| A | B |
|---|
| watershed | the drainage area for a region; collects and drains all water into a river |
| mountain | region of high elevation and distorted rock, usually metamorphic |
| plateau | region of medium to high elevation and horizontal sedimentary rock |
| plain | region of low elevation and horizontal sedimentary rock |
| escarpment | long ridge of resistant bedrock |
| stream drainage pattern | the pattern of streams that develops because of varying resistance of bedrock |
| physical weathering | rock breaks up and is still the same bedrock |
| chemical weathering | rock breaks up and changes to a different material |
| erosion | moving of rock material by natural agents such as wind, water or glaciers |
| deposition | the process where rock material is dropped |
| abrasion | wearing down of rock by a grinding action |
| striations | long parallel groves in rock and bedrock left by glacial movement |
| glacial till | unsorted glacial deposits |
| esker | long winding ridge formed when sediment in a glacial stream is dropped by a melting glacier |
| drumlin | oval shaped hill formed from moraine deposits; shaped by an advancing glacier |
| kettle | glacial pond formed when a hunk of ice is buried and melts |
| delta | a triangular shaped deposit of sorted sediment at the mouth of a river |
