What is the diameter of the outer core?

The outer core is very dense liquid rock (about 11 g cm−1). It is where the Earth’s magnetic field arises and has a diameter of about 6,930 km/4,300 mi.

What is the diameter of the inner core?

about 2,400 kilometers

Composed mainly of iron, Earth’s core consists of a solid inner core about 2,400 kilometers in diameter and a fluid outer core about 7,000 kilometers in diameter. The inner core plays an important role in the geodynamo that generates Earth’s magnetic field.

How thick is the outer core exactly?

2,200 km-

Unlike the yolk of an egg, however, the Earth’s core is actually made up of two distinct parts: a 2,200 km-thick liquid outer core and a 1,250 km-thick solid inner core. As the Earth rotates, the liquid outer core spins, creating the Earth’s magnetic field.

What are 3 facts about the outer 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. As Earth spins on its axis, the iron inside the liquid outer core moves around.

What differs outer from inner 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 state of matter is the outer core?

molten state

The entire iron and nickel core is extremely hot, so it is not surprising to learn that the outer core is in a molten state. However, the inner core’s iron and nickel are solid.

Why is outer core is liquid?

The metallic nickel–iron outer core is liquid because of the high temperature. However, the intense pressure, which increases towards the inner core, dramatically changes the melting point of the nickel–iron, making it solid.

Why is Earth’s core liquid?

So the Earth’s core is liquid because it’s hot enough to melt iron, but only in places where the pressure is low enough. As the Earth continues to age and cool, more and more of the core becomes solid, and when it does, the Earth shrinks a little bit!

What is the deepest layer of the Earth called?

The inner core

The inner core is the deepest layer on Earth. It is also made up of iron and nickel but the pressure is so high that it is no longer liquid. The temperatures in the inner core are as hot as the surface of the sun, about 5505 °C. Earth’s inner core is 1,230 to 1,530 km thick.

Do we live inside or on top of the Earth?

Before we begin, we’d like to clarify that we do not live “inside the earth.” We live on the surface of the earth.

What is the thinnest layer of the atmosphere?

The troposphere is also the thinnest layer, only about 10 miles high. The second layer up from the ground is the stratosphere. This layer extends from about 10-30 miles, and unlike the troposphere, it increases in temperature with elevation.

What is the thinnest layer of the Earth structure?

the crust

Discuss with the whole class what the relative thicknesses of the layers are — that the inner core and outer core together form the thickest layer of the Earth and that the crust is by far the thinnest layer.

Why is the outermost layer Brown?

Melanocytes produce the skin coloring or pigment known as melanin, which gives skin its tan or brown color and helps protect the deeper layers of the skin from the harmful effects of the sun.

Is the inner or outer core thicker?

The outer core is 2,300 kilometers (1,429 miles) thick, while the inner core is 1,200 kilometers (746 miles) thick. The outer core is mainly composed of a nickel-iron alloy (liquid iron), while the inner core is almost entirely composed of a pure solid iron body.

What is the biggest layer on Earth?

The mantle

* The mantle is the largest layer of the Earth. It is 2900km thick. *It includes the lithosphere and athenosphere.

What is the hottest layer?

The hottest layer of the Earth is its innermost layer, the inner core. Quite literally the center of the Earth, the inner core is solid and can get to…

Which layer of the Earth is hotter than the sun?

The Earth’s core is hotter than the outer layer of the Sun. The Sun’s huge boiling convection cells, in the outer visible layer, called the photosphere, have a temperature of 5,500°C. The Earth’s core temperature is about 6100ºC. The inner core, under huge pressure, is solid and may be a single immense iron crystal.

Where is the center of the Earth?

In 2003, a refined result was yielded by Holger Isenberg: 40°52′N 34°34′E, also in Turkey, near the district of İskilip, Çorum Province, approx. 200 km northeast of Ankara. In 2016, Google Maps marked Isenberg’s result of 40°52′N 34°34′ECoordinates: 40°52′N 34°34′E as the geographical center of Earth.

Which country is heart of Earth?

Antarctica is the sixth continent, but it’s a continent that you can define as the heart of Earth. The world’s main marine current is the circumpolar Antarctic current that moves from west to east around Antarctica.

Is gravity zero at the center of the Earth?

If you are at the center of the earth, gravity is zero because all the mass around you is pulling “up” (every direction there is up!).

Which city is at the center of the world?

Jerusalem is at the navel of the world, and is depicted as a square walled city enclosing an image of the risen Christ.

What is the most central city in the US?

Lebanon, Kansas

Original Calculation of the Geographic Center of the Continental United States. The original geographic center of the contiguous United States has long been considered to be about 2.6 miles northwest of the town of Lebanon, Kansas. The GPS coordinates are 39°50′N 98°35′W.

Which city is the capital of the world?

For now, London is the world’s global capital.

What is the most central point in the US?

The geographic center of the 48 contiguous or conterminous United States, determined in a 1918 survey, is located at 39°50′N 98°35′W, about 2.6 miles (4.2 km) northwest of the center of Lebanon, Kansas, approximately 12 miles (19 km) south of the Kansas–Nebraska border.

Where is the true center of the United States?

Lebanon, Kansas

The Geographic Center of the Contiguous United States is located about two miles northwest of Lebanon, Kansas. A small stone pyramid marks the point measured by a survey performed in 1918. A picnic table and cozy chapel (seats about six) are nearby.

Is the center of America Motel real?

The Center of America Motel, with the awesome circular wood hall, is a church called Our Lady of Grace Shrine at Marylake located in King City, Ontario.