1. Watershed By: Taniya Crews

2. Watershed The land area that supplies water to a river system.

3. Tributary A stream that flows into a larger stream.

4. conservation The process of using a resource wisely so it will not be used up.

5. Landform A feature of topography formed by the processes that shaped earth’s surface.

6. runoff Water that flows over the ground surface rather than soaking into the ground.

7. Estuary A coastal inlet or bay where fresh water mixes with salty ocean water.

8. river A large stream.

9. Water quality The degree of purity of water determined by measuring the substance in water or living things that depend on the water.

10. Flood plain A broad, flat valley through which a river flows.

11. erosion The process by which of water, ice,wind,gravity moves fragment of rock and soil.

12. Reservoir A natural or artificial lake that stores water for human use.

13. Abiotic Physical rather than biological; not derived from living organisms.

14. Biotic Relating to or resulting from living things.

15. wetland An area of land that is covered with a shallow layer of water during some or all of the year.

16. Topography The shape of the land determined by elevation, relief, and landforms.

17. Topographic map A map that shows the surface features of an areas.

18. Contour plowing Plowing fields along the curves of a slope to prevent soil loss.

19. Crop rotation The planting of different crops in a field each year.

20. stream A channel through which water is continually flowing downhill.

21. divide A ridge of land that separate one drainage basin or watershed from another.

22. Drainage basin The land area from which a river and its