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SC 4th
Test 1
| Term | Definition |
|---|---|
| Source | is where a river begins |
| Riverbanks | are the sides of a river |
| Riverbed | is the bottom of the river |
| Mouth | is where a river meets a lake, valley, or ocean |
| Delta | is a landform at the mouth of a river made by the sand, silt, soil, and rocks deposited by moving water |
| Deposition | the process in which water, wind, or ice builds up the earth's surface by dropping sediment in new locations |
| Erosion | the process in which gravity, water, ice and wind move sediments from one place to another on the earth's surface |
| landform | a part of earth's surface that has a unique shape, is easy to recognize and was created by nature |
| model | an object that represents something that is similar to the real thing in many ways but is different in some ways |
| weathering | a process by which rocks and sediment break down over time due to exposure to wind, rain or other weather conditions |
| Abrasion | the grinding down of rock by another |
| Glacier | A large, long-lasting mass of moving ice and snow. Glaciers move down hills or outward in directions as a result of gravity and their immense weight. They retreat (shrink) as a result of melting. |
| Erratic | A large moved object moved and dropped by a glacier far from where it originated |
| Moraine | Hill like piles of unsorted rocks and deiment dropped by a glacier |
| Rock pillar | a tall column of rock |
| hoodoo | a strangely shaped rock formation usually scupted by water erosion |
| mushroom rocks | rock formations that are narrow on the bottom base and wider at the top |
| wind | air that is in motion over the surface of the earth |
| drought | extremely dry weather for a long period of time with little or no rain fall. They usually cause water shortages. |
| sand dune | a hill of loose sand formed by wind |
| soil | a mixture of rock sediment and organic material including living and dead plants, insects and bacteria |
| stabilize | to keep from moving |
| windbreak | an object or material such as a fence or row of trees that block the path of wind |
Created by:
kschlichte
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