describe an activity to explain air pressure
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Take good quality plastic bottle and fill hot water in it. now shake the water bottle for half a minute. ... when close the lid only some amount of air is in bottle. it is the difference in atmosphere pressure in huge amount that cause bottle to deform and get crushed inwards.
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5
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When a can filled with hot water is closed and is cooled down rapidly by pouring cold water on it, it will crush ins tantly. This experiment proves that there is a huge atmospheric pressure exerts on everything on the surface of the earth.
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