ALL CHAPTER REVISION FOR HALF YEARLY EXAM | Class 8th Science | NCERT Covered | part 1

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  • Опубликовано: 19 окт 2024

Комментарии • 100

  • @palak.........5750
    @palak.........5750 28 дней назад +2

    Crop production and management
    • The same kind of plants which are cultivated at one place on a large scale is called a crop. Ex-crop of wheat means that all plants which grows on the field are that of wheat.
    ------------------------------------------------------
    Kharif crop --The crop which are sown in rainy season are called kharif crop. This crops are grown in the beginning of monsoon season june to july and harvest at the end of monsoon season september to october. This crops are not depended on monsoon rains for their growth ex -paddy, soyabean, groundnut ,cotton etc.
    Rabi crop --the crop which are sown in winter season is called rabi crop. This crops are sown in the beginning of winter season sep to oct and harvest at the end of mar to april. This crop are not depended on monsoon rains for their growth. Ex-wheat, gram, pea , mustard, soyabean etc.
    ____________________________________
    Preparation of soil --It is the first step before growing a crop one of most imp step is to turn and loosen it. It is done by plough, hoe and cultivator
    Sowing -- we prefer those type of seed which give high yield.
    Adding manure and fertilizer--the nutrient which are added in the form of manure and fertilizer to the soil.
    Irrigation --the supply of water in a regular iterval of time ia called irrigation. There are some model and traditional method and they are
    • Traditional method
    1) dhekli 3) chain pump
    2) rahat 4) moat
    Protection from weed
    The underisable plant which are grown along with crop are called weed and they control by using manual method and chemical method.
    Chemical like weedicides.
    Manual with hoe.
    Harvesting --the cutting of crop after it is mature is called harvesting.
    In this threshing and winnowing
    Threshing -the seperation of grain seed from chaff is called threshing. The seperation of grain from chaff is called winnowing.
    Storage --the harvested crop needed to be stored is called storage.
    Granaries and silos.
    ⭐Animal husbandry--the caring and rearing of animal is called animal husbandry.
    2) rahat

  • @ritanjalirauta8805
    @ritanjalirauta8805 16 дней назад +1

    17:13 sir my name is Debasish Rauta for pronunciation purpose:देबाशीष ❤

  • @Jha-zv4xe
    @Jha-zv4xe 4 месяца назад +8

    Sir make video on important questions

    • @sapna4967
      @sapna4967 4 месяца назад +4

      I am with u

  • @palak.........5750
    @palak.........5750 28 дней назад

    1) House hold 2) commercial 3) medicinal use 4) cleaning up the enviroment

  • @HarshRathore-w5y
    @HarshRathore-w5y Месяц назад +2

    underrated channel 🙂keep it sir(bhaiya)🤝🏻🗿

  • @PrashantKumarSahil
    @PrashantKumarSahil 20 дней назад +1

    Thanks sir 😊😊

  • @MoHaneef-d2l
    @MoHaneef-d2l 4 месяца назад +4

    Sir my name is farman sir you are the best teacher of this world 🌎 sir I want to become a MBBs doctor in my life therefore I am studying with deeply sir please motivate me in comment I will support you i love you sir ❤❤❤❤❤please reply me 😊😊😊😊

  • @sulagnadash3080
    @sulagnadash3080 4 дня назад

    1 st making of curd and cake
    2nd making alcohol and wine
    3rd making of antibiotics and vaccine
    4th cleaning the environment

  • @swapankumarbarik1729
    @swapankumarbarik1729 4 месяца назад +2

    Best teacher

  • @ryanraj9948
    @ryanraj9948 Месяц назад +1

    very very thanku sir tommorow is my science exam thank u for ur help

  • @Ankit-so7zi
    @Ankit-so7zi 3 месяца назад +1

    Thankyou sir for explaining 😊

  • @SharvanKumar-s7g
    @SharvanKumar-s7g 2 месяца назад +2

    Lactobacillus bacteria help in setting of curd

  • @sulagnadash3080
    @sulagnadash3080 4 дня назад

    Lactobacillus helpful for making curd.

