Earth’s Constructive & Destructive

3. current A rush of water that flows rapidly back to sea through a narrow opening in a sandbar.
7. The land area that supplies water to a river system.
8. flood A sudden, violent flood that occurs with a few hours, or even minutes,of a storm.
12. A looplike bend in the course of a river.
13. The grinding away of rock by other rock particles carried in water, ice, or wind.
14. interval The difference in elevation from one contour line to the next.
16. A landform made of sediment that is deposited where a river flows into an ocean or lake.
17. The process by which water, ice, wind, or gravity moves weathered rock and soil.
19. Wedging Process that splits rock when water seeps into cracks, they freezes and exapands.
20. Dune A deposit of wind-blown sand.
21. Wave-washed sediment along a coast.
22. line A line on a topographic map that connects points of equal elevation.
23. movement Any one of several processes by which gravity moves sediment downhill.

1. Water that flows over the ground surface rather than soaking into the ground.
2. Wind erosion that removes surface materials.
3. The difference in elevation between the highest and lowest parts of an area.
4. Earth materials deposited by erosion.
5. A large mass of moving ice and snow on land
6. weathering The process that breaks down rock through chemical changes.
9. A long ridge formed by deposits of sediments alongside a river channel.
10. A wall made of rocks or concrete that is built outward from a beach to reduce erosion.
11. plain Wide valley through which a river flows.
15. drift The movement of sand along a beach.
16. Process in which sediment is laid down in new locations.
18. weathering The type of weathering in which rocks is physically broken into smal Lake bow lake A meander cut off from a river.