DOES AIR OCCUPY SPACE? (Amazing Science Games and Experiments)

Materials Required:

1. Funnel
2. Jar
3. Water

Procedure:

1. Keep the funnel on the mouth of of the jar and pour in water through the funnel; the speed
   with which the water enters the jar is very slow.
2. But the moment the funnel is raised a little higher, the water starts rushing in at a great speed.

This is what happens:

It is quite obvious. When water starts filling the jar through the funnel, it exerts pressure on the air trapped inside the jar, and as such, the air does not get an easy escape. Through the funnel is placed on the jar in such a way that it covers the mouth of the jar almost fully yet, since the covering is not airtight, the air inside manages to get a little opening to escape. Hence, the speed with which the air inside the jar goes out remains equal to the speed with which the water fills the jar. Thus, when the funnel is raised a little higher, the air inside the jar gets a free outlet to escape. It is though this outlet that water wades its way through the air in the jar by pushing it out with a great speed, quite unobtrusively.