science rocks
Terms
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- mineral
- a naturally occuring inorganic solid that has crystal structure and a definite chemical composition
- inorganic
- not formed from living things or remainsof living things
- crystal
- a solid in which the atoms are arranged in a pattern that repeats again and again
- grain
- a particle of mineral of other rock that gives a rock texture
- texture
- the size shape and pattern of rock grain
- igneous rock
- a type of rock that froms from particles the cooling of molted rock at or below the surface
- Sedimentary
- rock a type of rock that forms when particles from other rocks of 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 reaction
- Compaction
- the process by which sediments is pressed together under their own weight
- Rock cycle
- a series of processes on the surfaces and inside Earth that slowly changes rock from one kind into another
- Extrusive rock
- igneous rock that forms from lava on Earths surface
- Intrusive rock
- igneous rock that forms when magma hardens beneath Earths surface
- Rock
- the material that forms Earths hard surface
- Weathering
- the chemical and physical processes that breakdown rock at Earths surface
- Erosion
- the process by which water ice wind or gravity moves fragments of rock and soil