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Rocks Chapter 5
Rocks chapter 5 prentice hall science explorer
Term | Definition |
---|---|
texture | the look and feel of a rock's surface |
grain | A particle of mineral or other rock that gives a rock its texture |
igneous rock | A type of rock that forms from the cooling molten rock at or below the surface. |
sedimentary rock | A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together. |
metamorphic rock | A type of rock that forms from an existing rock that is changed by heat, pressure or chemical reactions. |
extrusive rock | Igneous rock that forms from lave on Earth's surface. |
intrusive rock | Igneous rock that forms when magma hardens beneath Earth's surface. |
sediment | Small, solid pieces of material that comes from rocks or organisms. |
erosion | The destructive process in which water or wind loosen and carry away fragments of rock. |
deposition | The process by which sediment settles out of the water or wind that is carrying it. |
compaction | The process by which sediments are pressed together under their own weight. |
cementation | The process by which dissolved minerals crystallize and glue particles of sediment together into one mass. |
foliated | Term used to describe metamorphic rocks whose grains are arranged in parallel layers or bands. |
rock cycle | A series of processes on the surface and inside the Earth that slowly change rocks from one kind to another. |