Eggs will not float in clear water, but eggs will float in salt water. This is because the density of eggs is less than the density of salt water, so the eggs will float on top of the salt water. When adding water to the salt water, the density of the salt water will continue to decrease. When the density of the salt water is less than the density of the egg, the egg will sink.

According to physical knowledge: F float = ρ liquid gV discharge.

When the volume of the egg remains unchanged and the density of the liquid increases, the buoyancy increases accordingly. Adding salt to water will increase the density of the liquid, so eggs will float in salt water. In other words:

1. The density of salt water > the density of eggs, the eggs will float.

2. The density of salt water = the density of eggs, then the eggs are suspended in the liquid.

3. The density of salt water is less than the density of eggs, and the eggs will sink.

Cause

Because the upper and lower surfaces of the object are at different depths in the liquid (or gas), they receive different pressures from the liquid (or gas). The upward pressure on the lower surface is greater than The downward pressure on the upper surface, and the difference between these two pressures creates buoyancy. The amount of buoyancy is closely related to the amount of liquid (or gas) displaced by the object.

Take an object immersed in a liquid as an example. Since the liquid will generate pressure, and the pressure increases with depth, and there is pressure in all directions inside the liquid, the liquid on the bottom surface of the object will move upward. The pressure on the upper and lower surfaces of the object is greater, and the downward pressure of the liquid on the upper and lower surfaces is smaller. The pressure difference between the upper and lower surfaces of the object is expressed as vertical upward buoyancy. The pressures on the sides cancel each other out.