why does a pin float on water?

Answer 1

it has to do with the surface tension of the water. it acts like a thin skin. but if you were to spray a small amount of soapy water into the area the pin is floating, it would break the tension and cause the pin to sink.

Answer 2

A needle float only when you place it on an undistrurbed water. This is because of the surface tension. Water molecules attract each other producing this surface tension which apparentlly works like a thin film. However, even with this surface tension if you disturb the water, the needle eventually sinks

Answer 3

There's something called surface tension on the water's surface. it's basically an attraction between water molecules that forms a "floor". If you're light enough you won't fall through that "floor." your pin for example is not heavy enough to break the surface tension. many insects are also not heavy enough to break the surface tension, hence, they can literally walk on water.

Answer 4

Surface tension. The water molecules are attracted toeach other and tightly bonded forming a strong "skin" over the water. Ever see bugs walk on water? same thing.

Answer 5

depends on the density of the pen but ...

things can float on the surface of water even if their density is higher than water due to the surface tension of the water.

Answer 6

If you place it carefully on the surface, the surface tension may allow it to float.

Answer 7

Surface tension

Answer 8

Because it is lighter than the water in the same space.

Answer 9

It has less volume, mass, and density.