What State Of Matter Is The Outer Core

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What State Of Matter Is The Outer Core?

Unlike the inner (or solid) core the outer core is liquid.

Is outer core solid or liquid?

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).

Is the outer core solid or molten?

The outer core is a liquid mix of iron and nickel but the inner core is solid metal. Sometimes hot molten rock called magma bursts through Earth’s surface in the form of a volcano.

What state of matter is the inner core likely in?

The inner core is solid the outer core is liquid and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core silicate crust and mantle) and the increase in temperature and pressure as depth increases.

Is the outer core a solid liquid or gas Why?

The core (mainly nickel-iron) has two layers. The outer core is liquid because the temperature is hotter than the melting points of iron and nickel. The inner core although even hotter is solid because of the intense pressure.

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Is the outer core solid?

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.

Where is the outer core?

The outer core of the Earth is a liquid layer about 2 261 km thick composed of iron and nickel which lies above the Earth’s solid inner core and below its mantle. Its outer boundary lies approximately 2 890 km (1 800 mi) beneath the Earth’s surface.

In what state is the core present?

solidEarth’s inner core is the innermost geologic layer of the 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.

How do we know the core is solid?

Seismic waves traveling through the earth refract for the same reason that light refracts when entering different substances (e.g. air water). The inner core has a different density from the outer core and this difference in density tells us that it is solid.

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 is the outer core do?

The outer core is the third layer of the Earth. … 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. The movement causes powerful electric currents to develop in the liquid iron itself.

Why is inner core in solid state?

The inner core is solid because it is made of very dense or heavy materials – like iron and nickel. Even though it is very hot these materials don’t “melt” very easily so they stay solid. Answer 3: It turns out that many materials can be a solid at a higher temperature if the pressure is also higher.

Is the outer core more dense than the mantle?

The outer core is made up of slightly less dense material compared with the inner core the lower mantle is less dense than the outer core the upper mantle is less dense than the lower mantle and so on with the crust being the least dense and lightest portion of our Earth.

Why do outer and inner core differ in their states of matter?

Answer 1: Earth´s inner core and outer core are both made of an iron-nickel alloy. The state of matter (solid liquid or gas) of a given material depends on its temperature and pressure. … Although the inner core is very hot it is solid because it is experiencing very high pressure.

What is the mantle state of matter?

The mantle is the mostly-solid bulk of Earth’s interior. The mantle lies between Earth’s dense super-heated core and its thin outer layer the crust.

Is the lithosphere solid?

The lithosphere is the solid outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust the outermost layers of Earth’s structure. … There are two types of lithosphere: oceanic lithosphere and continental lithosphere.

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What is the deepest hottest layer?

The inner coreThe 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.Aug 26 2019

How old is the outer core?

Earth’s core was formed very early in our planet’s 4.5 billion-year history within the first 200 million years.

Which wave was passed through the outer core?

P waves can travel through the liquid outer core. An S wave is a different beast. In an S wave the rock particles slide past one another undergoing shear — so an S wave is also called a shear wave.

What are the two metals located in the outer core and why do they float?

the outer core is primarily made up of iron and nickel. it is mostly a alloy of nickel and iron. . The outer core doesn’t “float”on the inner core since the inner core is solid any more than the oceans “float” on the Earth.

What is the outermost layer of the earth?

the crustThe outermost layer called the crust is solid too. Together these solid parts are called the lithosphere. Earth’s crust is made up of hard rocks. It is the only part of the Earth that humans see.May 20 2015

What evidence is there that the outer core is molten?

The seismic waves released by earthquakes provide scientists with several forms of measurable evidence that supports the idea of the Earth’s outer core being liquid. Two particular types of waves compressional waves and shear waves — known commonly as P-waves and S-waves respectively provide direct evidence.

How do geologists know that the outer core is liquid?

Scientists figured out that the outer core must be liquid because S waves do not pass through it but P waves do. … Thus by observing many seismic waves from many earthquakes all over the world scientists have been able to work out the density of different parts of the Earth (i.e. the core mantle and crust).

Does the moon have a core?

Uncovering details about the lunar core is critical for developing accurate models of the moon’s formation. … The team’s findings suggest the moon possesses a solid iron-rich inner core with a radius of nearly 150 miles and a fluid primarily liquid-iron outer core with a radius of roughly 205 miles.

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How do the inner core and outer core differ quizlet?

How do the inner core and outer core differ? The inner core is solid whereas the outer core is liquid.

Why is Earth’s core hot?

There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted which has not yet been lost (2) frictional heating caused by denser core material sinking to the center of the planet and (3) heat from the decay of radioactive elements.

What is the outer core quizlet?

What is the outer core? A thick layer composed of nickel and iron that lies above the earth’s inner core and below it’s mantle.

Who discovered the outer core?

The discovery that the core of the Earth contains a solid inner core surrounded by a liquid outer core was made by seismologist Inge Lehmann who was studying how seismic waves bounce off the interior of the Earth.

Why is the inner core solid and the outer core liquid Brainly?

But despite the fact that the boundary between the inner and outer core is approximately as hot as the surface of the sun only the outer core is liquid. The inner core is solid because the pressure at that depth is so high that it keeps the core from melting.

What is the state of matter of the outer and inner core?

Most of the outer part of our planet is solid this solid mantle sits on an outer liquid core and a solid inner core. Two thirds of the Earth’s surface is covered in liquid water.

What is Earth’s state matter?

Matter commonly exists on earth in three forms: solid liquid and gas. These three forms are called the three states of matter. Matter is usually found in only one form at ordinary earth temperatures.

Is Magma a liquid or solid?

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