| A | B |
|---|
| weathering | process that breaks down rock & other substances |
| erosion | removal of rock particles by wind, water, ice or gravity - Earth's surface is worn down |
| deposition | sediment is laid down - Earth's surface is built up |
| 2 rate of weathering factors | Type of rock (some minerals dissolve easier than others & some rocks have tiny air spaces so water seeps in) & climate (hot & wet - increases rate of weathering) |
| 5 agents/causes of erosion | gravity, running water, glaciers, waves & wind |
| U-shaped valley | cut by a glacier |
| V-shaped valley | cut by a river |
| examples of weathering | ice wedging, plant growth, water, oxygen, carbon dioxide, acid rain- acid, acid rain |
| uniformitarianism | same process that operated in past operate today |
| permeable | material is full of tiny air spaces/holes |
