| Term | Definition |
|---|
| Pollution | A change in the quality of water or air that makes it unsafe for certain uses. |
| Food Chain | The pathway in which energy is transferred from one organism to another. |
| Nutrients | Essential elements needed for growth and development of organisms. |
| Condensation | When a gas vapor becomes a liquid or solid (rain, hail, snow). |
| Water Cycle | The constant circulation of water from the atmosphere to the land and oceans and back again. |
| Reservoir | A large body of water that is formed behind a dam. |
| Evaporation | The process where water is turned from a liquid or a solid to a gas vapor. |
| Natural Resources | Air, water, soil, trees, minerals, wildlife and other things that make up the natural parts of the earth. |
| Fresh Water | Water that has a very small amount of dissolved salts. |
| Erosion | The movement of particles that were broken down by the action of water, wind or ice. |
| Transpiration | The process where plants give up water through their leaves. |
| Precipitation | The falling of rain, sleet, snow or hail. |
| Salt Water | Water that has a large amount of dissolved salts. |
| Hydrology | The study of water. |
| Groundwater | Water located under the earth's surface. |
| Well | A pit, hole or shaft used to bring up water from underground. |
| Wetlands | Water saturated lands where aquatic plants and animals live. |
| Ecosystem | Organisms living and interacting in the same environment as a community. |
| Aquifer | An underground layer that allows water to flow through the ground. |
| Consumers | Can be an herbivore or carnivore. |
| Producers | Organisms that produce their own energy through photosynthesis and provide energy for other animals. |
| Surface Runoff | Water flowing over the ground and into lakes, rivers and streams. |
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