The Structure of the Earth
The Earth has three main layers: the crust, the mantle and the core.The crust
is on the surface of the Earth, the mantle is below and the core is found at the
center. The core can also be divided into the inner core and the outer core. If
we cut the Earth in half like an orange, this is what we would see:
The crust is around 10 miles thick, though this can vary – it is much thicker
under continents than it is under oceans. It is made up of rocks and loose
material. The mantle is below the crust and is approximately 1800 miles wide.
It has the properties of a solid but is able to flow very slowly.