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the rock cycle

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on 21 November 2013

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Transcript of the rock cycle

the rock cycle
by;
Isabella Araoz
Igneous rocks can be formed underground or overground. When formed underground, igneous rocks are formed when a melted rock called magma (or lava) starts to cool. But when an igneous rock is formed on the surface, it is called extrusive. Otherwise its is called instrusive
When adding heat and/or pressure, an igneous rock becomes an metamorphic rock
Metamorphic rock
Igneous rock
rocks that have morphed into a different type of rock is a metamorphic rock. Metamorphic rocks take up most of the earths crust also. they can also be formed when the rock is heated up by the intrusion of the hot rock called magma (or lava)
When metamorphic rocks start melting they turn into magma, but when magma takes a solid form it becomes and igneous rock. When an igneous rock starts weathering and erosion happens, it turns into sediments.
Sediments
sediments are broken down by weathering and erosion erosion. They are usually transported by wind or water.
Sedimentary rocks
sedimentary rocks are formed when sediments accumulate together.some examples of sedimentary rocks are:
-limestone
-sandstone
-conglomerate
Full transcript