Question

What properties of water are demonstrated by water moving up a straw?

Answer 1

It doesn't narrates us about any property of water.

Explanation:

This is all about the pressure.

{pressure means number of particles of a substance applying force (by hitting) continuously on a unit area.}

When we suck in the air from the straw, the pressure in the straw decreases.

While the pressure at in the part of the straw where it is dipped in water is high.

So to balance the pressure, the water moves up into the straw.

{THIS IS ALSO WHY WE HAVE WINDS. AIR FROM SOME REGION RUSHES TO FILL THE EMPTY SPACES (LOW PRESSURE AREAS) CAUSED BY MOVING OF hot AIR UPWARDS AS IT IS LIGHTER THAT COLD AIR.}