Transcript
  • ENGLISH-LANGUAGE

    Class8

    2020-2021

    Assignment–1

    SimplePresentTense

    Thesimplepresent(alsocalledpresentsimpleorpresentindefinite)isaverbtense

    whichisusedtoshowrepetition,habitorgeneralization.Lesscommonly,thesimple

    presentcanbeusedtotalkaboutscheduledactionsinthenearfutureand,insome

    cases,actionshappeningnow.

    SimplePresentForms

    Thesimplepresentisjustthebaseformoftheverb.Questionsaremadewithdoand

    negativeformsaremadewithdonot.

    Statement:YouspeakEnglish.

    Question:DoyouspeakEnglish?

    Negative:YoudonotspeakEnglish.

    Inthethirdpersonsingular,-sor-esisadded.Questionsaremadewithdoesand

    negativeformsaremadewithdoesnot.

    Statement:HespeaksEnglish.

    Question:DoeshespeakEnglish?

    Negative:HedoesnotspeakEnglish

    SimplePresentUses

    USE1RepeatedActions

    Usethesimplepresenttoexpresstheideathatanactionisrepeatedorusual.The

    actioncanbeahabit,ahobby,adailyevent,ascheduledeventorsomethingthat

    oftenhappens.Itcanalsobesomethingapersonoftenforgetsorusuallydoesnot

    do.

    Examples:

    Iplaytennis.

    Shedoesnotplaytennis.

    Doesheplaytennis?

    Thetrainleaveseverymorningat8AM.

    Thetraindoesnotleaveat9AM.

    Whendoesthetrainusuallyleave?

    Shealwaysforgetsherpurse.

    Heneverforgetshiswallet.

    Everytwelvemonths,theEarthcirclestheSun.

    DoestheSuncircletheEarth?

  • USE2FactsorGeneralizations

    Thesimplepresentcanalsoindicatethespeakerbelievesthatafactwastruebefore,

    istruenow,andwillbetrueinthefuture.Itisnotimportantifthespeakeriscorrect

    aboutthefact.Itisalsousedtomakegeneralizationsaboutpeopleorthings.

    Examples:

    Catslikemilk.

    Birdsdonotlikemilk.

    Dopigslikemilk?

    CaliforniaisinAmerica.

    CaliforniaisnotintheUnitedKingdom.

    Windowsaremadeofglass.

    Windowsarenotmadeofwood.

    NewYorkisasmallcity.Itisnotimportantthatthisfactisuntrue.

    USE3ScheduledEventsintheNearFuture

    Speakersoccasionallyusesimplepresenttotalkaboutscheduledeventsinthenear

    future.Thisismostcommonlydonewhentalkingaboutpublictransportation,butit

    canbeusedwithotherscheduledeventsaswell.

    Examples:

    Thetrainleavestonightat6PM.

    Thebusdoesnotarriveat11AM,itarrivesat11PM.

    Whendoweboardtheplane?

    Thepartystartsat8o'clock.

    Whendoesclassbegintomorrow?

    USE4Now(Non-ContinuousVerbs)Speakerssometimesusethesimplepresentto

    expresstheideathatanactionishappeningorisnothappeningnow.Thiscanonly

    bedonewithnon-continuousverbsandcertainmixedverbs.

    Examples:

    Iamherenow.

    Sheisnotherenow.

    Heneedshelprightnow.

    Hedoesnotneedhelpnow.

    Hehashispassportinhishand.

    Doyouhaveyourpassportwithyou?

    Exercises:

    Rewritethefollowingsentencesintheirnegativeforms:

    1. Harshhelpsinthekitchen.

    2. Itisraining.

    3. Nidhihasapetdog.

    4. SusieandShyamaareworkinginthegarden.

  • 5. Wearescaredofspiders.

    6. Iamtired.

    7. Raviandhisfriendsplayfootballeveryevening.

    8. Iaminameetingnow.

    9. Larryhasabluebicycle.

    10. Thestudentispunctual.

    Fillintheblankswithsimplepresenttenseformofverbs:

    1. I___________atabank.(work)

    2. She__________withherparents.(live)

    3. Cows__________ongrass.(feed)

    4. He_______ahandsomesalary.(earn)

    5. Janet________tobeasinger.(want)

    6. Emily__________deliciouscookies.(make)

    7. Artiandherhusband_______inSingapore.(live)

    8. RohanandSania____________toplaycardgames.(like)

    9. Sophia_________Englishverywell.(speak)

    10. Martin__________forawalkinthemorning.(go)

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  • ENGLISHLITERATURE

    Class-VIII

    2020-21

    Assignment-1

    TOPIC-INTHEBAZAARSOFHYDERABAD

    IntheBazaarofHyderabadisaamazingpoemwrittenbySarojiniNaidu.The

    poemwaswritten as a part of the SwadeshiMovement. The poem is in the

    formofquestionsandanswersthatmakesthepictureofthebazaarvisibleto

    us.

