Study Spot
Customized learning paths based on interests
The three types of rocks Igneous — they form from the cooling of magma deep inside the earth. ... Metamorphic — they are formed through the change (metamorphosis) of igneous and sedimentary rocks. ... Sedimentary — they are formed through the solidification of sediment.
The three main types, or classes, of rock are sedimentary, metamorphic, and igneous and the differences among them have to do with how they are formed. Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material.