What does core mean for science?

Scientific definitions for core core. [ kôr ] The central or innermost portion of the Earth, lying below the mantle and probably consisting of iron and nickel. It is divided into a liquid outer core, which begins at a depth of 2,898 km (1,800 mi), and a solid inner core, which begins at a depth of 4,983 km (3,090 mi).

What are the 2 parts of the Earth’s core?

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. Outer Core The outer core, about 2,200 kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel.

What is the definition of outer core in Science?

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. As Earth spins on its axis, the iron inside the liquid outer core moves around.

What is outer core short answer?

The outer core is the layer surrounding the inner core of the earth. It is a liquid layer, also made up of iron and nickel. It is still extremely hot, with temperatures similar to the inner core.

What is a core in physics?

General Physics) a piece of magnetic material, such as soft iron, placed inside the windings of an electromagnet or transformer to intensify and direct the magnetic field.

What is a core of Earth?

Earth’s inner core is the innermost geologic layer of planet Earth. It is primarily a solid ball with a radius of about 1,220 km (760 mi), which is about 20% of Earth’s radius or 70% of the Moon’s radius.

What is the meaning of inner core?

Inner-core definition (planetology) The solid material found in the centre of some planets at extremely high temperature and pressure, distinct from the liquid outer core. (geology) The innermost part of the Earth, believed to be made of a nickel-iron alloy.

What is outer core and inner core?

Both the inner and outer cores consist primarily of iron and nickel. They’re extremely hot, with temperatures ranging from 7200–9000℉ (4000–5000℃). The inner core is under intense pressure, which keeps it solid despite high temperatures. Outer Core: The outer core, which is liquid, is about 1300 miles (2092 km) thick.

What is inner and outer core?

What is inner core short answer?

The inner core is the very center of the Earth, and the hottest part of the planet. It is a mainly a solid ball with a radius of about 1,220 km (760 mi), according to seismological studies.