Sara studied 8 rocks over 3 days as part of a school project where she had to pretend to be a geologist. 7 of the rocks were igneous rocks formed from cooling magma and lava, while the other rock was metamorphic, formed under heat and pressure. Sara created a power point to document her 3-day study of the rocks and identification of them as either sedimentary, metamorphic, or igneous based on their formation.