no you do not. But you can. A drop of vinegar helps!
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No, you do not need hot water and salt to make an egg float. Adding salt to water increases its density, but the egg can still float in regular tap water because it is less dense than the water.
To make an egg float in water, you can increase the density of the water by dissolving salt in it. When you add enough salt, the buoyancy of the water increases and the egg will float.
an egg can float in salt water.
that the water with salt well make the egg float
An egg will float in salt water because the increased density of the salt water makes it more buoyant. In tap water, the egg will sink due to the lower density of the water compared to the egg.
salt water