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ROCK CYCLE Classifying rocks In Class 3-2-12 Obj. I will be able to classify rocks as metamorphic, igneous, or sedimentary by the processes of their formation Vocabulary Cementation Compaction Deposition Erostion Foliated Igneous rock Lava Lithification •Magma •Metamorphic rock •Non-foliated •recrystallization •Sedimentary rock •Sedimentation •weathering @Home Study vocabulary Visit stemscopes online Laporteisd.stemscopes.com Auguste science Vocabulary notes cementation - A process whereby compacted sediments bind and stick together and turn into rock compaction - A process whereby sediments pack, crush, and settle under the action of gravity and pressure from overlying layers deposition – the dropping off of eroded materials in a new location erosion – the process of moving sediments by wind, water, ice and gravity foliated – rocks that are composed of thin easily separable layers or bands igneous rock - Rock formed when heated magma or lava cools and hardens lava - A result of molten rock material pushed to Earth’s surface by volcanic action lithification - The compaction and cementation of sediment into rock. magma - Melted rock material beneath Earth’s surface metamorphic rock - Rock deep within Earth’s crust that has been exposed to extreme heat and pressure causing changes to its appearance, structure, and composition non-foliated – rocks that do not have a layered or banded structure. recrystallization - A reaction in which the atoms of existing crystals within a rock are reorganized due to heat and/or pressure. sedimentary rock - Rock formed when sediments deposited in layers, compact and cement together under pressure, over long periods of time sedimentation - The act or process of depositing sediment. weathering – the process of breaking rocks down into sediments Extrusive rocks- Formed when molten rock reaches the Earth’s surface and cools. Intrusive rock- Formed when magma cools underground forming rock Rock cycle