There are two ways:
The stone is heavier than the same volume of water. In short the density of the stone is more than the water. So the stone does not float on the water.
If the can is empty, and you avoid water from entering it, it will float without any trouble.
A diamond sinks in water. There is only one stone that floats, pumice.
put in 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.
The stone is heavier than the same volume of water. In short the density of the stone is more than the water. So the stone does not float on the water.
A stone that can float on water is a pumice stone. Ejected from a volcano, and full of holes, it has been known to float.
Yes if it floats. Does Marble float in water? If not then the answer is no.
No. To get them to float they must be placed on something light.
the stone that never sunk in water is pumice. Because of its holes it can float easily across the water.
Diamonds do not float.
A pumice stone is light weight due to numerous trapped gas bubbles that can cause it to float on water.
If the object does not quite float in water, adding salt to the water might make the object float, yes.
Same as when these stones were in boat when the stone in boat ,water need more V to make float power the same weight as the stone's. so lower level when these stones are in water.
The molecules in a stone are packed together more tightly than the molecules in water-- the stone is more dense than the water is, so the stone sinks.
No. Only pumice (volcanic) stone can float.
That depends on the material of which the stone is composed. Some stones are so light that they will float in water e.g. pumice stone, while most others will sink in water.