What is the earth's core? Please do not give me information that is way beyond my level because I'm only 12.

Question

Please and thanks :)

Answer 1

The Earth's core is divided into two parts-the outer core and the  inner core.  The distance from the outer edge of the outer core to the center of the inner core is  about 3500 km.  The outer core is 2300 km thick, and the inner core is 1200 km thick.

Although the inner core is hotter than the outer core, the inner core is solid due to the extreme pressure.  The outer core is liquid.  The information about the outer and inner core's state was determined by studying earthquakes waves.

The outer core is composed mainly of a nickel-iron alloy, while the inner core is almost entirely composed of iron.

Earth's magnetic field is believed to be controlled by the liquid outer core.

Scientists have learned that the Earth's core is turning in an eastward direction and spinning faster than the Earth itself. Every 400 years, the core is a full turn ahead of the Earth.

This information about the Earth's core may shed new light on how the Earth works. For starters, the core's motion could help explain why magnetic north and south periodically wander or reverse over Earth's history.

Answer 2

The Earth's core is the center of the Earth. The core is divided into two parts, the inner core and outer core. The inner core is made of solid iron and the outer core is iron mixed together with other kinds of metals, such as nickel.

Answer 3

The inner part of the earth is the core. This part of the earth is about 1,800 miles (2,900 km) below the earth's surface. The core is a dense ball of the elements iron and nickel. It is divided into two layers, the inner core and the outer core.

The inner core - the center of earth - is solid and about 780 miles (1,250 km ) thick.

The outer core is so hot that the metal is always molten, but the inner core pressures are so great that it cannot melt, even though temperatures there reach 6700ºF (3700ºC). The outer core is about 1,370 miles (2,200 km) thick. Because the earth rotates, the outer core spins around the inner core and that causes the earth's magnetism.

Inner core:

It is 3,200 - 3,960 miles (5,150-6,370 km) below the earth's surface and mainly consists of iron, nickel and some lighter elements (probably sulphur, carbon, oxygen, silicon and potassium. The temperature in the inner core is about 9032 - 10832 ºF (5000-6000 ºC). Because of the high pressure, the core is solid. The average density of the core is about 15g/cm³.

Outer core:

The outer core is at 1,800 - 3,200 miles (2,890-5,150 km) below the earth's surface. The outer core is liquid and mainly consists of iron, some nickel and about 10% sulphur and oxygen. The temperature in the outer core is about 7200 - 9032 ºF (4000-5000ºC). The density of the outer core is between the 10g/cm³ and 12,3g/cm³. The outer core and inner core together cause the earth's magnetism.

Answer 4

nothing more to add what has already been said by Curiosity, Valerie and Dave.

thnks

Answer 5

The Earths core is made of Iron and Nickle metal. It has two parts, the outer core is liquid and the inner core is solid. Pressure makes the Iron and Nickle metal turn solid. The solid inner core is the size of the Moon. Also, interestingly, the inner core rotates a little bit faster then the surface of the Earth.

When the earth was very young, 4,500,000,000 years ago, it was entirely liquid and heavy Iron and Nickle sank to the center on the Earth forming the core.

We know that the Earth contains a core because of  the way the sounds of earthquakes travel through the earth. Earthquakes are like ultrasound, the machine that doctors use to see an unborn baby. In this case the sound made by earthquakes is used to build up a picture of inside of the Earth.