Saturday, October 27, 2012
Rock types
Rock cycle
Rock cycle : the natural process in which rocks transform one type into another rock type over time. Example sedimentary rock change into Igneous rock by undergoing melting and then solidifies . Metamorphic rock becomes an Igneous rock by lava melting the rock and then peace of rocks and sediment are pushed together to form an Igneous rock.Igneous rock become a metamorphic rock by going under heat and pressure . Sediment are formed by weathering and erosion. Rock become an igneous rock by two types intrusive and extrusive.
Metamorphic rock: Rock altered by pressure and heat.
Magma: Hot liquid inside .
Lava:Hot liquid outside.
Solidification :The process of become hard by cooling or drying
Igneous rock :Rock formed by solidification of molten magma.
Weathering: The process of which materials are broken down either physically or chemically.
Erosion : The process of movement to carry thing away.
Sediment : Hard materials lying in the top of a solid rock.
Compaction : An icrease the density of something.
Cementation: Glue together of particles or other thing by cements.
Sedimentary rock: Formed by deposition of material at the earth's surface and whitin bodies of water.
Tuesday, October 23, 2012
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