rocks ccomposed of minerals natural occurring and have a chemical formula ○e○ex. quartz is sio 2...
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ROCKS AND WEATHERING
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Rocks
composed of minerals natural occurring and have a chemical
formula○ ex. quartz is SiO2
rock cycleprocesses where rock changes from one form to
another○ igneous, sedimentary, and metamorphic
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igneous- molten rock cools and solidifies
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sedimentary- sediments are compacted and converted to rock by the process of lithification.
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metamorphic- existing rocks changed by heat and pressure
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Weathering and Erosion - breaking rocks apart
Physical (mechanical) weatheringglaciers moving, water (ice) expanding, wind, and
plant rootserosion: wind and water can loosen and move
sedimentdeposition: the sediment then builds up
somewhere else Chemical weathering
O, H2O, and CO2 chemically react with many minerals forming new compounds
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