2007-03-28 16:03:29 · 11 answers · asked by lisa r 1 in Science & Mathematics ➔ Physics
You don't mention the liquid in whichyou are floating the rocks. If it is mercury then almost all rocks would float.
2007-03-28 17:03:42 · answer #1 · answered by peter n 3 · 1⤊ 0⤋
This depends on the kind of rock. Some rocks have lower densities than water. These are the only rocks that could float in water. Objects only float when their densities are lower than the density of the fluid of which they are submerged.
2007-03-28 16:12:59 · answer #2 · answered by Lucy 2 · 1⤊ 0⤋
One of the answerers gave pumice as the type of rock that floats. Pumice does float because it is a solidified foam composed of volcanic material. However there is one other type of rock that floats....
Ice!!. Water ice (whether glacial or polar ice cap ice formed by freezing of seawater) meets all the criteria of a mineral (and a rock): inorganic, crystalline, constant chemical composition. There is no reason to not consider ice (snow, as well) as a mineral aggregate!!
2007-03-28 16:29:50 · answer #3 · answered by David A 5 · 0⤊ 0⤋
Any material that is less dense that the fluid in which it is suspended will float. That being said there are some "rocks" with a density less than that of water which will float.
2007-03-28 16:14:44 · answer #4 · answered by millercommamatt 3 · 1⤊ 0⤋
Most rocks do not float, but some do, like pumice.
It is a rock formed by volcanoes and is very pourous.
2007-03-28 17:33:18 · answer #5 · answered by tk_pinna 2 · 0⤊ 0⤋
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Solid rocks will not Spongy rocks may float It is all about density ( mass divided by volume)
2016-04-06 04:39:46 · answer #6 · answered by ? 4 · 0⤊ 0⤋
Only one kind of rock has been known to float - it's called 'pillow lava', and is formed when hot lava hits ice cold sea water.
2007-03-28 16:08:12 · answer #7 · answered by edward_otto@sbcglobal.net 5 · 1⤊ 2⤋
rocks do not float because rock is denser then water
2007-03-28 16:11:42 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Wow I read the answer's you got and i didn't know rock's could float.You learn thing's on here.
2007-03-28 16:17:17 · answer #9 · answered by flossie mae 5 · 1⤊ 0⤋
Pumice does.
2007-03-28 16:10:25 · answer #10 · answered by Anonymous · 2⤊ 0⤋