Three Types of Rock: Igneous, Sedimentary & Metamorphic

There are three main types of rock: Igneous, Sedimentary, and Metamorphic.

Igneous rocks are made from melted rock. When magma or lava cools, it becomes solid. Examples: granite and basalt.

Sedimentary rocks are made from small pieces of rocks, sand, or even plants and animals. These pieces form layers, and over time they become rock. Examples: sandstone and coal.

Metamorphic rocks are rocks that change with heat and pressure. They do not melt, but their shape and minerals change. Examples: marble and slate.