Here's a breakdown:
* Metamorphism comes from the Greek words "meta" (change) and "morph" (form).
* Heat provides the energy for chemical reactions to occur and for minerals to recrystallize.
* Pressure causes the rocks to become denser and more compact.
Metamorphism can occur in a variety of settings, such as:
* Contact metamorphism: Occurs when hot magma or lava comes into contact with existing rock.
* Regional metamorphism: Occurs over large areas due to the intense heat and pressure associated with tectonic plate collisions.
The resulting metamorphic rocks have different mineral compositions and textures than the original rocks, showcasing the transformation brought about by heat and pressure.