A rock that was sediment, then went under pressure, then was melted down and crystalized or cooled inside a volcano is this type of rock.
What is an igneous rock?
Sandstone (sedimentary) must go through this to become Quartzite (metamorphic).
What is heat and pressure?
The breaking down or dissolving of rocks and minerals on the surface of the Earth by water, ice, wind, and plants.
What is weathering?
This is formed when clay goes under a lot of heat and pressure.
What is slate (metamorphic rock)?
Sedimentary rocks get their name from this, the substance they are made of.
What is sediment?
This type of igneous rock is made when magma comes out of the Earth.
What is extrusive igneous rock?
This type of rock is formed from dead trees and plants.
What is fossils/organic rock?
What type of plate boundary, (convergent, divergent, or transform) are metamorphic rocks commonly formed at?
What are convergent boundaries?
A rock with many layers that is formed through the pressure of the higher layers weighing down on the lower layers.
What is sedimentary rocks?
Foliated metamorphic rocks get their name for the latin word folia meaning what?
What is leaf?