Structure of Atom | Class 9 Science Full Chapter 4 - One Shot | Chemistry | Target 95+

[@b60dilharanpalange62]

Sab acche teachers online hi kyo padhate hain ❤❤😔😔

[@kalpanachoubisa3314]

Yes , this is also a fact 😂

[@aarjit8021]

Aboustely right bro!

[@elitelegend3656]

Kyuki unhe KZbin se jyada pause milte hai .

[@krishnaji4198]

Ha yaar sahi baat hia

[@Anujkumar-kj7jg]

Because everyone should get a equal chance to study 📖 🙂

[@nitinpatel2070]

best way to learn who discovers parts of atom: ईंट पर नाच 1- ई: electron. ट: Thompson 2- प: proton. र: Rutherford 3- न: Neutron च: Chadwick That's funny but easy way to learn descovery 😎😂😂

[@susheelasharma8977]

Op bhai

[@bombgaming9826]

Nicee bro😂

[@shivamjaiswal8357]

Thanks a lot bro... 🙏🙏

[@zuhal7010]

Proton is not Rutherford it is also Goldstein

[@sayyaduzera9892]

Thomson ki spelling wrong hai aapki

[@mehaksahu407]

Now no one will know what the comment was........!

[@richard9549]

😂😂😰👌

[@MrSohan-ut3ww]

Tera baap

[@RishabhSingh-rq1gi]

Jaa be

[@misunamborang6536]

That's true

[@elyza4913]

No 👎

[@kartikeybadoni589]

Andi Mandi Sandi jo yaha se na pade

[@aarushaeron]

can we take a moment to appreciate that this all is completely FREE

[@anshgupta9528]

👍

[@deep77rajput16]

💯👌

[@Aditya_181_]

Not completely! 97%

[@himanshuraj6174]

No I can not take moment to appreciate , I am very busy

[@rubymoiz3031]

And yes we can 👍👍🤗🤗

[@YashSharma-l7u]

I never saw a teacher like you. Thank you sanjiv sir for teaching us .

[@ayush_07..]

I also want to see him 😢

[@jaishriram2674]

To complete these chapters it takes About 2 weeks in school while here it takes less than 2 hrs.... Watching your videos worth it My time really did not got wasted...

[@Nitesh_strongest]

yes

[@iproscreeningpvt.ltd.8820]

damn true

[@litlerockff2879]

2 weeks

[@litlerockff2879]

Come to my school

[@santoshkumarsharma622]

No it only take 3 days

[@harshop1920]

28:26 Sir isme mass ke liye P+N hoga which is 2+2 4 not no of proton 2 Edit:Thanks for 2> likes

[@harshkuma172]

U r right

[@harshop1920]

@@harshkuma172 thank you have a nice day bro love you 😘😘

[@pranavkrishnam2316]

bhai galti sab se hota hai ,itna bada stand lena sab ke bass ki baat nahi hai broo

[@pranavkrishnam2316]

btw teacher ki galti khoj diye 👍👍

[@harshop1920]

@@pranavkrishnam2316 wahi toh main baat hai ki sir se bhi galti ho sakti hai 😉😉

[@dankkrrish6780]

45:00 Ek banda aaya boht smart sa, mere jaisa😂😂

[@kurukshetragaming6541]

itne der jihl gye sabash

[@darakhshayasmeen]

@@kurukshetragaming6541 maine to pura jhel liya Haha😂😂😂😂

[@kurukshetragaming6541]

@@darakhshayasmeen badiya 😿👏👏

[@lyrical.ashish]

What the heck 😂😂

[@sid3942]

@@kurukshetragaming6541 jhelna padh rha hai bhai exams offline ho rhe hai :(

[@chandansinghnegiglasswork2004]

Thankyou sir aaj me tuition me test h mai specially subha 5 bje aapki ye vedio dekhne ke lie utha hu 😇or sir. Aap ek dam jhakas teach krte ho thankyou sir...

