EVERYDAY SCIENCE

Detailed explanation-1: -The core is made of two layers: the outer core, which borders the mantle, and the inner core. The boundary separating these regions is called the Bullen discontinuity. The outer core, about 2, 200 kilometers (1, 367 miles) thick, is mostly composed of liquid iron and nickel.

Detailed explanation-2: -5 In the center of Earth is the core, consisting of two layers: the inner and outer core. The entire iron and nickel core is extremely hot, so it is not surprising to learn that the outer core is in a molten state. However, the inner core’s iron and nickel are solid.

Detailed explanation-3: -The outer core is made of iron and is very dense. As the Earth rotates, the liquid outer core spins, creating the Earth’s magnetic field. The inner core is made of solid iron and nickel.

Detailed explanation-4: -Inner Core The innermost layer of the earth, an extremely hot, solid sphere of mostly iron and nickel. The inner core is 3, 200 to 3, 960 miles (5, 150 to 6, 378 km) below the surface and about 750 miles (1, 200 km) thick.

Detailed explanation-5: -The inner core is at the center of the Earth because it is the densest, made of solid iron and nickel.