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प्रश्न
Count how many times in one minute do you breathe in and breathe out.
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उत्तर
On counting, I breathe in and out about 20 times in a minute.
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संबंधित प्रश्न
Can you think of any other way in which you use the warmth from your breath?
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?
Have you ever burnt your tongue when you ate or drank something that was too hot? How do you cool some food when it is too hot?
Can you name some things which produce melodious or pleasing sounds when we blow into them?
Have you seen someone blowing on their spectacles to wipe them clean? How does the air from the mouth help in cleaning the spectacles?
Put your finger under your nose. Can you feel any air when you breathe out from your nose?
Jump 30 times. Did you feel breathless?
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?
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?
Do you want to listen to your heartbeat? Take a rubber tube as long as the distance from your shoulder to your elbow. At one end of the tube fix a funnel. Place the funnel on the left side of your chest. Put the other end of the tube to your ear. Listen carefully. Did you hear a dhak dhak sound?
