BC: END OF ROCK CYCLE
FC: Rock cycle
1: Igneous Rock Igneous rock is formed deep inside the Earth or at volcanic sites.
2: Igneous Rock can also involve things like an obsidian surgical blade, and basalt road construction.
3: Metamorphic Rock forms from squeezing and heating of other rocks.
4: Metamorphic rock can involve pencil lead, a slate roof, and a marble statue.
5: Sedimentary Rock forms from layering of broken pieces of rock that hardens into new rock.
6: Sedimentary Rock involves sandstone headstone, limestone chalk, and a coal train.