Mary took two balloons.she blew air into one balloon with her mouth and she filled the other with the vapours of boiling water from a kettle . She released these two balloons and observed that the balloon with warm air rose higher than the other balloon. what did Mary learn from this experiment ??
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Answer:
Because vapour after some time cools down faster than hot air
Explanation:
She found that warm air rises up as it has less density and cool air comes down this is because cool air is heavier than hot air
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