Iron has a higher density than water, so it sinks in water; but is less dense than mercury so it floats.
Anything that doesn't float in water is less dense than water, say iron? So if you drop an iron bar into a glass of water, you can say that the iron sinks or you can interpret it as the water floats? If you are referring to liquid, then mercury.
Wood floats on water, but iron sinks into it.
The iron and sulphur split because the iron sinks and the sulphur floats so you can separate the mixture
The density of mercury is much greater than that of water, so the nail will not sink. The density of the nail is less than that of mercury and greater than that for water, so it sinks in the water.
the density of water is higher than the density of wood... & so an iron piece sinks & a ton of wood floats...
the iron bob floats in Mercury because it density is less than mercurys density
It means that mercury is denser than iron.
Mercury is more dense than iron, causing it to float on the surface of mercury.
Have you heard of Archimedes. Well he stated that the weight of water displaced by an object is equal to the weight of the object. From here we conclude that object being more denser than water sinks those being less dense than water floats. An Aluminum cube has a much higher density than that of water and the sheet is less dense than water. Thus the former floats while the latter sinks. Now you also might have noticed that an iron nail sinks while an iron ship floats. I hope now you can answer this question!!
the iron bob floats in mercury because it density is less than mercurys density
iron is more dense then water and wood is less dense then water. iron sinks because it is heavier then the density of water. wood sinks because woods density is lighter then the density of water.
Anything which floats on water can only do so if it displaces, or moves out of the way, its own mass of water. Wood floats because it displaces a small amount of water, a large lump of iron is very heavy so it will keep displacing water until it has displaced its own mass.