by gavin

hi my name is Gavin O. i am from van meter IA and i'm making a smore project i hope you enjoy

igneous rock forms by

Through the cooling solidification of magma or lava this magma can be derived from partial melts of pre-existing rocks in either a planets mantle or crust.
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Sedimentary rocks are formed by

sedimentation of particles at or near the earths surface and within bodies of water this process causes clastic sediments or organic particles
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metamorphic rocks are formed by

subjecting any rock type sedimentary,igneous or another older metamorphic rock to different temperature and pressure conditions than those in wich the original rock was formed

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Rocks and Minerals.m4v