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Why do geologist think earths core contains mostly iron - Answers.com


Other orbiting bodies contain more iron than Earth's crust does. Samples of Earth's crust contain less iron than found in meteorites, and iron is a comparatively ...

Why do scientist think earth's core contains iron - Answers.com


Samples of Earth's crust contain less iron than found in meteorites, and iron is a comparatively ... What do geologist look at for proof that earth's core contains mostly iron? Comits. 8 people found this useful. Edit. Share to: Paul Jones. 112,553 ...

How do scientists know that the Earth's core is made out of Iron and ...


How do scientists know that the Earth's core is made out of Iron and not another ... geologists use seismometers to measure movements in Earth's interior (e.g. ... how nuclear fusion works in stars), so it makes sense that the core is mostly iron.

BBC - Earth - How we know what lies at Earth's core


Aug 13, 2015 ... Earth Menu. Earth's interior is divided into several layers (Credit: Claus Lunau/ SPL). The Big Questions · Geology ... The answer here is that it's almost certainly made mostly of iron. The core is ... of the core. What makes scientists think it begins 3000km down? .... "People have not been able to ...

Why does the Earth have a liquid core? – Starts With A Bang


Sep 28, 2011 ... So the Earth's core is liquid because it's hot enough to melt iron, but only ... When I think of earthquakes I think of plate tectonics. ... (Note that the fact that it is ( mostly) iron is completely irrelevant – any liquid conductor will do; ... When I took geology years ago I was surprised at how much of the E...

Is the Earth's core solid? : Discovery News


Apr 26, 2010 ... The core is composed mostly of an iron-nickel alloy and, ... Another interesting feature of the Earth's core is that many seismologists think the inner core spins faster than the ... So the center of the Earth contains neither liquid iron nor sugary ... DNews: Do Moms Really Know Why Their Babies Are Crying?

Do we really know what Earth's core is made of? : askscience - Reddit


Oct 26, 2011 ... S-waves do not penetrate the outer core, indicating that it's liquid. ..... the mostly pure iron core contains much less of the non-iron element, so as ..... movies like The Core do is that they make you think about geology and the ...

What Evidence Led Scientists to Conclude That Earth's Outer Core ...


To this day, scientists have not been able to directly observe the Earth's core, ... ... Geologists then measure the speed of seismic waves as they travel from one seismometer to ... The outer core is believed to contain a system of convection currents that create a ... The outer and inner core are both composed mainly of iron.

The Earth: Differentiation and Plate Tectonics


1) the inner core (mostly solid iron) ... How do we know this? ... The only materials of suitable density are heavy metals, such as iron, nickel, cobalt, copper, etc. ... by geologists, and differentiation caused the heavy metals (iron, nickel and related .... These gases formed the Earth's earliest atmosphere, and once surface ...

What is Mercury Made Of? - Space.com


Nov 27, 2012 ... Mercury is a terrestrial planet with a rocky surface and metallic core. ... The smallest planet in the solar system, Mercury bears a strong resemblance to Earth's moon. Like the other three terrestrial planet, Mercury contains a core surrounded by a ... Scientists think this had to do with its formation and early li...

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What do geologists look at for proof that Earth's core contains mostly ...


What is earth's core mostly made out of? The Inner ... Why do scientist think earth's core contains iron? ... How do geologist know what Earth's interior looks like?

How Do We Know What's in the Earth's Core? PM Explains


Jun 15, 2012 ... But how exactly do you conduct research on an impenetrable, hostile ... The core's heat is mostly due to the slow decay of radioactive elements ... The molten iron outer core lies about 3000 kilometers below our feet, while ... But that doesn't mean the book is closed; geologists are still turning up surprises.

core - National Geographic Society


Aug 17, 2015 ... Earth's core is the very hot, very dense center of our planet. ... What We Do .... kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel. ... Geoscientists think that the iron crystals in the inner core are arranged ..... images , which generally link to another page that contains the media cre...