  • @AryanKumar-x3f6g
    @AryanKumar-x3f6g 3 дня назад

    Think sir

  • @MoHaneef-d2l
    @MoHaneef-d2l 4 месяца назад

    Microorganisms are used for
    Making house hold products
    Commercial use
    Medicinal use
    Environment Benifits ❤❤❤❤❤

  • @skarmalotus20
    @skarmalotus20 4 месяца назад +2

    1:45:18 thank you sir

  • @U.t.-bg6gt
    @U.t.-bg6gt Месяц назад +2

    Sir aap kaha rehte hai?

  • @aryanmalara9447
    @aryanmalara9447 Месяц назад

    Preparation of soil
    Sowing
    Adding manute and fertilizer
    Irrigate
    Weeding
    Harvesting
    Storage

  • @Jashan_art_gallery
    @Jashan_art_gallery Месяц назад +1

    1:06:18 😂😂

  • @MoHaneef-d2l
    @MoHaneef-d2l 4 месяца назад

    International union of conservation of nature

  • @MoHaneef-d2l
    @MoHaneef-d2l 4 месяца назад +1

    Sir i looked this video till end ❤❤❤❤😊😊

  • @dygupta1921
    @dygupta1921 4 месяца назад +2

    Our jounier you can follow sir blindly . He teach very well .we studied our 8th class from sir and i score very good marks ❤

  • @TabassumBano-o3w
    @TabassumBano-o3w 28 дней назад

    Thank youuuu ✨

  • @skarmalotus20
    @skarmalotus20 4 месяца назад

    Sir good edit and hard word for student

  • @Jha-zv4xe
    @Jha-zv4xe 4 месяца назад +2

    Lactobacillus

  • @akankshaAmy
    @akankshaAmy Месяц назад

    Gitranshi 🎉

  • @rinkiadhikari9420
    @rinkiadhikari9420 Месяц назад

    Lactobacillus
    😊😊

  • @akankshaAmy
    @akankshaAmy Месяц назад

    18:04

  • @umedjadeja5447
    @umedjadeja5447 2 месяца назад

    Tx🎉😊

  • @PoojaKumari-h7s5u
    @PoojaKumari-h7s5u 4 месяца назад +3

    Thankyou sir ❤

  • @Paintland_of_riya
    @Paintland_of_riya 28 дней назад

    Sir live class kab lenge

  • @Ankit-so7zi
    @Ankit-so7zi 3 месяца назад

    Sir mene ch combustion and flame padh rha tha mene apse adha ch padha fir socha baki baad me padh lunga ab thoda book read kar leta hu jab mene book khola to dekha mostly ch complete ho chuka hai 😂

  • @missfactraj4100
    @missfactraj4100 4 месяца назад

    Agricultural practices
    1.preparation of soil
    2. Sowing
    3. Adding manure and fertilisers
    4. Irrigation
    5.weeding
    6. Harvesting
    7. Storage
    Thank u sir for this video😊💖

  • @MohitSingh-zw8sb
    @MohitSingh-zw8sb 4 месяца назад +3

    Sir can you teach us Maths also

  • @Luckychaudhary5677
    @Luckychaudhary5677 4 месяца назад +4

  • @SONALIPandey-dt9qe
    @SONALIPandey-dt9qe 4 месяца назад +2

    Thank you so much sir

  • @swapankumarbarik1729
    @swapankumarbarik1729 4 месяца назад

    Biosphere reserve samaj nahi aaraha hai

  • @hack_developer-s1
    @hack_developer-s1 Месяц назад

    1:45:51 it means I'm legends 🗿🗿

  • @mahadeventerprises1001
    @mahadeventerprises1001 4 месяца назад +1

    As a senior I advise to all students who are in 8th standard make notes in ur words and in exam just revise these notes and question answer I score 99 / 100 in science and I also solve pyq but in 8th class this is not important so at last I advise all of u to make notes in ur words do not copy someone's notes 😊❤ I wish u all score 100 out of 100 in all subjects 😊

