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The outer core of the earth, composed primarily of iron and nickel, remains liquid because pressure at those respective depths is not sufficient to prevent a phase change from solid to liquid. The inner core remains solid because pressure at those depths prevents any expansion in volume, which is necessary for a substance to be in a liquid state.
Zackery Schumm
Dawson Beatty
It is liquid
Wiki User
∙ 13y agoScientists believe it's because the outer core is primarily composed of iron and nickel that are under so much heat that they've liquefied, but not enough pressure that they've solidified (like the inner core has).
And that's probably a very good thing, since the spinning of the liquid outer core is believed to be responsible for the Earth's protective magnetic field, without which it's unlikely that land-based life forms (including us) could've evolved.
Wiki User
∙ 11y agoAt some point of depth in the Earth's interior, around 5150 km, is the transition from the liquid outer core and the solid sphere of the inner core, a ball of incredibly hot iron-nickel alloy. Temperatures here reach between 5,000 and 7,000 degrees C, and pressures are calculated to be around 3,000,000 units of sea level atmospheric pressure. Despite the high temperature, at these pressures the metals cannot remain molten.
refrences:
NASA.gov
Science blog.com
Wiki User
∙ 13y agoSeismic recodrings of earthquakes far away give evidence that the outer core is liquid. The speed and angle that the waves reach the seismic observatories are best explained by a liquid outer core.
Wiki User
∙ 13y agoTwo reasons, 1. because the inner core is so hot! The heat just melts it right into liquid. 2. because there is not nearly as much weight pushing down on it as the inner core.
Wiki User
∙ 14y agoIt is believed to create the earths magnetic field.
Wiki User
∙ 12y agoThe outer core is liquid because hydergen forms from oxygen
Wiki User
∙ 12y agoBecause the temperatures are too high for the rock to stay a solid.=D.
Wiki User
∙ 9y agoBecause seismic "S" waves do not pass though the core area and the seismic "P" waves are refracted in a specific pattern that reflects the outer cores liquid nature.
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Is the core liquid or solid?
There are two parts of the core: Inner and Outer. The outer core is liquid, the inner solid. The inner core is solid due to the pressure exerted on it, despite the excessively high temperature.
Is the inner core or the outer core solid?
In inner core is solid while the outer core is liquid. This is because the inner core, being deeper, is under more pressure.
Which layer of the earth is made up of solid nickel and iron?
The inner core is an alloy of iron and nickel, and the outer core is mainly liquid iron and nickel.The liquid layer made up of hot liquid iron and nickel that surrounds the inner core.
Why is the inner the outer core liquid?
the inner core is solid because of tremendous pressure the outer core is liquid due to less pressure and heat
Is the inner core molten?
The inner core is solid due to pressure. With less pressure on it, the outer core is liquid.
Are the inner and outer core of earth the same?
No. The inner and outer core are both composed primarily of iron and nickel, but the outer core is liquid and surrounds the inner core. The inner core is the innermost layer of Earth and is kept solid by the enormous pressure.
Is the inner and outer core together solid and liquid?
Well, the outer core is made of liquid and the inner core is solid so i guess in a way it kind of is solid and liquid.
Is the solid outer core more dense than the liquid inner core?
This question is based on a false assumption that the outer core is solid and the inner core is liquid. This is incorrect. It is in fact the inner core that is solid (and so is the most dense) and the outer core which is liquid.
Is the core liquid or solid?
There are two parts of the core: Inner and Outer. The outer core is liquid, the inner solid. The inner core is solid due to the pressure exerted on it, despite the excessively high temperature.
What is the differences between the inner core and the outer core?
The inner core is a solid, and the outer core is a liquid.
How does outer core different from inner core?
outer core is liquid whereas the inner core is solid
How does the outer core differ from inner core?
outer core is liquid whereas the inner core is solid
How did the outer core become solid?
It isn't. The inner core is solid, the outer core is liquid.
What difference between inner core and outer core of earth?
The inner core Is solid and the outer core in liquid
What is Difference between earths inner core and outer core?
The inner core Is solid and the outer core in liquid
Is the earth's core liquid or solid?
Both! The outer core is in a liquid state and the inner core is a solid. Both the inner and outer core are formed mainly of iron and nickel.
Is earths core liquid or solid?
Both! The outer core is in a liquid state and the inner core is a solid. Both the inner and outer core are formed mainly of iron and nickel.
