The process in which rocks change shape is called deformation.

Here's a breakdown:

* Deformation refers to any change in the shape or volume of a rock. This can happen due to various forces, like:

* Stress: Forces acting on a rock from its surroundings.

* Strain: The resulting deformation of the rock due to stress.

There are three main types of deformation:

* Elastic deformation: The rock returns to its original shape after the stress is removed.

* Ductile deformation: The rock permanently changes shape, often through folding or bending.

* Brittle deformation: The rock breaks or fractures under stress.

Let me know if you'd like to learn more about any of these types of deformation!