The Earth has two solid parts: the outer crust that covers the surface, and the inner core, which is primarily made of iron. Earth has three layers that make up nearly 4,000 miles of rock, solid metals and liquid metals. More »

Earth is like a giant magnet in several ways. Not only does it have a magnetic north and south pole that act similarly to the poles on bar magnets, but the planet is surrounded by a strong magnetic field, which is electr... More »

The molten rock below the Earth’s surface is known as magma. Magma is a combination of a molten and semi-molten rock mixture that is extremely hot. Magma is between 1,292 and 2,372 degrees Fahrenheit, or 700 and 1,300 de... More »

The Earth is divided into four layers: crust, mantle, outer core and inner core. The crust is the only layer of Earth that hosts life, as the mantle, inner core and outer core are too hostile for organisms to exist. More »

www.reference.com Science Earth Science Layers of the Earth

The Earth consists of four layers: crust, mantle, outer core and inner core. Each layer has its own properties and characteristics that separates it from the other layers. More »

The four layers of the Earth are called the inner core, the outer core, the mantle and the crust. In addition, there are two different types of crust. The continental crust is the part that is under land, and the oceanic... More »

The dirt, soil and rocks on the Earth's surface are directly above the Earth’s crust. The crust forms the continents and ocean basins of the world, and the molten mantle lies below the crust. Beyond the mantle lies the E... More »