मराठी

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

Advertisements
Advertisements

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.

  • 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?
एका वाक्यात उत्तर
Advertisements

उत्तर

On blowing hard from the mouth onto the hands, the air from the mouth feels hotter as compared to the air around.

shaalaa.com
Blow Hot, Blow Cold
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Blow Hot, Blow Cold - Blow Hot, Blow Cold [पृष्ठ १४१]

APPEARS IN

एनसीईआरटी Environmental Studies - Looking Around [English] Class 5
पाठ 15 Blow Hot, Blow Cold
Blow Hot, Blow Cold | Q 1.2 | पृष्ठ १४१

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?

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.


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?


Now again count how many times in one minute you breathed in and out.


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


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?


Stand with this snake below a fan. Look in which direction it moves. Take this paper snake to different places and observe its movement.


Can you understand from the movement of the snake - if the air is moving upwards or downwards?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×