How Rocks Form: Igneous Rocks, Sedimentary Rocks, Metamorphic Rocks

Why Study Rocks? -Many, many uses! – writing tools (chalk, pencils), building materials (marble, concrete), fuels (coal), scouring powder (pumice, sand), weapons (flint, obsidian) Rock: a group of minerals bound together –  Found in the Earth’s crust and mantle The Rock Cycle: the continuous process of rock formation and change – Presents a “map” of the…