level: 8Hc Weathering and Erosion
Questions and Answers List
level questions: 8Hc Weathering and Erosion
| Question | Answer |
|---|---|
| When a rock is repeatedly experiencing weather changes what happens to it? | When the rock is heated, it expands and contracts when it cools, this can cause cracks to form if this action is repeated over and over again. |
| When water gets into rocks what happe ns? | Water expands as it freezes, forcing the cracks to expand. This is called freeze-thaw action |
| What happens when plant roots get into the cracks of rocks? | The roots cause the cracks to get wider and then the rock eventually breaks in half. |
| What happens during erosion? | Pieces of rock get broken up by weathering when they get moved away. This is called erosion. |
| What is abrasion? | Abrasion is when the rock segments knock against each other and wear down, due to the friction. |