Metamorphic rock forms through a process called metamorphism.
Most rocks are made up of minerals.
During metamorphism, minerals in a rock react to form new minerals. This reaction happens because of high temperature, high pressure, or bot. When new minerals are formed, a new metamorphic rock is created.
For example, schist is a type of metamorphic rock. Schist forms when shale, a type of sedimentary rock. undergoes metamorphism.
Select all the statements that are true about shale and schist.
High temperature and pressure can change shale into schist.
Minerals in shale react to form new minerals in schist.
Shale and schist are both types of metamorphic rock.