| A | B |
|---|
| chemical weathering | weathering that involves changes in the chemical makeup of rocks |
| mecahnical weathering | weathering that does not involve the chemical makeup of rocks |
| exfoliation | the breaking of rocks off of curved sheets or slabs parallel to a rock's surface due to weathering |
| abrasion | the wearing away of a substance by solid particles carried by wind, water, or other forces |
| oxidation | the process in which oxygen chemicallly combines with another substance |
| dunes | built up sand blown by wind (mostly happens in deserts and beaches |
| wind | wind can carry and deposit rock and soil particles based on its speed |
| running water | water carries rock and soil particles and wears them away by hitting each other |
| root-pry | the breaking apart of rocks caused by the growth of plant roots |
| gravity | gravity pulls rocks down cliffs causing them to break whent they hit other rocks |
| organic activity | plants and other living things |
| water | water can dissolve most of the minerals that holds a rock together |
| temperature | rocks expand in heat and contract in cold this wears away at the rock |
| frost action | rocks can break apart by water freezing and expanding in the cracks |
| erosion | the process by which the products of weathering are moved from one place to the next |
| run-off | run-off is the rock or soil particles carried by running water |
| drainage system | the network of streams and running water that drain into a main river |
| drainage basin | the area drained bya main river and its channels |
| flood plains | a flat area made by water when it floods over the rivers embankment |
| delta | a formation of sediments deposited at the mouth of a large river into a ocean |
| rill | a small stream |
| guille | a deeper wider rill |
| streams | are larger guilles that can carry a large amounts of sediments |
| rivers | rivers are larger than streams that can carry a large of sediments |
| glaciers | a large mass of moving ice and snow |