[@Xyz12763]

Ye tika hai kya jo apne lagaya hai apne gmail profile par

[@ayushirawat9639]

Are vo sabh to thik h par mark kitne aeee🤔🤔🤔

[@shahzadibegum4begum42]

Same

[@asgeneration1233]

your teaching skills are outstanding sir❤️you are the best❤️❤️ thanks for teaching us in a fun manner🔥 will meet you in 10th class

[@pujarigamingwithayushbhai3340]

I am in jds

[@darshanpotdar7654]

@@pujarigamingwithayushbhai3340 jds kya hai

[@crjaguar0736]

Excatly 🙋

[@shyamshah2508]

Actually sir at 28:28 you had written atomic mass of helium as 2 but it's 4

[@manishgorai3900]

U r right

[@surikavya6905]

Correct bro

[@rishabhvaish6686]

Abbey apna khud bhi to kux common sense lgaao😏

[@YOUR_SD_BOLT]

Are bhai itna nhi pata helium is exception

[@chandankumari7287]

Yep brother

[@Happyperson2132]

To remember who discovered e,p and n i have a good way to Remember/ learn it ....💜🖤🦋 Eta Par Nacho Eta = E- Electron , ta - J.J Thomson Par = Pa - proton , R - Rutherford Nacho = Na - Neutron. , Cho - J Chadwick 🦋🖤💜🤞

[@internationalplayboy6516]

Hey 💜💜

[@vqshal]

yaad toh kuch nhi hua par jo yaaad tha vo bhul gya, anyways thx for this

[@maahirahmad8889]

@@vqshal Samvage bhai 😆

[@Himanshukumar-ok4om]

@@maahirahmad8889 Bhai spelling sudharle

[@maahirahmad8889]

@@Himanshukumar-ok4om bhai tu normie h abhi tu nahi samjhega cheems 🌚😆🌚😆

[@tokosarah9811]

RECENTLY IM in class 12 taking Revision of class 9 n 10 class huge respect sir LAST YEAR OF SCHOOL LOOKING BACK AT THE GOLDEN DAYS TEARS FLOW OF FROM MY EYES Enjoy ur school days😊😊

[@kartikbisht1909]

9th ka phir se kyu padh rhe ho bro?

[@AlinawazKhan1508]

@@kartikbisht1909 may be she is preparing for Neet

[@vrindasahu5764]

@@kartikbisht1909 11 12 me 9 ke concept ki jaroorat pdti h 9 aur 10 basics rehta h 11 12 ka

[@lakshmiphanikumar9413]

guys pls remember in 15:22... atomic number is only the number of protons. in ncert...like sir said it is the holy book.. thank me later

[@poonamsingh2394]

Ok

[@songxfootball9775]

see my vedio for relaxation during study

[@Avantika_Amanat]

@@devanshladhave7666 electrons and protons ka number equal hota h

[@rashmichugh288]

u are d best teacher ever !! science was literally my biggest fear but u just make the concepts super easy!! tysm!!!!!

[@michaelgaming3013]

mr beast

[@Existing285]

@@michaelgaming3013 a fake one :)

[@aryanthakur8459]

@@Existing285 yea

[@Arjunraj-dj5iy]

The way you teaching is very nice i understood everything sir🙏

[@root......]

Soviet union is real

[@atozgyan1513]

ET PR NACH E FOR Electron Discovered by JJ Thomson p for Proton discovered By Rutherford N for neutron discovered by JAMES CHADWIK...😅

[@dwaipayansaha1227]

Proton was previously seen by E Goldstein later on the credit went to Rutherford

[@shivangisonara9842]

Et samajh mein aaya PR samajh mein aaya But ye nach kese?

[@dhruv2432]

28:27 the Mass Number of Helium should be four as a Number of Proton is 2 and Number of Neutron is 2

[@deadk2985]

Yeah

[@jigarlimbani4959]

Yes sir how it is 2

[@JackSparrow035]

Yeah

[@satsharansangha1763]

U r ryte

[@lilteemomo7147]

That's what i was searching in comment box😅he forgot about it!

[@shivamkumarshukla1832]

RASODE : THE TREND OF INDIA AMUL : THE TASTE OF INDIA CORONA : THE GUEST OF INDIA TIK TOK : THE WASTE OF INDIA EDUMANTRA : THE BEST OF INDIA DANT KANTI : THE PASTE OF INDIA ...........BY THE WAY READ MY NAME

[@urjaanvi1043]

Wow..nice

[@debulalnayak1426]

Wha ..kya baat boli h

[@singerbrogoutam]

Mst yar I have also like edumantra

[@shahmoomin3490]

Way Bhai wah...kya kaweeta kahi hain

[@shivamkumarshukla1832]

@@shahmoomin3490 😁😁😁

[@shivangisonara9842]

1:26:31 perfect Circle 🔴 skills✨✨

[@evil_uchiha5429]

1:35:35. Agar tum is pe click karte ho to Is ka matalab h ki tumhara video me deyan nahi h 🤔

[@bikramkumar7575]

Sahi bola be

[@ancient3973]

Lol , nice try

[@vishwanathprasadbind820]

28:26 sir it will be 4...2+2=4.. But the session was amazing 👌😍..cleared all my doubts..Edumantra is the best platform for students...

