PDF chapter test TRY NOW
Air is everywhere:
- Take an empty open bottle.
- Turn it, upside down.
- Now, dip the open mouth of the bottle into the bucket filled with water as shown in figure.
- Observe the bottle.
Experimental set-up
Does water enter the bottle?
.
Now tilt the bottle slightly. Does the water now enter the bottle?
Do you see bubbles coming out of the bottle or hear any bubbly sound? Can you now guess what was in the bottle?
That is why the does not enter the bottle when it is pushed in an position, as there was to escape.
When the bottle was tilted, the air was able to come out in the form of , and filled up the empty space that the has occupied.
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