Major Types of Rocks-Sedimentary-Igneous-Metamorphic

Learn about the three major types of rocks. Sedimentary ,Igneous, and metamorphic.
Sedimentary rocks are the result of sediments being subjected to pressure. Over time this sediment can be pressed into a rock.
Igneous rocks are "fire born" and are a result of molten rock cooling on either the surface or inside the Earth.
Metamorphic rocks are a result of heat and pressure.