[@shashankkumarsingh2006]

Platform? 🤣🤣 beyond level English

[@stfu4473]

@@shashankkumarsingh2006 bro she's right but the thing is that she didn't use the word study It should be "STUDY PLATFORM"

[@PhoenixPlays2]

@@shashankkumarsingh2006 what's wrong there bruh

[@vasudevkeyboard5883]

@@PhoenixPlays2 year platform usually refers railway platform.. so she must refer Study platform.. Human makes mistakes

[@Amitchaudhary39-6]

Abe ye wala chapter magnet brain pe padhlo sab log bahut maja aayega

[@simranjitkaur298]

School teacher were teaching it as long as boiling milk and sir teached it as maggi noodles!!! 😅💓thanks alott sirrrr!!!!!!!!!!

[@user-qr8pq4hk5r]

But even maggi doesnt be made in 2 min

[@ThunderStormFortnite]

@@user-qr8pq4hk5r ok... 10mins then. still better than boiling milk

[@Theknight_]

@@ThunderStormFortnite 😂😂😂😂😂😂

[@anikanegi3943]

Shut up...

[@anikanegi3943]

Nobody cares about your opinion

[@aryansinha6373]

I am watching this video 2 day's before the exam .. i now understand every bit of this Chapter . Luv you Sanjiv sir

[@pankajpuniyani232]

Do you also have exam on 2nd March 😂

[@VishalSingh-dy6zx]

Sir

[@kanishkchessing7987]

Thank you sir for this epic explaination and also Happy Teacher's Day!!!!!

[@ranveerchoudhary1221]

Sir your teaching method is literally amazing

[@mochaOT7]

Fact is that everyone attention during lockdown was zero on the online classes and now coming here to prepare for the offline exams🤣🤣👊🏻tab online classes me aadha ghanta itna lamba lagta tha aur ab 1/½ hour ka video dekhne me koi problem nhi he qki kuch dimag me he hi nhi😆😆 dua kro ki ham exam atche se de👀🍃 This is life saver video🙂

[@rohithsaix-d412]

1:21:40 it was a good decision by rutherford (intentionally or unintentionally) to use the gold foil...because of the large no. of protons present in gold atoms (79) he was able to discover the positive charge here.....since 79 protons have a large mass compared to 2 protons (present in alpha particles)

[@photons.python]

This is THE BEST explanation, not kidding. I wish sir was my personal tuition teacher haha

[@rakkshitt_]

@Ridhima Saxena 🙄

[@class9thscience686]

1:35:00 sir apki smile kaati jeher lag rahi hai😎🙂🤭

[@inferno1067]

Sir, You went wrong while adding Helium's (protons and neutrons). It should be 4. 28:25

[@inferno1067]

@DSG GAMING 4, as we are adding protons and neutrons

[@tidseller5924]

Mass hai 2 sahi hai

[@stargamer2226]

Arey bro 4 atomic mass number he or 2 atomic number he jo ke sir bata rahe the

[@geetagupta2318]

Op

[@Satnamsingh-fh7qb]

Recently i am studing in 11th standard and the half of my 9th goes in covid....my juniors it's my advice to u all k inn sb cheezo ko ache se kro....covid ki vjah se hmne ise bhut lighly lia tha prr app sb yeh glti mt krna...oky👍

[@vrindasahu5764]

Muje khud ab 9 th pdni pd rhi vapas 😂

[@Satnamsingh-fh7qb]

@@vrindasahu5764 😅

[@PUPPETFF]

Same

[@sangamkumar8461]

Same here

[@dangergaming-kr3ss]

28:28 sir vo 4 hai ...... 2+2 ..... sir aap bahot acha explain karte ho

[@onestepthree5358]

Yup

[@stuti2963]

My school has been teaching electronic configuration since class 6 and now that i am in 9, i could finally understand it because of this video

[@zenonzardplayz9876]

Haha same here

[@shubhangishubhangi5654]

Which school?

