Surface Water

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ACROSS
1. _____ erosion. The process by which small streams erode away the rock or soil at the head of a stream. This lengthens the stream.
3. _____ lake. A blocked-off meander.
8. The triangular deposit that forms where a stream enters a large body of water.
10. _____ level, the elevation at which a stream enters another stream or body of water.
12. A depression in the surface materials of a landscape that collects and holds water.
14. The steeper the _____, the faster the water flows.
15. All the materials that the water in a stream carries.
16. Sand, pebbles, and cobbles that the stream’s water can roll or push along the bottom of the stream are its _____ load.
17. _____ capacity. The ability of a stream to transport material.
21. Stream _____. When a stream erodes its way through the high area separating two drainage basins, joins another stream, and then draws away (or captures) its water.
25. A _____ occurs when water spills over the sides of a stream’s banks onto the adjacent land.
26. Particles, such as silt, clay, and sand, that are carried in suspension are part of a stream’s _____ load.
27. All particles small enough to be held up by the turbulence ofa stream’s moving water are carried in _____.
28. The broad, flat area that extends out from a stream’s bank and is covered by excess water during times of flooding.
29. The decay process that occurs after plants and animals die uses up dissolved _____ supplies.
 DOWN
2. During _____, an old stream actively resumes the process of downcutting toward its base level (because the land is uplifted or the base level drops).
4. All of the land area whose water drains into a stream system. Also called a drainage basin.
5. _____ fan. A delta-like deposit in dry regions, where mountain streams commonly flow down narrow valleys onto broad, flat, valley floors.
6. The ground bordering the stream on each side.
7. _____ may form on the bottoms of streams where pebbles have continued to swirl around in one area.
8. The volume of stream water that flows over a particular location within a given period of time.
9. A bend or curve in a stream channel caused by moving water.
11. Carrying capacity depends on both the _____ (speed) and the amount of water moving in the stream.
13. Smaller streams that flow into larger streams or rivers.
18. Water flowing downslope along Earth’s surface.
19. A land area that is covered with water for a large part of the year (bogs, marshes, and swamps).
20. A high land area that separates one watershed from another.
22. The rubbing, scraping, and grinding against one another or against the solid rock of the stream bed (the wearing away of solid Earth material).
23. Material is carried in _____ after it becomes dissolved in a stream’s water.
24. Moving water carves a narrow pathway, called a stream _____, into sediment or rock.

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