  • @MoHaneef-d2l
    @MoHaneef-d2l 4 месяца назад

    ❤❤❤❤❤❤

  • @swapankumarbarik1729
    @swapankumarbarik1729 4 месяца назад +1

    Yes sir samaj aa raha hai

  • @RajeshSinha-vp2vh
    @RajeshSinha-vp2vh 25 дней назад

    Sir Agriculture practice 10

  • @SourabhKumar-ce9si
    @SourabhKumar-ce9si 22 часа назад

    Sir you are looking so handsome 😅..................

  • @ADITYASingh-n3u3y
    @ADITYASingh-n3u3y 29 дней назад

    YES SIR I AM LEGEND 😎😈😈😈😈😈😈

  • @sarikasakate-v2g
    @sarikasakate-v2g 23 дня назад

    placenta + umblical cord

  • @sanidhyachoudhary8594
    @sanidhyachoudhary8594 18 дней назад

    Sanidhya

  • @AnkitKumar-sz9fw
    @AnkitKumar-sz9fw 4 месяца назад

    😊 Sir aapne jo notes diye hai description me vo konse book se diya hai😊

  • @tecroutgamerz3791
    @tecroutgamerz3791 4 месяца назад +2

    Bhaiya, the fundamental unit of life wala chapter ka agla part please upload kr digiye. Bhout problem ho rha hai

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад +1

      Mene video upload kr dia hai dear. Aap RUclips par search kr ke dekh lijiye "all cell organelles by Armaan" apko video mil jayega

  • @sanidhyachoudhary8594
    @sanidhyachoudhary8594 18 дней назад

    Lactobacillus

  • @singhrishu8512
    @singhrishu8512 4 месяца назад

    Sir class 9th ka bhi aesha revision karwa digiye
    - matter
    - the fundamental units of life
    - is matter around us pure
    - motion
    - force and law of motion
    Please sir try to complete these chapter chapter
    And also under 1 week
    Please 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

  • @YashShukla-o3h
    @YashShukla-o3h 4 месяца назад +2

    Bhaiya please Pearson iit foundation physics ki series suru kriye

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад +1

      Dekhte hai....

    • @YashShukla-o3h
      @YashShukla-o3h 4 месяца назад +1

      @@Science_by_Armaan sir please sir.... Isse hmari jee ki foundation bhut strong ho jayegi 🥺

  • @YtSketchART
    @YtSketchART 2 месяца назад

    Where is physics

  • @kavitakhatri5309
    @kavitakhatri5309 2 месяца назад

    A

  • @palak.........5750
    @palak.........5750 4 месяца назад

    Sir thank you

  • @abhiraj0707
    @abhiraj0707 4 месяца назад +2

    Our exam will begin from 20

  • @aryanmalara9447
    @aryanmalara9447 Месяц назад

    Lacto bacillus

  • @celebrity2420
    @celebrity2420 Месяц назад

    To title me 8th lika he na to tu video click kyu ki

  • @luckyyadav_0001
    @luckyyadav_0001 4 месяца назад

    Bhaiya app bahut accha padhate hai

  • @wellplayed1939
    @wellplayed1939 4 месяца назад +2

    Sir apke white board ke content ko notes ki tarah use kar sake hai kya for class 9

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад

      Han Ji kar sakte ho

    • @wellplayed1939
      @wellplayed1939 4 месяца назад +1

      Thank you . Sir aap kuch point miss to nhi karte just to ask

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад

      Wahi points hote hai jo important hote hai... Sara chapter explain nahi ho sakta hai. Aapko khud se b padhna padega na dear. Lakin concepts lagbhag sare samjha deta hu.

