miércoles, 20 de octubre de 2010

Summary3!

The rock cycle

Rocks come in many types and have many uses. The rock cycle is an endless process first the magma come out and then change to lava. Then it coules and turne into ignos rock, then pass by weathering and erossion and become  sedimentary rock finally pass by heat and becomes metamorphic rock and melt and become magma.

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