[@shashankkumarsingh2006]

😂😂 it means your brain is 😁

[@harjotvirk686]

Same bro

[@acer9779]

28:28 the mass no. Of helium should be 4 2+2 =4

[@Meet222]

Great teaching sir 🙌🏻👏🏻

[@arpitakumari5532]

The way you explain is the best..😍 I am so interested in chemistry after learning all these... Thank you so much sir..helped a lot..🙏🙏👌

[@harsimrankaur8440]

Thankyou so much sir....each and every concept is clear💯💕

[@financearts1801]

yes its right 👍

[@adarshrajpoot4382]

Exactly 👍

[@damonsalvatore6381]

Hey

[@damonsalvatore6381]

Hey

[@dadrigo9831]

@@damonsalvatore6381 bruh

[@ankitgaur30]

Fun fact : sir's favourite element Na sodium

[@pragyadubey8170]

Thank you sir for teaching us this chapter

[@shivamkumarshukla1832]

Who are watching this video for the preparation of the exams 2020-2021. 😊😊😊 14

[@Kunalsaklani]

Obviously

[@HarshitK10]

Me hehe for tmrws exam

[@infinixshorts7864]

Ek dam sahi

[@Adityawarade2]

I am preparing for 2015-2016 exam Video is uploded 3mont before obviously it will for 2020-2021

[@VivekSingh-lw7nf]

Me darling

[@KrishnaSharma-uf4og]

sir because of you i love this chapter..😅 thanks sir

[@architsonkar2857]

😊😊Thank you sir and @EDUMANTRA😊😊 , I will watch this video second time and I will understand this concept very clearly

[@songxfootball9775]

see my vedio for relaxation during study

[@aniruddhbhadauriya1001]

Outstanding Teaching Skill Sir...✨❤️

[@ajaywagh25]

I loved Sir's T-Shirt :) :👈👈

[@syedrayhanali9307]

sir , you have written the mass number of helium 2 I think it should be 4 time : 28:57

[@YOUR_SD_BOLT]

Helium is exception

[@manojkumaragrahari8508]

Galti se sir ne likh diya gya ho ga

[@kavitapanchal521]

28:33 , helium mass no. Is 4 not 2

[@devanshsaxena1171]

Correct

[@gunjansingh4067]

He said hydrogen not helium

[@manasi647]

Thankyou for your videos now I am studying term 2 and in term 1 i watch only your videos and I got the highest marks in both (9th A&B)sections of my school .

[@santprakash2397]

Ooh

[@babbangupta3211]

Respect Sir🙏...Yuh Are the Most Best Science Teacher...Salute To Yuh Sir...🙏❤️

[@harshraj9179]

Mind blowing sir......thnkuhh❤️✨

[@manjusingh5529]

Guys best way to learn Your periodic table from 1 to 18... "Ha Hi Li Begam Badi Chalak Nikli Oh Fo Naye Naveli Mange Albeli Si Pant Salvaar Chali Agra" 😂😂😂 Mene to aise hi Yaad Kiya easy laga

[@rayanmohammad3859]

Very Interesting/important chapter🥰❤️

[@SHAKTIMONEYTRANSFERB]

30:28 mass number of helium is 4 not 2

[@Krishna12967]

2

[@arpityadav080]

Here sir was wrong it is 4 I am agree with you

[@snowwhite09859]

Yes

[@pranjitsarma1676]

Yes i was also thinking

[@sankalp188]

sir me school me 1% samajta hu, coaching me 40%, aur aap se 101%.... even for freeeeeeeeee😍....... sir, aap jaise teachers ko dil se THANK U

[@yashvardhan549]

Samajh Me To Sab Jagah Aata Hai Par Tution Pe Tum Time Pass Or School Me Makhiya Marte Rahte Ho Jab Test Hota Hai Tab KZbin Pe Aate Ho Sab To Samajh Me aahi Jayega Phir

[@zaupsi7776]

Papers are coming tabhi batti khuli

[@pratham1059]

@@yashvardhan549 facts

[@devendarkumar7085]

@@yashvardhan549 to tu bhi to yehi karta hoga vaise sab yehi karte hain

[@aanyaawasthi7778]

@@yashvardhan549 OP line betcche😂😂

[@doctorindia]

Kuan kuan keh offline exams hai 🙋 Mere toh hai bhai and just because of sir I am finally able to understand this chapter well what about you all......

