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The Rock Cycle
These flashcards will help you in becoming familiar with information on the rock cycle.
39
Science
6th Grade
09/28/2014

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Term
Rock
Definition
A mixture of minerals, volcanic glass, organic matter, or other material
Term
Rock Cycle
Definition
A model showing processes that create and change rock.
Term
Sedimentary Rock
Definition
Formed when sediments are pressed and cemented together.
Term
Metamorphic Rock
Definition
Formed when a rock goes under extreme heat and pressure.
Term
Igneous Rock
Definition
Formed for the cooling and hardening of magma or lava.
Term
Conservation of matter
Definition
The rock cycle never destroys elements of rock but merely redistributes them.
Term
James Hutton
Definition
The father of the rock cycle.
Term
Lava
Definition
Magma from a volcano that reaches Earth's surface.
Term
Intrusive igneous rock
Definition
Large-grained igneous rock forms when magma cools below the surface.
Term
Extrusive igneous rock
Definition
Small-grained igneous rock forms when magma cools at or near the Earth's surface.
Term
Balsaltic igneous rocks
Definition
dark-colored and dense igneous rock that is mostly likely to be found near the ocean floor.
Term
Basaltic Rock
Definition
Contain Fe and Mg but very little silica
Term
Granitic igneous rock
Definition
Lower in density and lighter in color
Term
Granitic Igneous Rock
Definition
Contains more silica and less Fe and Mg
Term
Granitic Magma
Definition
stiff and thick
Term
Andesitic Rocks
Definition
Balanced composition of minerals and density
Term
Crystal size
Definition
can help identify and igneous rock as intrusive or extrusive
Term
Pumice
Definition
Igenous rock with holes around once trapped air and other gases
Term
Basaltic, granitic and andesitic
Definition
Types of magma
Term
Intrusive and Extrusive
Definition
Two ways that igneous rocks are classified
Term
Metamorphic Rocks
Definition
Change from the heat and pressure caused by one layer rock on top of another rock.
Term
Metamorphic rock
Definition
Can change as a result of hot, water-rich fluids moving through rock, chemically changing it.
Term
Foliated and Nonfoliated
Definition
Two ways to classify metamorphic rocks
Term
Metamorphic rock
Definition
classified by the composition and texture
Term
Foliated texture
Definition
Mineral grains flatten and line up in parallel layers of bands
Term
Nonfoliated texture
Definition
Mineral grains grow and rearrange but do not form layers
Term
Sedimentary Rocks
Definition
Mostly found exposed on Earth's surface
Term
Sediments
Definition
Layers of rocks, fragments, mineral grains, organic matters
Term
Sedimentary Rock
Definition
Classified by what they are made of and how they are formed.
Term
Compaction
Definition
Occurs when small sediments stick together because of pressure
Term
Cementation
Definition
Occurs when water and other minerals move through open spaces between larger sediments gluing them together
Term
Detrital Sedimentary Rocks
Definition
Made from broken fragments of other rocks and often have a granular texture
Term
Chemical Sedimentary Rock
Definition
Limestone and rock salt are two examples
Term
Limestone
Definition
Forms from calcite, which was calcium carbonate in solution
Term
Rock Salt
Definition
Formed from halite, which was salt in solution
Term
Organic Sedimentary Rock
Definition
Made from remains of once-living plants or animals
Term
Chalk
Definition
Made of microscopic calcite-shell remains of animals
Term
Coal
Definition
Made of plant remains, chemically changed by microorganisms and compacted over million of years
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