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Earth Science Unit 3
Weathering Vocabulary
| Question | Answer |
|---|---|
| Define weathering | The breaking down of rock at Earth’s surface |
| What are the two types of weathering? | Mechanical and Chemical |
| What is the process for mechanical weathering? | Rocks are broken down into smaller pieces by external conditions or physical means! |
| What happens to the chemical make-up of a rock during mechanical weathering? | The chemical make-up stays the same. |
| What happens to the characteristics of a rock after during weathering? | If the chemical make-up stays the same the characteristics stay the same as the original rock. |
| What are the four types of mechanical weathering? | I- Ice A- Abrasion P-Plants A-Animals |
| What are four other terms that may be used for mechanical weathering? | F- Frost Action F- Friction G- Growth A-Actions |
| Define Frost Action. | The alternate freezing and thawing of soil and rock. |
| What is Ice Wedging? | Repeated process that splits rock when water seeps into cracks, then freezes and expands, causing pieces to break off. |
| Define Abrasion (Friction). | the grinding away (wearing down) of rock by other rock particles (pieces) carried in water, ice, gravity or wind |
| How do plants affect mechanical weathering? | Roots of plants grow into cracks & widen as they grow. |
| How do animals affect mechanical weathering? | Animals that burrow or dig loosen & break apart rocks in the soil. |
Created by:
ms_h2os
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