| A | B |
|---|
| mechanical weathering | break down of rocks without changing the chemical composition. |
| chemical weathering | weathering in which the chemical compositions is altered & changed |
| Ice-Wedging | Mechanical weathering in which water freezes in the cracks of rocks, expands, and breaks the rock. |
| oxidation | chemical weathering due to exposure to water & oxygen. Can form rust. |
| Erosion | When broken pieces of sediment is carried away. |
| plant-animal action/temperature change/water-wind action | other forms of mechanical weathering |
| soil | mixture of weathered rock & organic matter |
| Deposition | When broken pieces of sediment are dropped off. |
| humus | decayed organic matter of upper layer |
| abrasion | gravity-wind-water causes rocks to rub against each other |
| parent rock | original rock that breaks up to form soil |
| forest soil | made of podsol/not fertile because of thin topsoil |
| prairie soil | fertile & very productive soil/heartland region of U.S. |
| grassland soils | a whitish look containing calcium with thick topsoil& decaying plants |
| deserts soils | has very little organic matter & rich in minerals |
| mountains soils | rocky & thin usually on incline containing weathered chunks of rocks |
| tundra soil | waterlogged & have layers of undecayed plant material |
| tropical soils | thick layers of leached clays, rustly red in color |
| Carbonic Acid | When water mixes with carbon dioxide it forms? |
| Tannic Acid | An acid formed from the roots of some plants that dissolve rock. |
| Tropical Regions | An area where soil can develop rapidly because of the warmth and moisture. |
| Lichens | A small organism that consists of alga and fungus that can break rock down. |
