no ice floats on water
That depends on the relative densities of the solid and the liquid. If the solid is denser than the liquid, the solid will sink. If the liquid is denser, the solid will float.
The solid cannot float in this liquid.
Solid iron will float in liquid mercury. In most liquids it will sink.
An object float in a liquid only when the density of the solid is lower than the density of the liquid.
Wax.
Solid iron will float in liquid Mercury. In most liquids it will sink.
Walking on water is impossible, at least in its liquid form. It might be possible with "float shoes" or the like. It is possible to walk on solid water, and you've probably guessed that solid water is called ice.
It depends on the density of the solid, liquid, or gas. If the density is lower than water it will float. (Water's density is about 1). Also, if the volume of the solid, liquid, or gas is bigger than the mass then it will also float. It will sink if the solid, liquid, or gas's density is higher than water's density. :)
it's a solid
Yes, provided you have the metal in a solid form which can be shaped so it will float, and a substance which it is liquid enough to float in at that temperature.
It sinks in the liquid. A steel bolt has a density greater that that of water. Drop it in water, it sinks.
sink