EVERYDAY SCIENCE

Detailed explanation-1: -Temperature in the inner core is about 5, 200° Celsius (9, 392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm). The temperature of the inner core is far above the melting point of iron. However, unlike the outer core, the inner core is not liquid or even molten.

Detailed explanation-2: -Above the inner core is the outer core, a shell of liquid iron. This layer is cooler but still very hot, perhaps 7, 200 to 9, 000 degrees Fahrenheit (4, 000 to 5, 000 degrees Celsius). It too is composed mostly of iron, plus substantial amounts of sulfur and nickel.

Detailed explanation-3: -The interior of Earth is very hot (the temperature of the core reaches more than 5, 000 degrees Celsius) for two main reasons: The heat from when the planet formed, The heat from the decay of radioactive elements.

Detailed explanation-4: -The inner core is a solid area made mostly of iron and a smaller amount of nickel. It acts as a giant furnace, with temperatures around 5, 000-6, 000 degrees Celsius. This heat causes the outer core to melt and turn into liquid magma.

Detailed explanation-5: -The bottom line of these efforts is that there is a rather wide range of current estimates of the earth’s core temperature. The “popular” estimates range from about 4, 000 kelvins up to over 7, 000 kelvins (about 7, 000 to 12, 000 degrees F).