Across
- 2. Ridge that seperates drainage basins
- 4. Artificial lake created by placing a dam across a river
- 5. Water that runs over the earth's surface and flows into streams
- 7. Top of the groundwater layer
- 9. River that joins another river of equal or greater size
- 11. Funnel-shaped depression that results when the roof of a cave collapses
- 12. Place where groundwater flows naturally out of the ground
Down
- 1. Place where hot groundwater and steam blast into the air
- 2. Land area that is drained by a river and its tributaries
- 3. Deep valley on the ocean floor
- 6. Movement of water between the atmosphere and the earth's surface
- 8. Large stream of water flowing oceans, in rivers, and in some large lakes
- 10. Containing many spaces through which air and water can move