English

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? - Environmental Studies

Advertisements
Advertisements

Question

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?

One Line Answer
Advertisements

Solution

Mini’s tea would be hotter as compared to the air blown blew from her mouth.

shaalaa.com
Blow Hot, Blow Cold
  Is there an error in this question or solution?
Chapter 15: Blow Hot, Blow Cold - Blow Hot, Blow Cold [Page 142]

APPEARS IN

NCERT Environmental Studies - Looking Around [English] Class 5
Chapter 15 Blow Hot, Blow Cold
Blow Hot, Blow Cold | Q 2.7 | Page 142

RELATED QUESTIONS

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?

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.

  • Blowhard from your mouth onto your hands. How did you find the air from your mouth as compared to the air around you? Was it hotter, or cooler?

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?


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 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?


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.


What was the difference in your count before and after jumping?


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?


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?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×