By Solid i mean Whole not Hollow, considering its diameter and approcimate weight. Also all the endless cave's and caverns
2006-09-12 08:31:22 · 19 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
never heard of the planet earth. sorry
2006-09-12 08:32:47 · answer #1 · answered by pro_choice_my_right 3 · 0⤊ 2⤋
Hi. Even if the Earth was mostly molten iron it would still be pretty much open space. The distance between the 56 particles that make up the iron atom's core and the electrons in the surrounding cloud is enormous. Now take neutronium! Neutrons in contact with each other. Now that's closer to being solid. Not completely, more like a pool full of billiard balls, but closer.
2006-09-12 08:42:15 · answer #2 · answered by Cirric 7 · 0⤊ 1⤋
Seismic studies -- measurements of how waves travel through the earth -- have shown that the earth's core is solid iron, mixed with a bit of nickel, a liquid outer core and a viscous mantle. The upper layer, or crust, ranges up to 70 km thick.
Caves are formed by erosion, volcanic action, movements of the earth's tectonic plates or chemical action within the earth.
2006-09-12 08:43:37 · answer #3 · answered by johntadams3 5 · 0⤊ 1⤋
most of the earth is solid, except for the most central part called the core, it is a liquid. also how do you know a cavern is endless if you have never been in the whole thing.
2006-09-12 08:33:33 · answer #4 · answered by Danielle 4 · 0⤊ 1⤋
The central core is heavy and solid it would be liquid but there is too much pressure for that. The caverns etc mentioned are on the surface.
2006-09-12 08:36:23 · answer #5 · answered by Maid Angela 7 · 0⤊ 1⤋
You're not one of those crazy people who believes in the hollow Earth theory are you? :) The Earth is whole. It has a solid crust and a liquid core.
2006-09-12 08:36:21 · answer #6 · answered by Anonymous · 0⤊ 1⤋
the caves just lie on the surface, in comparison to the depth of the Earth. So I'd say it is solid to a point and runny in the middle.
2006-09-12 08:34:41 · answer #7 · answered by Princess415 4 · 0⤊ 1⤋
It isn't. It's mantle of peridotite and outer and inner core of liquid iron-nickel have never been proven, but the Earth's mass has been calculated - gravity is a function of mass. I'm writing a story at the moment about the world below and the creatues that might inhabit it.
2006-09-12 08:34:27 · answer #8 · answered by Anonymous · 0⤊ 1⤋
I worked in one of the deepest mines in the world - Westdriefontein Deep levels - and the planet earth seemed pretty solid down there.
2006-09-12 08:54:13 · answer #9 · answered by cycloneweaver.com 3 · 0⤊ 1⤋
"It isn't. It's mantle of peridotite and outer and inner core of liquid iron-nickel have never been proven,..."
It has been proven that there is a rotating iron core within the earth, hence the magnetic field.
Unless you believe that the rotating core is suspended perfectly within a hollow shell, then the intervening space is filled with a liquid.
2006-09-12 08:45:46 · answer #10 · answered by Holden 5 · 0⤊ 1⤋
I do. There are caverns, but they are not endless. We know the density of the Earth, and it is quite dense, too dense to have large voids inside.
2006-09-12 08:50:40 · answer #11 · answered by campbelp2002 7 · 0⤊ 1⤋