Why is it easier to swim in salt water than in fresh one? - Extra Education

Why is it easier to swim in salt water than in fresh one?

Salt is what makes water heavier. And the greater the density (weight) of water, the easier it is to float in.

An object can float in a liquid if its weight is equal to the weight of the water it pushes out (the water is displaced to give room to the object).

You can also look at it from another angle: if you sit in a tub of water, the water level in it rises. If you drain the water that your body has displaced, the weight of it will be equal to the weight of your body.

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Last Updated : Nov 16, 2021