The core,beneath the mantle,is the deepest and hotest layer of the is made almost entirely of metal.Thae core is made of two layers: the outer core which bordres the mantle,and the inner core.the inner core is shaped like a ball.                                                                                                                                                         sorry if im srong :)
Core - is the innermost layer of the earth,is beneath the mantle and the hottest or warmest part of the earth which have two kinds the Inner and the Outer Core

Inner core is believed to be made of solid materials and has a diameter about 2560 to 2880 km.

Outer Core is composed of molten iron and nickel and has a diameter of 2880 to 4960 km.