Understanding Metamorphic Rocks in 7th Grade Science

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Metamorphic rocks are formed deep beneath the Earth's surface through heat and pressure, leading to changes in the rock's structure. Geologists classify these rocks based on grain arrangement into foliated (layered) and nonfoliated (random). Examples include slate, schist, gneiss, marble, and quartzite.


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  1. METAMORPHIC ROCKS 7THGRADE SCIENCE

  2. METAMORPHIC ROCKS Metamorphic Means to Change Form

  3. METAMORPHIC ROCKS Heat and pressure deep beneath the earths surface can change any rock.

  4. METAMORPHIC ROCKS Geologists classify metamorphic rocks according to the arrangement of the grains that make up the rocks

  5. METAMORPHIC ROCKS Foliated Rocks Metamorphic rocks that have their grains arranged in parallel layers or bands (foliated) which means thin flat layering found in most metamorphic rocks Slate, schist, gneiss

  6. METAMORPHIC ROCKS Nonfoliated rocks Mineral grains are arranged randomly. Do not split into layers Marble and quartzite

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