Heat Class 7 & Combustion and Flame Class 8 | Class 8 Science Sprint

In today's Science Sprint session, we discuss Heat class 7 and Combustion and Flame class 8. The aspirants are advised to watch the entire video lecture for a better understanding of these chemical effects of electric current and electric current and its effects chapters. This session will mainly be around the most important topic of Combustion and Flame class 8 science and Heat class 7 science. Heat Class 7 | Combustion and Flame Class 8 | Science Sprint | Vedantu -
🤙📲💬 Get Expert Advice from your favorite Master Teachers Team - vdnt.in/xvi4V
🟡Avail all Exciting Vedantu Pro Courses here!
✅Pro Class 6 CBSE 2022-23
vdnt.in/zyAAs
✅Pro Class 7 CBSE 2022-23
vdnt.in/zyAAG
✅Pro Class 8 CBSE 2022-23
vdnt.in/zyAB2
✅Class 8th Foundation
vdnt.in/zyABp
📢 Join our telegram group: t.me/VedantuJunior 🔔
#HeatClass7 #CombustionandFlameClass 8 #ScienceSprint

[@VedantuJunior]

🤙📲💬 Get Expert Advice from your favorite Master Teachers Team - vdnt.in/xvi4V 🟡Avail all Exciting Vedantu Pro Courses here! ✅Click here for Class 6 CBSE :👉vdnt.in/y3EG2 ✅Click here for Class 7 CBSE :👉vdnt.in/y3EFy ✅Click here for Class 8 CBSE :👉vdnt.in/y3EF5 ✅Click here for Class 8 JEE/NEET Foundation: 👉vdnt.in/y3EEt Now you have the chance to chat with our amazing and energetic teachers DIRECTLY. Our Telegram group - t.me/VedantuJunior is filling FAST. ✅ Subscribe to Vedantu Pro Now: www.vedantu.com/course/pro?flow=marketing&Cin92HuoaE Use Promo code: NBPRO or YTPRO for Additional Discount!!

[@faizshaikh933]

I have asked a question of science combustion and flame activity column answer

[@user-qu5io1np8b]

Tatti

[@officialofadialone9485]

300 unliker

[@priyaraghatatevaidya740]

Mam then ignition temperature means jo bahot heat mei jalta hai Am I right If i m wrong then tell me

[@Aizen234]

Tatti

[@srishtichauhan9475]

26:48 class 8 ch 6 combustion and flame explanation starts very nice explanation ma'am thanks a lot

[@raghavendrakantheti8150]

Tysm!

[@himanshu-le6ud]

Thanks mait

[@yourbrother36]

@@abidmuzammil5016 tyyy

[@tetrahexgaming3108]

thanks very much

[@shinchunxc3185]

Helped me a lot😂🤘🏻

[@ezytechs4270]

For class 8 Combustion & Flame Starts in 26:50

[@tanishqdadhich1296]

Thanks bro 😊😊

[@aayushjha5025]

Bhai tu toh Vedantu ka pura fan hai yaar

[@aayushjha5025]

Har video m humara time bachata hai thank you so much

[@LmaoAft3r]

26:48 Class 8 Chapter-6 combustion and flame explanation starts very nice explanation ma'am thanks a lot.............

[@prakharraj155]

u copied from srishti chauhan

[@LmaoAft3r]

@@prakharraj155 :)

[@englishachieverschamps]

Mam really understood everything... Thanks🥰

[@jonakeychandra5988]

mam how to find ignition temp. of a substance ??

[@thefunshow6128]

Sweet boy 🍬🍫🍪🍦🍨🍧🥧🍬🍨🥧🥟🍱🍚🍧🥟🍕

[@abshorts5270]

Yes mam

[@darshanbhattad4824]

Thank you so much ma'am Great explanation 👌👍 And very helpful !!

[@shijusamuelm]

26:51 is Combustion and flames class 8

[@arushii1816]

Looking for this comment 🧐

[@sharmilabhansali4848]

Thank you 😭

[@sheetalnokhwal208]

Thanks so much

[@47kushugaming46]

Thx bro

[@taehyxie._.goodboyy]

THANKS :)...

[@vinayk4418]

Ma'am in convection process (Sea breeze) does the warm air captures the cold air place? 22:10

[@dalbirgoyat7259]

@Nabamita Bhattacharjee mam when u are getting next live class on KZbin for class 8th class

[@peeepeepoopee]

32:35 the ones who dont know whats inversely proportional is when one value increases one decreases we have it this year in maths:)

[@impetus6780]

When u have a lot of ego. Then knowledge will be less. When u have lot of knowledge ego will be less this is what inversely proportion

[@user-es6jy8yz2z]

Petrol ignition temperature is 280 Celsius

[@debasishdas4307]

26:48 class 8 combustion chapter starts

[@The-game-sea]

thank ful to you to help others 😂😂😂😂😂😂

[@SilverTheGod38]

The Ignition temperature of petrol is 280 Degree Celsius

[@yuvrajsingh1793]

No

[@haneenriyas1488]

thank you for giving answers for my doubts

[@mehaksharma7889]

Thank you Mam.this was an excellent explaination 💜

[@AnvBekkam]

First time seeing an army here💜💜💜

[@Angel-gc9cs]

Yesss 😂

[@Angel-gc9cs]

💜💜💜💜

[@everyonesbias0770]

Yes 💜💜💜 purple you 💜

[@everyonesbias0770]

Hey !!! Who is your favourite?

