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In short, the rock cycle is the name for the processes that forms and recycles the different types or rocks on our planet. Rocks begin the cycle as igneous rocks, erode into sedimentary rocks then change into metamorphic rocks, finally the rocks melt back to magma and start the process again.
Rock Cycle: The Marriage of Water and Rock. Everything in the Biosphere is part of one system, so Rock Cycles could be discussed under Circles as well as under Biosphere. The Water Cycle and the Rock Cycle are closely interlinked, as if they were partners in a long marriage. Everything really is connected to everything else. The creation and movement of rock around the earth is the rock cycle. It is a very slow process that happens over millions and millions of years. People have been finding fossils of ocean creatures high up in the mountains for hundreds of years. How they got there was once a great mystery of science.