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26 Cards in this Set
- Front
- Back
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what 2 layers of the earth include the lithosphere
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mantle & crust
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what words are used to describe luster
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glassy, pearly, silky, metallic, & earthy
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what kind of rock is formed by compaction and cementation
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sedimentary rock
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what kind of rock is classified by the presence of bands
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metamorphic rock
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what kind of sedimentary rock is fromed from the remains of plants and animals
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organic rock
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what do geoligists do
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study physical conditions, such as temperature and pressure, inside Earth. They also study the forces inside Earth that affect the surface
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what seismic waves are
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vibrations that travel through Earth every time an earthquake shakes the ground
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what slow, bends or reflects seismic waves as they travel through Earth
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by different structures
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the thinnest layer of Earth
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crust
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what 2 metals make up Earth's core
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iron & nickel
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the characteristics of a mineral
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solid*inorganic*naturally occuring*crystal structure*definite*chemical composition
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what Moh's hardness scale can tell you
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It rates the scale from 1 to 10 on hardness
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when many minerals form....
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motlen material cools & hardens. other materials form when materials dissolved in water come out of solution
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how is halite formed
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when a solution evaporates on Earth's surface
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the definition of a gemstone
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a mineral that is valued for its beautiful color, hardness, and glassy luster
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what mineral is an important ingredient in fertilizers
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sulfur
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the major groups of rock
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sedimentary, metamorphic, igneous
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the process that results in the formation of igneous rock......
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igneous rock forms when magma or lava cools or hardens
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what does extrusive mean
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igneous rock that forms from lava on Earth's surface
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what type of rock is sandstone classified as
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sedimentary rock
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how can you classify metamorphic rocks into 2 groups
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banded & nonbanded
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what does intrusive rock form as
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quartz, feldspar, mica, and horneblende
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what physical conditions do geologists study inside Earth
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temperature & pressure
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what are earthquakes
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the shaking that results from the movement of rock beneath Earth's surface
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what layer of Earth sometimes flow to the surface through volcanoes
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mantle
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what are the uses of gemstones
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jewelry & fine machine parts
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