[@swarannissankararao37]

You are explaining very well with patience 🤠

[@mayank8845]

Sometimes I feel that your favourite element is "SODIUM" coz whenever you want to explain using examples the first thing that strikes your mind is "SODIUM" 😂😂😂😂😂😂😂😂😂😂😂😂

[@mayank8845]

No bro

[@gaziyousuf636]

℮ммм

[@xbmrityunjaysengar5336]

Lol , I am also in 10TH B

[@raghavrchobby6688]

You have cleared all my doubts. Thanku sir ❤️❤️❤️

[@jawedalam9183]

One of the best teacher of class 9 and 10 👍👍😇😇

[@pogonite4137]

best part hai 1:35:19

[@sanyamjain7251]

Waah

[@pogonite4137]

@Sanyam 😂😂

[@jaishriram2674]

Sir ka fav element hai Sodium Sir includes it in every example😂

[@tarunjhawar4383]

And what about H2o

[@tanu___8578]

they both ate simple are teachers a re just give example of them !

[@AnilKumar-ri6gt]

Who are watching this video for the preparation of the exams 2020-2021. 😊😊😊

[@parthsrikanth2627]

stfu

[@raghav4591]

I

[@asankvats8470]

Hmm

[@AnilKumar-ri6gt]

Kis kis ko lagta h ki ye video dusri bar upload hua h !! 🤔🤔🤔

[@sbdancehub]

Thank u sir i understand this chapter fully Thank u sir

[@jaishriram2674]

Ye video dekh ke lagta hai ki Ab book se sirf numerical and qna dekhna baaki hai .. Baaki sab video dekh ke hi acche se samajh aa gaya👌

[@kuchhbhi7584]

yeh February hain aur yha padhai ho rhi hain because exam in march :(

[@officialarifrazatileswork4501]

🤣🤣🤣 Compound ban gya badhai ho ... waise superb teacher

[@pain__here]

All Best teachers in youtube from which I study. 1-Digraj Singh Rajput(S.S.T) 2-Sanjeev Pandey(Science) 3-M.K.R Classes Mandeep sir and Ranveer class 9th(Maths) 4-Shalini dilani Magnet brains (English) Who all study from them.👍🏻😊

[@RanjeetSingh-qv8gn]

Bhai u are undoubtedly right

[@gauravgaming8256]

Maths from prince sir (magnet Brains)

[@pain__here]

@@gauravgaming8256 ok

[@pain__here]

@@gauravgaming8256 chor diya unhone MB

[@gauravgaming8256]

@@pain__here maalum h 😭😭

[@kunjalpatel8526]

Amazing explanation 🙏🙏

[@yumndelicious9770]

:(: You Decide

[@yashvardhan549]

:(:)

[@jatin8137]

:)(:

[@atulsingh3472]

(:

[@ashbuttowski7638]

:/

[@princessumamah3017]

you literally made a perfect circle in starting

[@tanu___8578]

ha !

[@dropstaryt0859]

Mass no. of helium is 4 but you wrote 2 pause video on 28:28 😮

[@ourindia9408]

Awesome explanation Sir. Aapne mere sare doubts clear kar diye🙏🏻🙏🏻

[@thethirdeye378]

someone :what is perfect? me: the circle around "2" (4:50 )

[@availablepro3129]

Sir, PAN ka logic to dil toot diya 🪔 ♥

[@amary7729]

Sir kitne mehanat kerta ho😊🤗🤗

[@ahsansyed4768]

Thank you so much sir. You save my lot of time and clears the whole chapter in no time. You are one of the best teacher I have seen.

[@EduMantra007]

You are most welcome

[@Nitil_Chaudhary]

@@EduMantra007 sir big fan

[@anshgupta7557]

@@EduMantra007 sir jii please 9th physics cover krr do

[@ahsansyed4768]

@Balkeshwar Prasad Nitrogen and oxygen react at high temperature to form nitric oxide.

