Rocks

​ ***ROCKS***

- **Igneous rock** is formed by magma cooling and becoming solid. Igneous rock may form with or without crystallization, either below the surface as intrusive rocks or on the surface as volcanic rocks.

- **Sedimentary rock** is formed by sedimentation of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral or organic particles to settle and accumulate or minerals to precipitate from solution.

- **Metamorphic rock** may be formed simply by being deep beneath the Earth's surface and it makes up a large part of the Earth 's crust. It is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism , which means "change in form".

** *PICTURES*

Igneous rock

Sedimentary rock

Metamorphic rock **