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Chapter 7
The rock Cycle Vocabulary
| Question | Answer |
|---|---|
| Weathering | The breaking down of Earth's surface into pieces. |
| Mineral | A solid substance that occurs naturally in rocks or in the ground. |
| Humus | The remains of decayed plants and animals. |
| Erosion | The process of moving sediment to other places. |
| Rock cycle | The changing of rocks over time. |
| Horizon | A layer of soil. |
| Bedrock | The bottom layer of soil. |
| Igneous | The type of rock that forms when melted rock cools and hardens. |