| Term | Definition |
|---|
| weathering | the process of wearing down or breaking down rocks into smaller pieces |
| physical weathering | weathering that changes the shape and size of rocks without changing the physical makeup of the rock |
| chemical weathering | weathering that changes the mineral composition of rocks |
| erosion | the process of moving weathered rock from one place to another |
| deposition | the process of depositing (dropping) sediment |
| sediment | small pieces of weathered rock such as gravel, sand, or pebbles |
| delta | triangular shaped deposit of sediment formed at the mouth of a river |
| mass movement | downhill movement of weathered material (sediment) due to gravity |
| glacier | slow moving river of ice |
| moraine | landform made of deposits of soil, rocks (sediment) left by a glacier |
| Ice Age | period of time when much of the Earth was covered by glaciers |
| stalactite | mineral formation that forms on the ceiling of a cavern |
| stalagmite | mineral formation that forms on the ground of a cavern |
| column | mineral formation that forms when a stalagmite and stalactite join |
| constructive force | type of force that biuds features on teh Earth's surface, alters the crust and changes its form, or adds material from below the crust to the crust itself |
| destructive force | type of force that destroys rock through weathering, erosion, or violent forces such as an earthquake |
Combine with other sets
Share on Facebook
Share on MySpace
!