  • @PoojaKumari-h7s5u
    @PoojaKumari-h7s5u 4 месяца назад +3

    Sir. Class 9 please

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад +1

      Class 9th ke liye b aayega... But uske liye thoda time chaiye hoga. Pehle main syllabus complete krenge then uska revision

    • @PoojaKumari-h7s5u
      @PoojaKumari-h7s5u 4 месяца назад

      Koi jaldi nahi hai sir mai pW me jane ke baad bhi aap se science padhta hoon because aap se acha science ke concept koi clear nahi kar sakta hai

  • @ItsThunder-kv2dp
    @ItsThunder-kv2dp 4 месяца назад

    Please sir make 9th class half year revision 🤗

  • @swapankumarbarik1729
    @swapankumarbarik1729 4 месяца назад

    Samaj aa raha hai and sir say me ok

  • @swapankumarbarik1729
    @swapankumarbarik1729 4 месяца назад

    Somdeep

  • @crx_rishabh
    @crx_rishabh 4 месяца назад +1

    Sir you missed some of the parts of every agricultural practice😢

  • @VirajChoudhary-0018
    @VirajChoudhary-0018 4 месяца назад

    Sir class 9th ki bhi ese video bnao

  • @ramjanamyadav7443
    @ramjanamyadav7443 27 дней назад

    La

  • @SanthoshYadav-w7y
    @SanthoshYadav-w7y 4 месяца назад

    Sir please class 9 science chapter tissue ka full chapter example karke video dal dena

  • @abhiraj0707
    @abhiraj0707 4 месяца назад +1

    Physics

  • @chandnijha6880
    @chandnijha6880 Месяц назад

    Sir virus

  • @Velocityeditz-s2s
    @Velocityeditz-s2s 4 месяца назад +1

    Bhaiya mere se physics class 9th ke numerical solve nhi ho rhe plz help me 😭❤🙏🏻

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад +1

      Ho jayenge aapse bhi solve don't worry... Numericals ke liye basic math bhi strong hona chaiye. Agar apka basic maths strong hai then apki concept par achchi knowledge honi chahiye. Currently channel par daily one Numericals wala video aa raha hai aap vo dekh sakte hai usse apko help mil jayegi..

    • @vanshraghuvanshi5184
      @vanshraghuvanshi5184 4 месяца назад +1

      @Mr.facto.devils bhai ye sab new hai hamare liye sabko problem hoti hai thodi practice kar sab solve hoga chill kar😊

    • @Velocityeditz-s2s
      @Velocityeditz-s2s 4 месяца назад

      @@Science_by_Armaan bahiya mai apko class 8 th se follow kar rha hoon 💝

  • @aryanmalara9447
    @aryanmalara9447 Месяц назад

    Sir if 300million=30crore then u have 300 million subscriber😮😮😮

  • @Vaishnavisanya
    @Vaishnavisanya 4 месяца назад

    Sir about class 9 🥲

  • @SaliqYaqub
    @SaliqYaqub 4 месяца назад +6

    Sorry sir but I am in 9th class now 🗿🗿

    • @Science_by_Armaan
      @Science_by_Armaan  4 месяца назад +6

      It's ok dear... Get ready for class 9 revision videos from 1st July 🔥

    • @SaliqYaqub
      @SaliqYaqub 4 месяца назад

      @@Science_by_Armaan thank you sir 🥲🥲🥲🥲🥲🥲🥲🥲🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭

    • @TurboQuest_10
      @TurboQuest_10 23 дня назад

      Abe tu ne sir ka channel name dekha hai kya

  • @ProgamingHarsh
    @ProgamingHarsh 4 месяца назад

    Sir harsh hoo

  • @chandinitirki8971
    @chandinitirki8971 3 месяца назад

    Lactobacillus

  • @Hardikkumar-dl5cx
    @Hardikkumar-dl5cx Месяц назад

    Lactobacillus