Liquified nickel and iron.
the outer core
the outer core is a sphere made up of mainly iron and nickel
The inner core and the outer core. The outer core is made of molten metal and the inner core is made of solid metal.
outer core
The outer core is made up of liquid iron and nickel.
The inner core is an alloy of iron and nickel, and the outer core is mainly liquid iron and nickel.The liquid layer made up of hot liquid iron and nickel that surrounds the inner core.
The answer is hot liquid
The Inner core is to be believed to be made up of iron-nickel alloy,while the outer core is made up of iron and nickel
The Earth's inner core is made of solid iron and nickel, like the outer core, though the outer core has MOLTEN iron and nickel for its contents.
Yes, earth's outer core is made of mostly liquid.
The Earth's inner core is solid metals and the outer core is liquid metals.
Outer and inner core are made of the same thing: iron and nickel