[@interstingfact2806]

@Balkeshwar Prasad N

[@Panchal369]

Hey!! I have a trick to learn these scientist a sentence in Hindi 👉👉👉ईंट पर नाच👈👈👈 in this (E)lectron - (T)homson (P)roton -( R)utherford (N)eutron- (C)hadwick Et pr nach 😂😂it teaches by my teacher

[@dtgamer6802]

Thanks for information

[@eduspike4118]

49:21 See the setup Incredible

[@davindersinghvlogs8346]

Im from 11th grade and have to watch this video definitely for strong concepts in chemistry

[@Ranjit__Yadav]

I m also bro

[@numanrather22]

topper log h yrr.... Badde log 🙂👍🏿:D

[@glitch7045]

Your teaching is good but you should improve your camera quality

[@techbesafe4332]

true

[@bruh-pz9vz]

same

[@deepakkumarsingh1058]

Sir u teach very well. I understand everything. Thanks sir🙏🙏

[@chaitnyadashpute1461]

My dream will always to study with you sir . Great teaching skill you have👍👍

[@RajkumarYadav-iu4fc]

Thank you sir for this brilliant explanation in no time 😊

[@kanchanchoudhary6545]

Suppose sir though the whole chapter and saw that camera was of and noting was recorded 😄😄😄

[@sanjaymanocha7808]

Bro u f**ked up SPELLING

[@paintingandcraftsss]

@@sanjaymanocha7808 yup he did

[@harsh__82577]

Thnku sir for such a good explanation ☺️☺️

[@pokeashgreninja7919]

Thanks Sir. You taught this chapter in a very Easy way.😊

[@agrimjain944]

Best teacher on KZbin 😊

[@shobhnaagarwal8573]

Thank you sir for this understanding video 👌👌👏

[@shashankkumarsingh2006]

English level 1000😂😂

[@shobhnaagarwal8573]

@@shashankkumarsingh2006... thanks

[@shashankkumarsingh2006]

@@shobhnaagarwal8573 most welcome deer 😂

[@Fantasytalk34]

Legends know while we pause the video to note down then the sir reaction 😂 is really 👌 😂 amazing 😅😅

[@WildEyes24]

The face

[@tanaysurana4660]

I want the notes for chapter in simple words 😅 Can you help me ?

[@ushachand4911]

Sir your teaching method is amazing 😍😍.

[@jaishnavgrover3498]

best expression of sir is waah kya baat ha 11:09

[@Chocolatewingz-l4u]

Sir your teaching style is too good 🙌🏼

[@Momo-lx7kx]

Best explanation in a limited time!

[@ZARSU848]

At 28:28 sir helium mass number is 4 instead Of 2

[@varun.2k4]

Tip:watch vedio on 2x speed to cover slaybuss on time 😂😁😉

[@ignite5266]

Bhai shi bola

[@Sanjaykumar-hz9mm]

Tu pakka fail hoega English ke exam mai.. Slaybuss nahi Syllabus hota hai😂😂

[@SEDITRyt]

@@Sanjaykumar-hz9mm aur vedeo nhi video

[@rajatporas3791]

Yep

[@varun.2k4]

@@Sanjaykumar-hz9mm samaj to aa rha hai n tuje my main motive is to tell u a fact if you are not interested then dont pass silly comments

[@jaiprakashmishra2243]

FACT : Sir's favourite element is sodium

[@khushipandey8285]

Ya😁😁😁😁

[@xbmrityunjaysengar5336]

Aur sir iron ko ion bulate hain 😂🤣😂😂🤣

[@naaz__shaikh6795]

Lol true 🤣🤣

[@siduram5731]

Why?

[@shashankkumarsingh2006]

@@xbmrityunjaysengar5336 are budhhu bhaes iron aur ion alag cheez hai Ramayan padh rha hai ram kaun hai pata hi nahi isko 🤣🤣

[@Shubham14]

🌹" Roses are red" " KZbin is too " "I got my first like" "But why it is Blue" 💖💖💖💖💖💖💖💖💖💖 Nice video

[@IWonderHow]

the idea is that atoms are the smallest and indivisible particles was a simplification based on early scientific understanding. With the advancement of particle physics, we have discovered that atoms are composed of smaller, more fundamental particles, challenging the notion that atoms are the ultimate building blocks of matter

[@himanshuchandrolpalas2637]

sir very nicely eplained im in 10th class but i cant undrestand what to do . my teachers tell me to first clear your basic then lern 10th science. i requested to all 9th students that learn very carefully otherwise your condition is like me