Cementation - A natural process where by rocks are in, Ore - The way that living things change over time., Alloy - A combination of a metal with other types of metal or elements, Lava - The preserve remains of an animal or a plant which has hardened into rocks, Fossil - A process by which dissolved minerals among sediments crystallize and stick the sediments together., Evolution - A rock that contains a useful metal or valuable mineral., Magma - Molten rock that flows from a volcano., Weathering - The wearing down and removal of rocks and soil by natural processes., Geology - The study of the earth including the rocks and soil, Erosion - Hot molten rock,

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