[@prashanth9873]

Mam I am from tamil nadu and I cant't understand hindi so pls avoid speeking in hindi often cuz at times any important stuff comes u change it to hindi and I get confused so pls mam a kind request mam thank you so much mam

[@ravidevre3873]

30:00 mam but the pen is made up of plastic and plastic is non-combustible material so how you can say that pen can burn rather it can melt at ignition temprature

[@yashgupta8826]

No it just a example

[@akhileshwarsingh443]

Thank you mam it helps me to get good marks in exams

[@visasvinz4825]

In rapid combustion you can even add that it happens with the help of a fuel that means you need to burn the fuel whereas in the spontaneous combustion you need not need a substance to burn it ,it will burn as soon as it is in the room temperature

[@abhaychoudhary9857]

Mam please can you make classes on reasoning also please mam

[@musicalvictim1526]

29:20 mam how is fire formed when we strike two stones together. There is no fuel in there..... pls confirm !! :-)

[@art_with_b1]

There is a spark and fuel is the dry grass

[@visasvinz4825]

Rubbing those two stones produces spark and when it is near the dry grass as there is less moisture it catches fire

[@anupmishra7575]

Because of friction...

[@littlemiceO-_._-O]

41:00 I literally laughed on your expression while raste pe aa jayenge

[@siddhihirapurkar4118]

U examplaided ignition temp very deep n nice

[@rajverma4243]

Hi

[@keharisingh8567]

Wowwww ma,am u can understand very nicely....thank you so much ❤️😍😘 ma,am

[@gouravsharda5268]

Namibia man you are my favourite

[@parthrao3560]

Mam I installed the vendatu but I do not show any videos of class 8 please tell what I do to show the videos class 8

[@desigcrafts5059]

Subscribe and see there.

[@ghulamjilanikhan6743]

Where is pdf

[@pradeepsir4591]

Thanks miss for teaching us so nicely that l can understand quickly ,,😃😃

[@9bc46yashrajsonwane5]

Realy

[@gurleenkaur2127]

Thanks so much for your help

[@radhikacybercafe1664]

apne acid rain and calorific value vala topic nhi krvaya for class 8 it is also in this ch

[@chandrasingborse3113]

you are the great teacher

[@hxrsh_1]

22:03 style of saying ok 😅😅😅😂😂😂🤣

[@reliableknowledgeyt2046]

Okay?🤓🤓😂😂😂😅😅😅

[@siddhimamishra8thditimishr737]

🤣🤣🤣

[@user-vs1zd1xm4m]

🤣🤣

[@spsharma2161]

mam the way of your taking is amazing

[@khushipikachu7289]

Ma'am what is different btw the incomplete or complete combustion you didn't explain this

[@bhoomisharma8770]

in complete combustion - the fuel or substances which burns completely in incomplete combustion - the fuel or substance which burns incompletely if u find any mistake then sorry as I m a student also .... [in English also]

[@arjunsingh9665]

in complete combustion the flame is in blue colour and incomplete combustion the flame is yellow any mistake so sorry

[@twilightbts7058]

Complete Combution - occurs when there is plenty of supporter of combution or O2, it burns Completely producing CO2, heat and light and leaving on residue behind. Incomplete Combution - occurs when there isn't sufficient O2, it gives out smoke,soot etc and CO.

[@halimakhatun760]

Mam you are my favorite 😚 and your explanation was sooo good thank you so much mam

[@vishalkamble6275]

nobita mam the best mam ever in vedantu,my whole syllabus is complete because of nobita mam

[@panavurmalia2237]

41:02 LOG SADAK PE AA GAYE XDXDXD

[@snehalpatil7306]

Mam please make 8 chapter- structure and functions

[@ayeshafatima5057]

Yes mam please

[@vlogs5242]

Yes ma'am please 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

[@nitik3597]

@@anushkasahni07 paisa....ye paisa....paisa ke liye .....dude

[@kavyaaaaa1210]

Ma'am, I want to ask that do we use fuel while lighting up a matchstick... Because according to me we just need heat and 02

[@zaeemabdullapc868]

Doesn’t matchsticks have a type of chemical present in the red part

[@siddhiyadav506]

