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Unit 6 & 7
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. |