Here's why:
* Magma: Molten rock found beneath the Earth's surface.
* Cooling: As magma rises towards the surface or intrudes into cooler rock, it starts to cool down.
* Crystallization: As the magma cools, the atoms within it slow down and begin to bond together, forming solid crystals.
* Igneous Rocks: Rocks formed from the cooling and solidification of magma or lava (magma that has erupted onto the Earth's surface).
So, the process of crystallization from cooling magma is a fundamental part of how igneous rocks are formed.
