Karan had made an equipment with the help of a glass bottle, transparent straw and a piece of rubber (as shown in the picture). He rubbed his both palms and held the bottle tightly. He repeated the process 2-3 times. Why is the water rising inside the straw?
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Explanation:
Blowing up a balloon involves forcing additional air particles from your lungs into the balloon. These particles hit the inside walls of the balloon creating enough air pressure to force the rubber of the balloon to expand and the balloon to inflate.
The collision of these air particles with the walls creates a high-pressure environment inside the balloon relative to the atmospheric pressure around it. This is why when a balloon is released, the high-pressure air flows out of the balloon to the low-pressure air surrounding it: "Winds blow from high to low."
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