Question

Why we cannot break a stream of water when we open a water tap?

Answer 1

It is a result of the structure of the molecules. They essentially 'stream' around the item you're cutting the steam with, you have a blade which you plan to cut the stream with. All the water does is kept running along the sharp edge and keeps on falling downwards.  

Most fluids are difficult to 'cut' because of how their iotas are masterminded and their unreservedly mobile nature

Answer 2

"We can’t break the stream of water when we open the tap because

1. We know that water is a liquid and its molecules are loosely packed compared to the solid. So, water being a liquid shows the nature of fluidity and not the rigidity.

2. Moreover, due to gravity the water rushes out with a heavy force from the tap. Hence if any object placed in its path it rushes out with greater force and object is thrown away. "