Thankyou for explain mam

[@param9254]

Amazing

[@weeb2448]

can we use wood or petrol as a fuel for flame

[@rashiyadav154]

yes

[@mankirat.2801]

Yes

[@visasvinz4825]

yes we can

[@pxrth1v]

No we cant...we can only use mobile phones and ipads to burn fire

[@rashiyadav154]

@@pxrth1v What A joke :)

[@hareshvyas101]

One of the best teacher👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍👩‍🏫‍

[@rajababu..7866]

Your teaching style is superb

[@rubymishra8951]

Hello Ma'am here Riddhi talking with you

[@anubhavsharma841]

Thanks maaaaaam ❤️❤️❤️❤️

[@djlover9787]

Hii mam I am ritik yelne

[@snehalpatil7306]

Mam your teaching is very nice 😊!! I love your teaching 🤗😁

[@architachaudhary9676]

Please give me the link from where I can get notes

[@sunitaverma9936]

Amazing mam can you explain reaching tha age of adolescence. Plz plz plz

[@VedantuJunior]

Taken into consideration. Will do it.

[@manjupant8462]

@@VedantuJunior mam sir ne padhaya h vochapter ap padhaiye plz

[@gideonsarou3675]

It will be much better if all the explanation are taught in English, because I'm poor in Hindi language. I hope you will look into this matter. Thank you

[@JitenderKumar-li4px]

Yes mam you tech very well

[@neetusharma7311]

Great explanation mam!!

[@amartyasingh2388]

Thanks mam it helps me a lot in this pandemic...😊😊👍👍

[@lostboy31]

20:44 cloder water hahahahahahahahaha

[@MultitalentedNikita]

Wowwww

[@anusirisilla1113]

Thanks..Understood the chapter nicely...but didnt find the topic of fuel efficiency and burning of fuel leads to harmful products...but loved the class...

[@bhubaneswarbarik1526]

*Thank you so much mam for lockdown time*

[@nidhigaur9895]

Yess

[@PankajKumar-kk8mq]

Mam your teaching way and the way you make us understand is amazing thank yu for helping us

[@RavinderYadav-yj7mm]

Mam you are very good teacher thanks for teaching mam ✍✍✍✍✍

[@kulsoomaakther6344]

Your concepts are clear ( love 😍 you)

[@Ayushtistic]

Explosion has more intensity also

[@shaileshsananse2000]

But mam when we mix , hot water into cold water then hot water turn to normal temperature why this happens?

[@jessoup6338]

Because the Temperature from the hot object gets transferred to the cold object

[@GurmeetSingh-lv4ce]

Mam really understand everything

[@shruthict794]

ma'am what is calorific value of flame? If anybody knows please replay.....

[@ArtiSingh-os9yi]

Hi

[@ArtiSingh-os9yi]

Calorific value of a fuel is the heat liberated when one gram of fuel burns completely in oxygen

[@ArtiSingh-os9yi]

SI unit is joule per kilograms

[@ArtiSingh-os9yi]

Okay👍

[@shruthict794]

@@ArtiSingh-os9yi okay, thank you a lot.

[@jisanmasi9975]

mam why you see always left side of the camera

[@jisanmasi9975]

Yessssssss

[@satyamthakre3439]

Because mam is teaching the other live class

[@visasvinz4825]

To see if anyone has any doubt because on the left side there is the chat as it was live at that time

[@PriyalGupta-fg8gm]

U all are wrong she sees herself to make sure that the board is visible

[@shyambabushyam844]

Mam can you please make video on conservation plants and animals

[@honeymishra429]

Thank you ☺️ mam 😁 Nice explained 😁 I understand this chapter issly because of your help😁😁😁😁😁😁😁👍🏻👍🏻👍🏻👍🏻👍🏻

[@aadilashraf399]

How to download the pdf of this session

[@anilkumarshukla8534]

mam awesome

[@Wet_Bananan]

26:48 class 8 ch 6 combustion and flame explanation starts at

[@radheshyamgupta4872]

Mam you are best teachers for vedantu thanks mam

[@SurinderKumar-zz2ro]

Mam the way of your talking is amazing

[@jamiesathuluri]

29:33 yes mam aag ko bhi kuchh khaney ke liye chahiye 😂😂😂

[@allinone-eo3jl]

Ma'am how to download pdf of which you explained pls ma'am I want it.

