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whitten rocks

weathering and erosion

TermDefinition
weathering any process that breaks down rocks and creates sediments
chemical weathering decomposition of rock caused by chemical reactions resulting in formation of new compounds
mechanical weathering physical breakdown of rocks into smaller pieces
erosion process by which natural forces move weathered rock and soil from one place to another
deposition occurs when agents of erosion lay down sediment
agents of erosion water, wind, waves, gravity, glaciers
Igneous rock formed by cooled lava or magma
intrusive cooling takes place slowly beneath earth's surface
extrusive cooling takes place quickly above earth's surface
metamorphic forms when other rocks are changed by heat and pressure
sedimentary rock formed from the compaction of rock pieces, mineral grains, or shell fragments
rock cycle the process where rocks change from one type to another
crystallization how minerals form
streak powder color left behind when a mineral is scratched on a porcelain plate
hardness ability for a mineral to resist scratching
mohs scale scale used to determine hardness
luster mineral's ability to reflect light
ores minerals mined because they contain something of value
fossil fuels natural fuels formed from the remains of living things. They are nonrenewable
Created by: swhitten
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