a type of rock that forms from the cooling of molten rock at or below the surface

A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together

small, solid pieces of material that come from rocks or living things

A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.

to add force or act on in order to cause change

A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another

the place where something comes from; the point where something begins

a naturally occurring solid that can form by inorganic processes and that has a crystal structure and a definite chemical composition

a solid in which the atoms are arranged in a pattern that repeats again and again

relating to living organisms