12. For igneous rock, when magma cools slowly the crystals…The crystals are lager
13.For igneous rock, when magma cools quickly, the crystals… The crystals are smaller
14.Of the types of igneous rock formed underground, which one is most familiar?Granite
15.When looking at sedimentary particle size, which material type has the largest particles and which has the smallest particles? Sand has largest and clay has the smallest
16.Which metamorphic rock forms under the highest temperature and highest pressure? Gneiss