[@anandbarbate6541]

Mam your teaching is amazing

[@dancerdiya8035]

Thank u mam u make our study easy

[@VedantuJunior]

All the best

[@dancerdiya8035]

@@VedantuJunior thanks mam 🤗🤗

[@yajat1176]

26:51 is for class 8 I saved your time 😀😊😊😊 Thank me later 😂,

[@jancyruby4625]

🤦

[@Rmp319]

Thanks

[@MrTrex7]

Thanks Man You saved my time 😁😁😘😘

[@Mayankstyle425]

You are not the only who tell us that class 8th chapter starts on 26 : 51

[@jaiprakashpanday191]

41:00 Dear ma'am, now-a-days we do. :

[@ashishaggarwal1026]

Awesome video , understood all my doubts and queries

[@sgoldymayer9847]

26:51 the chapter combustion and flame starts for class 8

[@vansh4979]

Thanks

[@yashmishra1779]

Thnks

[@cutiepiepets4849]

Thnks

[@visasvinz4825]

Thanks

[@amitsaini8516]

Mam what does inflammable substances mean ??

[@VShiksha21]

Inflaming substances mean which can not produce flame after burn because they burnt completely and no particle vapourise after burnt.

[@pearlpandey]

@@VShiksha21 ap ka bhi koi learning change hai kya

[@manukumari1379]

Thankyou .am

[@Ajitsingh-xl6bs]

Mam you teach very well

[@kuldeepsinghbhagu7805]

Mam mujhe description me PDF nhi mila

[@kuldeepsinghbhagu7805]

Please mam pdf dedo

[@madhurigupta4399]

mam all part is not covered here, fraction distillation is remaining and destructive distillation is also remaining NOTE:- PLS TRY TO COVER THE ABOVE TERMS

[@rashmikumari4707]

Thank you mam for best explanation.

[@Divleen_official]

Hello ma'am if you don't know the correct ignition temperature of the substances so why do you tell us with the wrong method mam please check before making it we want to learn all the concepts from vedantu only and you are only telling us wrong. How would it make our marks go better ma'am in this only video I am telling you please make sure that all the slides all the methods you're telling are correct and must be correct you are the master teacher here at vedantu please keep it in mind. And I hope everybody is agree with my point. I am not saying that you are a the teacher you are one of the teacher which sits in our mind and we get remember all the things from you this is just for telling you that I don't want to make your feelings go at the wrong side. Pls make sure of every thing 🙏🏻

[@weeb2448]

noice well explained

[@abhaypandey9424]

Mam why do we say that burning of fuels can cause health hazards

[@divyabhat1697]

Because it produces a harmful gas known as carbon monoxide which is really dangerous for human health Hope it helps 😊😊

[@abhaypandey9424]

@@divyabhat1697 thanks a lot dear

[@Pawansingh-ns6xr]

ma'am l want to ask that do use fuel while lighting up a matchstick... Because according to me just need heat and o2

[@shivanijagadambe-ixgrade280]

My favorite😍😍 nabadita mam

[@jeenajelu8406]

mam i cannot ask you any doubts through telegram its shown that writing messages is not allowed in this group

[@charansingh1511]

Maam in combustion and flame chapter we even require fule and ignition temperature (definition of combustion)

[@nilaydonda1983]

Hii

[@nilaydonda1983]

Oririkforur4 kigirldheopejdk2kwowksgeoamwiwbw9entogkwhwowmwiebrodjeonewoeioekwiwveiwmwo4vr9emowveorje9wnefw9wne9je9ebe9rjroejejejjrjrhrhhhhhhhhjekwownsudnd9sk19wkehe9ej8sks8sne8ebdirveonaozmzlajehfsmowjeodvfoeueiwbwidh8dksiwge9wjw9109193gr8e992t3osmidk😀😫😀😫😀🔊🔊✌😋✌😎😀😋🇮🇳🤩🇮🇳😭🇮🇳😘😀🤩😀😫✌😎🤐😋🔊🔊😀🤛😫😍😫🤛😀🔊👓🤛😍👓👓👓👓👓😋🏎👓🤐😎😅🤛😅😫🏎😉😅😉😑😆😎🤗😙😝😌😤😓🤤🤤😓😝😒😲😌🤤😠😱🤫😱🤢😇

[@nilaydonda1983]

Hjk

[@akhileshverma4473]

@@nilaydonda1983 lol

[@adorable082]

Thanks mam.... I have deeply understood this chapter

[@clubxheaven]

thNKU beta but its understood

[@adorable082]

@@clubxheaven Btw it's thanks not thnku

[@amarjeetmishra5390]

Nice teaching

[@tetrahexgaming3108]

40:29 we can pause and take screenshot

[@DevPatel-rs2fd]

Your a great teacher . I m byjus student and i was watching your video on combustion and flame you taught very nicely thank you ma'am I love you

[@DevPatel-rs2fd]

😘😘😘😘😘😘😘😘😘😘😘

[@ravidevre3873]

mam you forgot about CALFORIC VALUES

[@koshibhardwaj6913]

mam apne ye hi explaination 7 m bhi di thi naa mujhe yeh example bhut pasand h

[@kishonkumardas1500]

Mam is there any change of molecule in convectio and radiation

[@user-xv7sb8dh4g]

Hi