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Science--4

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Terms in this set (17)

Rock
a naturally occurring solid mixture of one or more minerals or organic matter
Rock Cycle
the series of processes in which a rock forms, changes from one type to another, is destroyed, and forms again by geological processes
Erosion
the process by which wind, water, ice, or gravity transports soil and sediment from one location to another
Deposition
the process in which material is laid down
Composition
the chemical makeup of a rock; describes either the minerals or other materials in the rock
Texture
the quality of a rock that is based on the sizes, shapes, and positions of the rock's games
Intrusive igneous rock
rock formed from the cooling and solidification of magma beneath the Earth's surface
extrusive igneous rock
rock that forms as a result of volcanic activity at or near the Earth's surface
Strata
layers of rock
Stratification
the process in which sedimentary rocks are arranged in layers
Foliated
the texture of metamorphic rock in which the mineral grains are arranged in planes or bands
Nonfoliated
the texture of metamorphic rock in which the mineral grains are not arranged in planes or bands
What two ways do scientists use to classify rocks?
composition and texture
Compare and Contrast uplift and weathering
Uplift-movement within the Earth that causes rocks inside the Earth to be moved to the Earth's surface
Weathering-process of wind, ice, rain and heat
What are the three main classes of rock?
igneous, sedimentary, metamorphic
List four processes that change rock from one type to another
weathering, erosion, deposition, heat and pressure pg. 94
What happens in the process of stratification?
process in which sedimentary rocks are arranged in layers
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