Question

what happens to a raw egg in saline water and fresh water

Answer 1

Adding salt to the water increases the density of the solution because the salt increases the mass without changing the volume very much. 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!

Answer 2

Answer:

Salty Science: Floating Eggs in Water - Scientific American Because the density of the egg is higher than the density of tap water, so it sinks. ... But, if you add enough salt to the water, the egg will actually float back up to the surface! Adding salt to the water increases the density of the solution because the salt increases the mass without changing the volume very much.