the modern iron has a small "shell" to hold the water in it now if its empty and is in water it may float from the air inside the iron
Elisha didn't make the iron float. God created it through a miracle. That would explain how there was iron during the bronze age, if God created it for a purpose.
Solid iron will float in liquid mercury. In most liquids it will sink.
Iron will float in oil in most cases. However, for iron to float in oil, it must have a density which is lower than the oil.
if u made the piece ofmetal hollow it can float unless its density is larger than the water densityANSWER:If you make it displace more water than what makes it sink, it will float, as in a ships hull. If you make pontoons out of it, it will float. If you make an enclosed shape that contains enough air, it will float. There should be less density in the item than the water.
-- The density of iron near room temperature is around 7.9 gm/cc, whereas at the same temperature, mercury is liquid with a density around 13.5 gm/cc. A lump of iron will float nicely in a bowl of mercury at room temperature. -- Don't forget that aircraft carriers and battleships are also pieces of iron, and that they float nicely in water.
I can make a iron nail float. Simply melt some lead and the iron will float on top of the lead. Your question seems to be with regard to how do Boats float and the answer is Bouyancy. The Boat displaces a volume of water and if the weight of the displaced water is less than the weight of the boat, the boat will float.
Buoyancy!
Solid iron will float in liquid Mercury. In most liquids it will sink.
No, a lump of iron pyrite will sink in water.
Iron sinks in water because it is denser than water. The density of iron is about 7.87 g/cm^3, while the density of water is 1 g/cm^3. This difference in density causes iron to sink when placed in water.
Density and shape. It is easy enough to make a boat out of iron. We all know that Iron is heavier than water, but by shaping it we can make the shape so that its volume inside could hold more weight of water than its own weight. That way, it will float. If a materials density is less than the density of water, then it will float no matter what.
The structure of an iron ship is such that its density is less than that of water. Anything with a density less than water will float in water.