ARTICLES

The inner core is the Earth’s deepest layer, and it is a solid iron ball that is approximately 1,500 miles in diameter. Although it is extremely hot, the iron cannot melt due to the high pressure. The inner core also con...

www.reference.com/science/interesting-earth-s-inner-core-469823d666edbf37

The outer core, one of the three layers of the Earth, is approximately 1,430 miles (2,300 kilometers) thick and between 7,200 and 9,000 F. According to National Geographic, the outer core is mostly composed of iron and n...

www.reference.com/science/interesting-outer-core-876d8b62e045af74

Earth formed around 4.54 billion years ago and is the third planet from the Sun. It is the fifth largest planet in the solar system and the largest of the terrestrial planets. It is also the densest of all the planets.

www.reference.com/article/earth-43e8a25a6c575d7f

SIMILAR ARTICLES

The Earth's inner core is roughly 750 miles thick and it is primarily composed of iron. The iron in the Earth's core reaches temperatures as high as 13,000 degrees Fahrenheit, but remains a solid because of the intense s...

www.reference.com/article/thick-earth-s-inner-core-119c3aca596b5b25

The hottest layer of the Earth is the core. The core itself contains two layers: the outer core and the inner core. Of these two, the inner core is the hottest at between 9,000 and 13,000 degrees Fahrenheit.

www.reference.com/science/layer-earth-hottest-7ada3c235ba0329d

The center of the Earth is called its inner core, which is solid and surrounded by the liquid outer core. The outer core is surrounded by the solid mantle layer, which moves in response to a temperature difference of at ...

www.reference.com/science/center-earth-called-dea78fca33262329

The outer core, one of the three layers of the Earth, is approximately 1,430 miles (2,300 kilometers) thick and between 7,200 and 9,000 F. According to National Geographic, the outer core is mostly composed of iron and n...

www.reference.com/science/interesting-outer-core-876d8b62e045af74