The interior structure of the Earth is layered in spherical shells, like an onion.
These layers can be defined by their chemical and their rheological properties.
The Four Layers. The Earth is composed of four different layers. Many geologists
believe that as the Earth cooled the heavier, denser materials sank to the ...
Sep 21, 2016 ... In fact, if you were able to hold the Earth in your hand and slice it in half, you'd
see that it has multiple layers. But of course, the interior of our ...
Three hundred years ago the famous scientist Isaac Newton calculated, from his
studies of planets and the force of gravity, that the average density of the Earth ...
www.ask.com/youtube?q=Layers of the Earth&v=24wO1G_7fyc
Jul 13, 2015 ... You will learn about "Layers of Earth" in this video. Many many years ago, when
the earth was formed, it was very hot. With time and because of ...
The earth is divided in to four layers:CRUST, MANTLE, OUTER CORE and
INNER CORE. ... Echo-sounding techniques are used to explore the Earth's crust.
A Lesson about the Layers of the Earth - Crust, Mantle, Outer Core, and Inner
The Earth is made of many different and distinct layers. The deeper layers are
composed of heavier materials; they are hotter, denser and under much greater ...
The size of the Earth -- about 12,750 kilometers (km) in diameter-was known by ...
Below right: A view not drawn to scale to show the Earth's three main layers ...
The thin, outermost layer of the earth is called the crust. It makes up only one
percent of the earth's mass. The continental crust is thicker than the oceanic crust.