CBSE Class 5 EVS Revision Worksheet- Blow Hot Blow Cold (1)

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Revision Assignment

Class V- EVS

BLOW HOT BLOW COLD

1 Give reasons for the following

(a) Why we should always breathe from our nose and not from our mouth?

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(b) Why do we breathe faster after some kind of physical activity?

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(c) Why does coal burn further when we blow on it instead of dying out?

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(d) Why on a cold winter morning the mirror becomes cloudy when you blow on it ?

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(e) When we breathe out the diaphragm relaxes and rises up . Why ?

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(f) Why is it important to breathe well?

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Please refer to attached file for CBSE Class 5 EVS Revision Worksheet- Blow Hot Blow Cold (1)

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