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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 |