No.
No, your density does not change when you are in water. Your density is determined by your mass and volume, and it remains constant regardless of the medium you are in.
To calculate the water difference when the density changes, you would need to account for the change in volume due to the density change. Use the formula: Difference in water volume = Original water volume / Original water density - Original water volume / New water density. Multiply this difference in volume by the new water density to obtain the actual water difference.
No, pouring out some water from a bucket does not change the density of the water remaining in the bucket. Density is a physical property of a substance that remains constant regardless of the amount of that substance present.
Density = mass / volume. So if the volume changes, the density will obviously also change.
no
yes. the density of a element will not change only the mass and volume will.
The only way to change the mass of water would be to either add more of it (which wouldn't change it's density - density is an intensive property, not extensive) or to change the isotopes of hydrogen and oxygen in the water - thus getting "heavy water" such as is present as an intermediate materiel in the refining of tritium and as a moderator in some nuclear reactors.
Salt
Otters can change their density to either float on the surface of the water, or sink. Therefore, their density can vary.
The density of water does not change when the volume changes. This is because density is a proportion of weight to volume. The density of water changes with temperature, but is approximately 1g/ml.
Yes, the density of vapors is lower than the density of the liquid.
A change in density may accompany a Physical change. When liquid water becomes solid water, the solid water FLOATS; (is less dense) on top of its liquid form.Density itself is a physical property, not a change.