6th grade ROCKS - SMS
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| term |
 |
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| definition |
|
|
| rock |
formed from one or more minerals |
| Igneous rocks |
rocks formed from molton earth materials |
| Extrusive Igneous rocks |
formed by molton rockon the earths surface; when magma comes out of a volcano then cools and hardens |
| Intrusive Igneous rocks |
formed from molton rock cooling within the earth's crust |
| sedimentary rocks |
formed by weathering and deposition |
| Clastic sedimentary rock |
sedimentary rock made of rock fragments, minerals, and broken shells |
| Non-clastic sedimentary rock |
sedimentary rocks that are formed from solutions or by organic processes |
| metamorphic rocks |
formed by changes in pre-existing rocks cuased by extreme temps, pressure or both |
| wind |
erosion agent that is likely in a flat plain with little rain |
| Appalachian Mountains |
location where mass wasting is most likely to occur |
| cooling & hardening |
processes that allow magma or lave to form into igneous rock |
| heat & pressure |
processes that allow sedimentary rock to form into metamorphic rocks |
| weathering & erosion |
processes that allow rocks to turn into sediments |
| chemical weathering |
breaking down rocks by changing their composition |
| erosion |
moving of earth materials from one place to another |
| glacial deposition |
when glaciers leave behind earth materials |
| glacial erosion |
earth material moved downhill by an ice sheet |
| glaciers |
large mass of ice sliding over the earth's surface |
| groundwater |
water that has seeped into and beneath the soil |
| mass wasting |
large amounts of rocks pulled downhill by gravity |
| physical weathering |
breaking down rocks by only changing the size |
| rock cycle |
the orderly processes which form and change rocks |
| soil |
a mixture of weathered rock & decayed organic matter |
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