Advertisements
Advertisements
प्रश्न
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?
उत्तर
Mini’s tea would be hotter as compared to the air blown blew from her mouth.
APPEARS IN
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?
Can you think of any other way in which you use the warmth from your breath?
If you were to cool these three hot things – dal, roti, rice – in which ways would you do so?
Have you seen people playing different musical instruments like flute, dholak, been ...., guitar, mridang, etc. Can you recognize their sounds with your eyes closed? Find out more about these musical instruments. Collect their pictures too.
Take a glass. Bring it near your mouth and blow hard on it. Do this two or three times. Does the glass look hazy?
Count how many times in one minute do you breathe in and breathe out.
Jump 30 times. Did you feel breathless?
What was the difference in your count before and after jumping?
We blow to cool hot things as well as to warm them. Give examples of each.
Measure your chest
– Take a deep breath in
– Ask your friend to measure your chest with a thread. Measurement ____________
– Now breathe out. Again ask your friend to measure your chest. Measurement ____________
– Was there any difference in the two measurements of your chest?
