Heat | Full Chapter Revision under 30 mins | Class 7 Science

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[@aasthamathur5571]

We cannot measure human body temperature with laboratory thermometer as it has no kink or constriction which prevents the backflow of mercury in Clinical thermometer.

[@cookeryworld123]

Only legends are watching one day before exam at night🎉

[@faisalmohdfzb]

😂

[@Sakshi-oi5kv]

🤣🤣😂😂 I am gonna be die💀💀

[@sidhantproend5784]

woolen clothes don't allow heat to get reflected and keep the heat trapped in the cloth.

[@reenayadav2434]

We can't measure our body temperature with laboratory thermometer because
In laboratory thermometer kink is absent.

[@MeshwarGagain]

Thankyou so much sir for the wonderfull explanation ❤

[@diyajainclass4thb45]

Thanks for the video sir ❤❤🎉🎉

[@Designingwithnamarta7879]

7:15 -7:20
QUESTION:- WHY WE CANNOT USE LABORATORY Thermometer TO MESURE OUR BODY TEMPRATURE
ANSWER:- A lab thermometer can't be used to measure body temperature as it does not have a kink. The kink, in a clinical thermometer, prevents mercury levels from falling on its own so that temperature can be read even when the thermometer is no longer in contact with our body.

[@decodingyt6677]

ya it is right given three marks

[@decodingyt6677]

nice

[@Bhel2007]

We cannot use a laboratory thermometer to use a body temperature as the availability of Kenk whereas kenk does not let the mercury fall instantly which laboratory thermometers don’t have
Because for measuring body temperature we need to wait for a minute and let not the mercury fall

[@viskitty6830]

Minor advice it's kink not kenk

[@shekharkaushik2417]

❤❤❤❤❤

[@Itz_me_anju_]

❤❤❤😊

[@StudyLover_12]

Thanks for this video ❤

[@priyankakaw]

Amazing video

[@sakshamnagar9csn179]

Sir please cover ch - reproduction in plants and transportation

[@RajatJuneja-pk7rj]

They are already covered by Aishwarya ma’am

[@user-yb2iq7xc9b]

We can't use a laboratory thermometer to check the temperature of a human body because it does not have kink and we won't be able to find our temperature.

[@ZaZa-mb1wd]

Because the Laborartory thermometer doesn't have a kink, so the temperature rapidly falls down after we take the thermometer out of our mouths.

[@RahulMulimani-fk8yw]

Sr, i didn't understood "Convection in nature "😢

[@Rajvir-rk4ef]

Thnx so much sir ❤❤

[@srushtibevinakatti1020]

Sir byjus is very good 😊😊😊😊❤

[@rameshkansal]

Sir kya coolness bhi energy hai

[@sandhyamiryala7650]

🏆🏆🏆🏆🏆🏆🏆

[@user-zg5qx7is5m]

how do we measure the body temparature of animals

[@TocaFree7]

I am actually watching it one day before my sci annual xam❤

[@RajatJuneja-pk7rj]

Oh best of luck 🤞

[@RajatJuneja-pk7rj]

Best of luck 🤞 , mine is on monday

[@llamayessir1963]

Ok

[@rasmirekha1163]

Aur saw😅

[@rameshkansal]

There is no kink in laboratory thermometer

[@afshinshaik]

c. Both statements are correct

[@Sanjana_gowda161]

Sir do this type for class 8th class 8 students like 👍👇

[@entertainmentwithsanaahand7265]

people who are watching the video for understanding and notes making. 👇👇👇👇
btw GREAT video Sir!

[@srushtibevinakatti1020]

Sir how many metres sun is far

[@OmSarap-eu6kv]

Hello 👋

[@elinmary]

It doesn't contain kink

[@namanahuja1703]

happy birthday sir ji

[@dangerAviYT]

ANS C ALL STAMENT ARE CORRECT

[@DAKSHESH79]

1 ans (c) °celcius
2 ans. We cannot use a laboratory thermometer for measuring body temperature because a lab thermometer is very long and has a wide range of measurement (degrees from -ve to +ve) and is difficult to handle.
3 ans (C) Both the stament are correct

[@LexiNoharaew]

I think we also have to add the kink part in answer 2, right?

[@DAKSHESH79]

My question.
but at night sea water will become very cold ❄️❄️ then how warm air from sea moves towards kand?
Name = Dakshesh

[@mandritadana4974]

Your question is only wrong

[@DAKSHESH79]

@@mandritadana4974 you didnt understand the question

[@kavidance2291]

Ans : option c

[@navneetissar-km3cd]

Sir

[@EchoSphere7]

Kink

[@sharmiladeb3228]

We cannot use laboratory thermometer to measure our body temperature because it doesn't have the kink
So when we will take out the laboratory thermometer outside of our mouth after measuring the temparature will fall down rapidly
Secondly the laboratory thermometer is very long so it is difficult to handle

[@visheshyadav6701]

😢😢

[@visheshyadav6701]

😢😢

[@visheshyadav6701]

😢😢

[@ahmedpasha9037]

But it's not there for our final ❤exam

[@PTvivek7380]

It is there for me

[@murlygovin5011]

sir speak in English

[@radhikatanwar189]

Sir you give homework but why don't you give answer i think you also don't known

[@rashmibhammar213]

So rude