hydroelectricity | Electricity that is generated by waterpower. |
| ground cover | Trees, shrubs, grasses, plants, and decayed plant material. |
| flash flood | a sudden and destructive rush of water caused by heavy rainfall. |
| water cycle | The process by which water moves through the ground, evaporates from earth into the air, forms clouds, and falls back to earth as rain or snow. |
