Rocks and how they are formed...
The different processes of sedimentary rocks being formed are:
Sedimentation - Where deposited rocks build up into layers called sediments.
Compaction- Where the layers of rock are compacted together into rocks
Cementation- Where the crystals form a glue that stick the pieces of rock together
The order of these processes goes: Sedimentation-Compaction-Cementation
Some examples of common igneous rocks are: