What is the difference inner core and outer core?

What is the difference inner core and outer core?

Main Difference: The main difference between the inner core and outer core of the earth is that inner core of the earth is the innermost layer of our planet, whereas outer core is the layer that surrounds the inner core.

What is in the core of the Earth?

Earth’s core is made largely of iron, and it’s split into two parts: a small, crystallized ball of hardened iron at the center of the Earth, called the inner core, and a liquid outer core that surrounds the inner core with a “roiling mass of molten metal,” said Williams.

What are 5 facts about the core?

5 Facts About the Earth’s Inner Core

• It’s Almost The Size of the Moon. The Earth’s inner core is surprisingly large, measuring 2,440 km (1,516 miles) across.
• It’s Hot…Really Hot.
• It’s Mostly Made of Iron.
• It Spins Faster Than the Surface of the Earth.
• It Creates a Magnetic Field.

What is Earth’s outer core called?

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. The NiFe alloy of the outer core is very hot, between 4,500° and 5,500° Celsius (8,132° and 9,932° Fahrenheit).

What are facts about about the outer core?

The center of the Earth is made up of two layers, the outer core and the inner core. The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth’s magnetic field .

What are the characteristics of the outer core?

Earth’s outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth’s solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth’s surface.

What is the difference between inner and outer core?

The inner core and the outer core are made up of similar stuff chemically (both are made mostly of iron, with a little nickel and some other chemical elements)–the difference between them is that the outer core is liquid and the inner core is solid.

What are the properties of the outer core?

The average magnetic field strength in the Earth’s outer core was measured to be 2.5 millitesla, 50 times stronger than the magnetic field at the surface. The outer core is not under enough pressure to be solid, so it is liquid even though it has a composition similar to the inner core. Sulfur and oxygen could be present in the outer core.