| A | B |
|---|
| gravity | it can pull rocks down a mountian side |
| exfoliation | when particles of a rock break or flake off |
| temeperature | a way of telling what the weather it like |
| chemical weathering | the actual chemical structure of the rock is changed,minerals can be added or taken away |
| abrasion | wind blown sand can cause mechanical weathering of rocks |
| oxidation | the process in which oxygen chemically combines with other substances. |
| mechanical weathering | temperature changes cools down due to temperature changes it expands and contracts |
| frost action | when water gets inside the cracks of a rock and freezes,forcing the rock to break |
| depostiton | the process by which sediments are liad down in location,how new lands are created |
| erosion | the process by which weathered rock and soil are moved from one place to another. |
| mud flow | occurs after heavy ran,rain mixes with soil to for myd slides down a hill taking anything in path,boulders and houses. |
| wind | the most active agent of erosion,in deserts in plowed fields and on beaches |
| oasis | wind that erodes desert sands down to the depth where water is present trees shrubs and grasses are avaliable |
| dunes | in desert areas shorelines windblown sand often deposited near rocks and bushes,wind blowing over these deposits blown down more sand arow for sand dunes |
| loess | many layers of fine sand and silt form these depostits which are very fertile |
| wind break | formed fences or rows of these bushes to slow down the wind to help reduce erosion caused by wind. |
| deflation | is erosion caused by the wind removing loose materials such as clay,silt and sand from the land |
| root pry | plants or roots growing in the rocks can move the cracks larger and eventually causte the rock to break |
| glaciers | a large mass of moving ice and snow |
| drainage system | network of rills quillies streams and rivers in an area |
| drainage basin | the total area drained all rivers in an area |
| waves | erode and shake the shoreline |
| sea stack | columns of resistant rock left standing when all that was around is eroded away |
| beaches | form from eroded rock particles that buylid up in one location |
| sea caves | hollowed out portion of a sea cliff,soft part wears away |
