Question

A steel needle is placed in water and found to float even though steel is denser than water, but when the water is heated the needle sinks.explain why

Answer 1

Explanation:

metal needle or paper clip has higher density that that of water. So when it is dropped into water, it falls down into the bottom of water. However, if we put it horizontally on the water with a lot of caution, it can float almost forever due to the surface tension of water.

Answer 2

Answer:

because water looses its mass

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