Question

An eggs sinks in fresh water but floats in highly salty water.Give reason.

Answer 1

Because salt water is denser than freshwater, some things float more easily in the ocean—or extremely salty bodies of the water, such as the Dead Sea. You can make your own dense water by adding salt to tap water. In fact, if you add enoughsalt, you can make the water so dense that an egg will actually float in it!

Answer 2

$\huge \dag \mathbb{ANSWER:}$

• Upthrust acting on egg in fresh water is less than the weight of egg. Therefore, it sinks in fresh water. However, the density of salty water is much greater than the density of fresh water, so upthrust acting on egg in salty water is greater than the weight of egg. Therefore, it floats in salty water.