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volcano expert
Rett needs to study hard
15
Science
6th Grade
10/05/2011

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Term
Granite
Definition
A usually light-colored igneous rock that is found in the continental crust.
Term
Basalt
Definition
A dark,dense,igneous rock with a fine texture, found in the oceanic crust.
Term
Grains
Definition
the particles of minerals or other rocks that give a rock its texture.
Term
Texture
Definition
the look and feel of a rock's surface, dentermined by the size, shape, and pattern of a rock's grains.
Term
Igneous rock
Definition
A tyoe of rock that forms from the cooling of molten rock at or below the surface.
Term
Sedimentary rock
Definition
A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together.
Term
Metamorphic rock
Definition
a type of rock that forms from a existing rock that is formed by heat, presure, and chemical reactions.
Term
Extrusion
Definition
A igneous rock layer when lava flows on Earth's surface and hardens.
Term
Intrusion
Definition
A igneous rock layer form when magma hardens beneath Earth's surface.
Term
Silica
Definition
A material found in magma that is formed from the elements oxygen and silicon.
Term
Sediment
Definition
Small, solid pieces of material that come from rocks or organisms.
Term
Erosion
Definition
The process by which water, ice, wind, or gravity moves weathered rock or soil.
Term
Deposition
Definition
Process in which sediment is laid downing new locations.
Term
Compaction
Definition
The process by which sediments are pressed together under their own weight.
Term
Cementaion
Definition
The process by which dissolved minerals crystalize and glue particles of sediment together in one mass.
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