Combustion and Flame Class 8 Science in One Shot | NCERT Solutions Class 8 Chemistry | BYJU'S
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- Опубликовано: 23 авг 2022
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Hey Students! Want some help with revising CBSE Class 8 Science chapter 6: Combustion and Flame?
Join this Unit Test League Series. In this online class, your favorite BYJU’S educator, Kriti Ma’am, discusses important concepts in your class 8 Science chapter, Combustion, and Flame. This online session will help you to revise and remember all the important concepts in the class 8 science chapter, Combustion, and Flame. You can also self-evaluate your preparation progress for the upcoming mid-terms.
Some of the topics covered through this online class are as follows:
- Types of Combustion
- Inflammable Substances
- Structure of a Flame
- Fuel Efficiency
The substances which burn in the air are called combustible. During the process of combustion, heat and light are given out. Ignition temperature is the lowest temperature at which a combustible substance catches fire. The substances which have very low ignition temperature and can easily catch fire with a flame are called inflammable substances. Examples of inflammable substances are petrol, alcohol, and Liquified Petroleum Gas.
Find this session helpful? We have similar class 8 science video lessons on our BYJU’S - class 6, 7 & 8 channel. Subscribe now to our channel to get access to all of them.
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And don't call any one name
Half of the time is gone there only
Yes I agree
Pudikalana paka tha
Byjus if you like my comment I will buy your subscription 39:24 39:24 39:24 39:25 39:25 😂😊😂😊😂😊😂
Mam sorry to say but please make us understand the concept . Instead you are concentrating on the chats over there it is totally distracting me
I agree
Me too
Yeah
Yaaa
Right
The substance which get ignited (catch fire ) near a flame are combustible substance
2. The substance which do not catch Fite on bringing a flame near them or on placing them on fire are non-combustible substance
Thank you mam for your great session it was help for me🥰👍👍
9:25
Our skin,bags,books,thread,sticks,
papers,plastic, oil,petrol,cng,fuel,lpg,
electricity,matchstick, candle,insent stick,etc...
Mam
I can't understand
Mam I am don't understand what is combustion
38:20 outermost
Mam if bricks, glass and sand r non-combustable substances, then how do houses catch on fire and ive seen some totally burn down so hows that possible?
Kyuki jabb house mai fire lagti hai toh temperatures bahut jaada hota hai jiske karan bricks jalte toh nhi hai par gir jarur jaate hai and agar bricks utne height se girte hain toh toot jaate hain jiske karan Ghar pura khatm ho jaata hai.
Great session i undrrstand all concept nicely😊😊
Mam , This was very helpful for me .
I found this class as the best
Glad to hear that Laxmi🤩 Keep watching!
Mam you are great I understand all the topics ❤️❤️❤️
very helpful and interesting session.😇
😊
The substances which catch fire easily are known as combustible substance
good mam
😀
hi mam I really loved this session …this is the best platform to learn and get good marks pls do more lessons in maths and science mam … thank you 😊😊
Hello Suriyakala, Thanks for sharing your thoughts🤩 Glad you are enjoying the sessions! Keep watching🙌
The session actually started at 4:39
BYJU'S is the best learning platform😊😊
It's crystal clear Ma'am, I am so confident to write my exam tomorrow . Thank you for your efforts !
Your explanation is best like you
Mam non luminious zone is use
Mam what is combustion
Ch15
😊😊😊😊
👍🏻
☺
So if we are taking blanket so we are safe from fire
23:04
❤
39:03✨
5:34
Hi man
Yes
The substance easily catches fire
👍
presence of oxygen,combustable substance low ignition temperature
Thankyou for the session I got 48/50 for my test
Thankyou mam
🎉
Ready mam
love ur teaching mam it is the best thank u so much it helped me a lot
😊❤😊😊
Ma'am gunpowder is also an example of combustable substances
Ma'am app concept se jada comment me dhayan dere ho (emoji me bhi)😅
Point hai 👋👋👋 padai disturb ho rahi hai
I like it
combustible is that subtsance that is burn easuly
Coal and petroleum please
yes mam
Thank you mam
the subatances catch fire easily
blue yellow black
Mam what gas has fire extinguisher have because it stops increasing of fire?
Nitrogen..
Thanks for this session mam ❤😊
41:44 yes
hlo
Paper catch fire easily
mam please explain spontaneous combustion again
❤❤
Ma'am can you repeat h previous topic
Outermost zons blue colour😊😊😊😊😊😊
Fuel
YES MAAM
26:19 kerosene
😊😊
yes teacher
Mam actually ......when other asking from me .....what is the best plateform for study... And I answer byjus byjus... ...I really love your classes mam ......mam I attending all classes in youtube amd liked your videos ...and I also subscribe your channel......thank you mam for this amazing class
English grammar classes bhi lelo inse phir 😅😂
😂😂
Mam sodium metal is which type of combustion
Nice
12:22 😮
Carbon monoxide
Yes mam
30:00
Answers of question asked
1. Material which can catch fire easily or rapidly are Combustible substances.
2. Carbon monoxide. 11:41
3. Paper 12:37
4. Rapid, Spontaneous and Explosion combustion.
No catch fire easy example wood
mayank 🔥🔥
🌍
You are amazing
12:39
Paper will burn fast 🔥🔥🧨
Paper
3
Innermost zone
14:20 14:22 the car how it burn 😢😢
Very understanding video thank u so much cute mam 🥰☺💞luvvvv u ....
41:51 2000 ans
❤❤❤❤❤❤❤❤❤❤❤❤
6:45😊
Mam ch 15
Some natural phenomena ?
HIII MAAM
Their is anyone who doesn’t listen at class and come hear
Which can be burnt
Mam so u mean immfable substance and flammable substance the same
Very nice leturce
I got fullmarks in exam tysm byjus ❤❤❤❤
coal and petroleum one shot plz
Form extinguish
Electric current
Electricity 🔌🔌
Hi mam
mam taught well but the chat is soo nerdy🤓
Electrical equipments
🎉🎉🎉🎉😊😊😊😊
Mam please tell me 7 lesson
mam can you tell me what is flame ?