[header] How to learn about igneous rocks [title] Recognize how igneous rock is made. [step] Igneous rock forms from magma (also called molten rock). Magma is a liquid that is under the earth. 
When the magma moves to a cooler part of the earth, it loses its heat and crystallizes into an igneous rock. [substeps] Magma is thick and is composed of very hot elements and compounds.