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प्रश्न
Miya Balishtiye was confused when he saw the woodcutter blowing on his cold hands to make them warm and on the hot potatoes to cool them.
- Have you warmed your hands in winter by blowing on them when they are cold? How does it feel?
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उत्तर
Yes, I often warm my hands in winter by blowing on them when they are cold. It feels warm and cozy.
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संबंधित प्रश्न
Miya Balishtiye was confused when he saw the woodcutter blowing on his cold hands to make them warm and on the hot potatoes to cool them.
- Now put your hands at some distance from your mouth, and blow again. Does the air from your mouth feel warm? Why?
If you were to cool these three hot things – dal, roti, rice – in which ways would you do so?
For what other things do you blow air from your mouth?
Picture 1 - Mini tried to cool her tea by blowing on it. Which do you think will be hotter – Mini’s tea or the air she blew from her mouth?
Make whistles of the things given below. Write in a sequence–from the loudest to the softest whistle.
– Wrapper of a toffee
– A leaf
– A balloon
– The cap of a pen
– Any other thing
Have you seen someone blowing on their spectacles to wipe them clean? How does the air from the mouth help in cleaning the spectacles?
Jump 30 times. Did you feel breathless?
Now again count how many times in one minute you breathed in and out.
We blow to cool hot things as well as to warm them. Give examples of each.
Can you understand from the movement of the snake - if the air is moving upwards or downwards?
