The 3 rock types.
What are sedimentary, igneous, and metamorphic?
These rocks are formed from particles called sediments.
What are sedimentary rocks?
This type of rock is formed when a rock is under intense heat and pressure.
What is a metamorphic rock?
These rocks are formed from cooled magma or lava.
What are igneous rocks?
Every rock you see used to be this.
What is different?
Rocks are always changing, and are part of something called this.
What is the rock cycle?
Sediments accumulate in these over a long period of time.
What are layers?
Metamorphosis means this.
What is change?
When rocks come of a volcano onto the Earth, they can do this to older rocks.
What is push the older rocks?
Soil has these.
What are layers?
All of the rocks of the world used to be this.
What is molten or melted rock or magma?
Particles that accumulate in layers over a long period of time may harden into this.
What is a sedimentary rock?
All metamorphic rocks began as this.
What is a different rock?
The two groups of rocks formed from hot liquid rock cooling.
What are intrusive and extrusive igneous rocks?
This is the hardest substance known to man.
What is a diamond?
Soil is formed from dirt, which is formed from this.
What is broken down rock?
These are remains or traces of plants and animals that lived long ago.
What are fossils?
Marble is an example of this.
What is a metamorphic rock?
These rocks are formed when magma cools slowly deep inside the Earth.
What are intrusive igneous rocks?
Sedimentary rock that is melted, cooled, and turned solid again would be this type of rock.
The lithosphere is broken into these.
What are tectonic plates?
This can happen when a rock formed from sediment is acted upon by lots of heat and/or pressure.
What is form into a metamorphic rock?
This causes the difference between coal and a diamond.
What are millions of years and tons of pressure?
These rocks form when hot liquid rock cools quickly very close to or at the surface of the Earth.
What are extrusive igneous rocks?
A rock that is subjected to intense heat and/or pressure would form this type of rock.
What is metamorphic rock?