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Science Notes
The Rock Cycle Notes
| Term | Definition |
|---|---|
| rock | a naturally occurring solid mixture of one or more minerals that may also include organic matter |
| weathering | the process by which water, wind, ice and changes in temperature break down rock |
| sediment | fragments of rock that has been broken down by weathering |
| erosion | the process by which sediment is moved from one place to another |
| deposition | the process by which sediment comes to rest |
| magma | molten rock |
| lava | when magma reaches Earth’s surface |
| igneous rock | forms when magma or lava cools and hardens to become solid |
| sedimentary rock | forms when minerals that form from solutions or sediment from older rocks get pressed and cemented together |
| metamorphic rock | forms when pressure, temperature, or chemical processes change existing rock |
| rock cycle | the series of processes in which rock changes from one type to another |
| uplift | the rising of regions of the crust to higher elevations |
| subsidence | the sinking of regions of the crust to lower elevations |
| rift zone | an area where a set of deep cracks form |