Crystal confirmed as oldest known piece of earth

We know the surface of the earth is much younger than the earth itself.  This is because of things like earthquakes, floods, volcanoes, landslides and the weather.  These and other things are constantly changing the earth's surface.  We will be learning more about these events in class.

Scientists have just found something exciting, an ancient piece of the earth's crust, one part of earth that hasn't changed a lot!  They are hoping it might explain more about the history of earth.  Watch and learn.