Question

An egg sinks in water but floats in concentrated saline water. Why?​

Answer 1

Answer:

Because the density of the egg is higher than the density of tap water, so it sinks. When enough salt is added to the water, the saltwater solution's density becomes higher than the egg's, so the egg will then float! The ability of something, like the egg, to float in water or some other liquid is known as buoyancy.