Earth facts

                Earth Facts

Did you know? the Earth is made out of four layers, crust,mantle,outer core and the inner core.

Crust:

 The crust varies from around 5 km thick . The crust is made out of rocks that consist primarily of silica and alumina called the "sial".

Mantel:

The mantel the second layer of the earth. The mantle is much thicker than the crust it is about 3000 km deeper than the crust. This mantle is made up of slightly different silicate rock and magnesium and iron  

Tectonic plates

The tectonic plates are very fragile, when tectonic plates touch or bump into each other it could cause an earthquake or The plates make up Earth's outer shell, called the lithosphere.