Take a glass. Bring it near your mouth and blow hard on it. Do this two or three times. Does the glass look hazy?

Monjur Alahi

Take a glass. Bring it near your mouth and blow hard on it. Do this two or three times. Does the glass look hazy?


0 like 0 dislike
3 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Yes, a mirror can also made hazy in the same way. On blowing air from the mouth on the mirror, the mirror becomes moist. The air blown from mouth is hot and the mirror is cold. The hot air that we breathe out contains water vapours which turn into tiny droplets of water when it comes in contact with the colder mirror. This makes the mirror moist and hazy. The air blown from the mouth is wet. 

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
One of a time put some things to eat in other parts of your mouth under the tongue, on the lips, on the roof of the mouth.

No you get any taste there?

1 Answers 1 views
Take a ‘clay pot’ or a ‘tin cat’ with a wide mouth. Make a small hole at the bottom of the can. Fill your can with soil.

Name of the seed: Mustard (sarson) The date of which you planted them: January 1,2008 The day you observe something coming out of the soil start filling the table: Date Height of...

1 Answers 3 views
Bring a water bill, look at it and tell.

This bill is from 10.07.2009 to 05.09.2009.

1 Answers 1 views
Blow hard from your mouth on to your hands. How did you find the air from your mouth as compared to the air around? Was it hotter or cooler?

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

1 Answers 1 views
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...

1 Answers 1 views
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.

1 Answers 1 views
Put your hand on your chest, when your breathe in, does your chest come out or go in?

On putting the hands on the chest, when I breathed in, my chest comes out.

1 Answers 1 views
Do people look at different kinds of work in the same way? If not, why is this so? Why is it important to bring change?

No, even today people do not look at different kinds of work in the same way. Most of the road cleaners, toilet sweepers etc. are still from some particular communities only....

1 Answers 1 views
If Eye is called Hand, Hand is called Mouth, Mouth is called Ear, Ear is called Nose and Nose is called Tongue,

correct answer is (C) Nose.

1 Answers 1 views
How many times the word ‘Jana’ occur in the Rigveda? (a) 75 times (b) 175 times (c) 275 times (d) 375 times

(c) The term ‘Jana’ occurs 275 times in the Rigveda. But Janapada is not mentioned. The term Rajya occurs only once.

1 Answers 1 views
X