Certain:
An object heavier than water usually sinks to the bottom.
If you gently place it on the surface however, it might float on the surface due to surface tension.
This can obviously not be attained with something like a brick.
You need something small like a needle to get to see this effect.
Not certain:
My guess is that this has something to do with hydrogen bridge bonds. (Something similar to a chemical bond but far weaker.)
"surface tension"
Surface tension.surface tension does
Due to the property of surface tension water surface would act as a stretched membrane. So water skaters, mosquitoes could easily walk on the surface. If oil is mixed with water then surface tension would fall and mosquito cannot breed. That is why we sprinkle oil in fine droplets on stagnant water
Water surface tension hold the needle on the water surface.
The surface tension of water is responsible for the cohesive properties it exhibits. For example, capillary action is a consequence of surface tension.
surface tension
surface tension
surface tension
chemical bond
Surface tension.
surface tension
Water forms hydrogen bonds, which gives it a strong surface tension.
Surface tension
Certain insects (ones with a very light weight) are able to walk on water as their weight does not break the surface tension of the water. Water has a very high surface tension, therefore easily breaking and not supporting weight above a certain limit.
Surface tension.
Its "surface tension".
The property that causes water to form beads is called surface tension.