Rock facts

Coal is hard and black,It's also some kind of mineral.It's the most common mineral,It's used all over the world for energy.Coal is mostly used to make material and steel.

A mineral is a natural solid material but it's definitely not alive. Minerals always have the same ingredients every time,like chocolate chip cookies.

When rocks melt they normally turn into magma.Rock have been around for billions years.There are over 4.dto5 billion rocks in the  world.Mountains are made of rocks and rocks are formed by layers small particles.They are together and formed into sedimentary rocks.Sedimentary rocks are the most common rocks in the world.Mountains are made because rocks crusts push up and form mountains.

By Jack