| A | B |
|---|
| water cycle | The continuous process by which water moves from Earth's surface to the atmosphere and back. |
| precipitation | Any form of water that falls from clouds and reachs Earth's surface. |
| groundwater | Water that fills the cracks and spaces in underground soil and rock layers. |
| tributaries | The streams and smaller rivers that feed into a main river. |
| watershed | The land area that supplies water to a river system. |
| divide | a ridge of land that separates one watershed from another |
| habitat | A place where an organism lives and obtains all the things it needs to survive. |
| reservoir | A lake that stores water for human use. |
| wetland | A land area that is covered with water during part or all of the year. |
| condensation | process by which a gas changes into a liquid when it cools down enough |
| evaporation | process by which a liquid changes into a gas when it warms up enough |
