Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
chap 12 less 1 vocab
| Term | Definition |
|---|---|
| Uniformitarianism | A principal that states that geologic processes that operate today also operated in the past |
| Erosion | The process of wearing down and carrying away rocks |
| Weathering | The process that breaks down rock and other substances |
| Mechanical weathering | The type of weathering in which rock is physically broken into smaller pieces |
| Chemical weathering | The process that breaks down rock through chemical changes |
| Abrasion | refers to wearing away of rock by rock particles carried by water, ice, wind, or gravity |
| Frost wedging | wedges of ice and rocks widen and deepen cracks |
| Oxidation | Iron combines with oxygen in the presence of water |
| Permeable | a material is full of tiny, connected air spaces that allow water to seep through it |
| What breaks down rocks? | Erosion works continuously to weather and carry away rocks at Earth's surface. |
| What causes mechanical weathering? | The natural agents of weathering include freezing and thawing, release of pressure, plant growth, actions of animals, and abrasion. |
| What causes chemical weathering? | The agents of chemical weathering include water, oxygen, carbon dioxide, living organisms, and acid rain. |
| How fast does weathering occur? | The most important factors that determine the rate at which weathering occurs are the type of rock and the climate. |
Created by:
kwinkler
Popular Science sets