We blow to cool hot things as well as to warm them. Give examples of each.
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Which one of the following characterises the cold weather season in India? (a) Warm days and warm nights
(c) Cool days and cold nights
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Which one of the following characterises the cold weather season in India? (a) Warm days and warm nights
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Write the names of five things whose smell you like and five things whose smell you do not like.
I like the smell of I don’t like the smell of 1. Food 1. Filth 2. Perfume 2. Death and decaying things 3. Flower 3. Drains 4. Cosmetic items 4. Gutter 5. Incense stick 5. Bad smelling chemicals
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Imagine that you were to stay alone in a small tent for two days and could take with you only 10 things. Make a list of these ten things.
If I would have to stay alone in a small tent for two days. I would take these 10 things along with me-cloths, sweater, blanked, torch, packaged food items, water,...
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Now put your hands at some distance from your mouth and blow again. Does the air from your mouth feel warm? Why?
When the hands are placed at some distance from the mouth and the air is blown again, this time the air from the mouth does not feel much warm. This...
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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?
Yes, the cloth has become warm.
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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?
Yes, I had once burnt my tongue on drinking very hot tea. When some food is very hot, I cool it by blowing on it, by keeping it in a...
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If you were to cool these three hot things – dal, roti, rice – in which ways you do so?
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 month.
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For what other things do you blow air from your month?
The other things for which I blow air form my mouth are: (i) For whistling (ii) For playing with a firki. (iii) On erasing on the notebook with an eraser the rubber particles...
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Can you name some things which produce melodious or pleasing sounds when we blow into them.
Some of the things which produce melodious or pleasing sounds when we blow into them are been flute, pungi, shehnai, banjo etc.
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