1. 7 TH GRADE SCIENCE METAMORPHIC ROCKS

2. 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