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प्रश्न
If you were to cool these three hot things – dal, roti, rice – in which ways would you do so?
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उत्तर
Dal, roti, and rice can be cooled by keeping them in a broad container under a fan and also by blowing air on them from the month.
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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.
- Have you warmed your hands in winter by blowing on them when they are cold? How does it feel?
Fold a piece of cloth 3-4 times. Now bring it close to your mouth and blow hard on it. Did the cloth become warm?
Balishtiye saw that the woodcutter was trying to cool the hot potatoes by blowing on them. What would have happened if he had eaten the potatoes without cooling them?
For what other things do you blow air from your mouth?
Picture 2 - Sonu was feeling very cold. He kept blowing onto his hands. Now think and write, which will be cooler – Sonu’s hands or his breath?
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
Put your hand on your chest. When you breathe in, does your chest come out or go in.
We blow to cool hot things as well as to warm them. Give examples of each.
You have all heard the ‘tick tick’ of the clock. Have you seen a doctor using a stethoscope to listen to our chest? What do you think she hears? Where is the sound coming from? Is there a clock inside your chest that keeps ticking away?
Stand with this snake below a fan. Look in which direction it moves. Take this paper snake to different places and observe its movement.
