| A | B |
|---|
| Chemical Weathering | The process of weathering that breaks down rock through chemical processes. The mineral composition changes. |
| Ice wedging | Water freezes and thaws |
| Abrasion | Mechanical weathering when rock is work away by the grinding action of other rock particles. |
| Oxidations (oxygen) | A chemical change that causes iron rich rocks to become soft and a reddish brown color. |
| Bedrock | Soil formation begins in this layer |
| Creation of soil | Developed over thousands of years |
| Permeable | A material that has spaces or pores in it, allowing water to pass through. Permeable rock weather easily becuase of the small airspaces. |
| Hot and wet climate | Weathering will take place quickly |
| Humus | High fertility |
| Humus | Earthworms add their waste to help create |
| Living organisms | Mix the soild and make humus (earthworms) |
| Soil | Helps plants grow |
| Decomposers | helps to break down and digest the remains of dead organisms. |
| Mechanical weathering | A type of weathering in which rock is physically broken into smaller pieces but the composition of the rock is the same. The growth of plant roots and animal activity are a form of mechanical weathering. |
| Loam | Almost equal amounts of silt, sand and clay |
| Loam | Found in the A Horizon |
| Granite | Will last a long time when there is not much freezing and thawing |
| Soil size | Will determine how much air and water the soil can hold. |