    Thepoembeginswithquestions tomerchantaboutwhat theyaresellingas

    they display red and silver colour turbans, brocade tunics, mirror and

    daggers.

    Thenshevisitsvendors,maidensandthepeddlers.Theyareweighingsaffron

    lentilsandrice.Themaidensaregrindingsandalwood,hennaandspicesand

    thesalesmenaresellingchessmenanddiceforchess.

    Answerthefollowingquestions:-

    Q.1.HowwillyoudescribeanIndianmarket?

    Q.2.Whatarethefewthings,thataresoldinanIndianmarket?

    Q.3Whicharticleofcommonuseissoldtomostofthepeople?

    Q.4.Whatisapoetry?

    Referencetocontext:-

    Whatdoyousell,OyeMerchants?

    Richlyyourwaresaredisplayed.

    Q.n.1-WhatisbeingaskedfromtheMerchants?

    Q.n.2-Whatisthepurposeofdisplayingtheirarticlesinthebazaar?

    Matchthefollowingwordswiththemeaningswrittenbelowthenusethemin

    yourownsentences:

    Crimson,wares,tunic,brocade,amber,dagger

    1) Aloosegarment

    2) Sword

    3) Red

    4) Articlesofferedforsale

    5) Orangecolouredresin

    6) Arichfabricwovenwithgoldorsilverthread.

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  • MATHS

    Class8

    Session–2020-21

    Assignment–1TOPIC:RATIONALNUMBERS

    Firstly,webeginwithrevisionofsometermslike-

    Naturalnumbers:Thecountingnumbers1,2,3……arecallednaturalnumbers.

    Whole numbers: The natural numbers together with zero form a set of whole

    numbersi.e.0,1,2,3….

    Integers:Naturalnumbersalongwithzeroand theirnegativesarecalled integers

    i.e.………-3,-2,

    -1,0,1,2,3……

    NOTE:Zeroistheonlyintegerthathasnosign.

    Therefore, a number which canbe expressed in the formp/q, where p and q are

    integersandq≠0iscalledarationalnumber.Forexample:2/7, -3/8,2, -7, -1/3

    areallrationalnumbers.

    NOTE:Everyintegerisarationalnumberbuteveryrationalnumberisnotaninteger.

    Everynaturalnumberisarationalnumberbutnotvice-versa.

    Thesetofrationalnumbersisinfinite.

    A rational number should always be expressed in standard form i.e. the

    denominatorwillalways

    havepositivesignandtherationalnumberbeinsimplifiedform.

    If the numerator and denominator of a rational number have the same sign, it is

    calledapositiverationalnumber.E.g.1/3,-3/-4,areallpositiverationalnumber.

    Ifthenumeratoranddenominatorofarationalnumberhavetheoppositesign,itis

    calledanegativerationalnumber.E.g.-4/7,3/-8,areallnegativerationalnumbers.

    Rationalnumbershavingthesamevaluearecalledequivalentrationalnumbers.E.g.

    Additionofrationalnumbers:

    Ifthedenominatorsofrationalnumbersareequal,thentheadditionwillbeinthis

    way-

    Forexample:

  • If thedenominatorsof rationalnumbersaredifferent, then theadditionwillbe in

    thisway-

    Forexample:

    Exercise1.1Q1. Findthesum:

    (i) 5/8+(-7/8)(ii) 19/30+(-9/30)

    Q2. Add:

    (i) 7/16and-3/4 (ii) -17/20and-3/7

    Q3. Simplify:

    (i) 7/10+(-4/5)+(-9/10) (ii) (-7/6)+3/8+¼

    Propertiesofrationalnumbers:

    Additiveidentity:Thesumofzeroandanyrationalnumberistherationalnumber

    itself.

    NOTE:Zeroiscalledtheadditiveidentity.

    Ifa/bbeanyrationalnumber,then

    a/b+0=0+a/b=a/b

    Additive inverse: The additive inverse of any rational number is the rational

    numberitselfwithoppositesign.Whenitisaddedtothegivenrationalnumber, it

    giveszeroasthesum.

    Ifa/bbeanyrationalnumber,then

    a/b+(-a/b)=0where(-a/b)isadditiveinverseofgivenrationalnumber.

    Exercise1.2

    Q1. Add:

    (i) -8/11+0 (ii)5/3+(-5/3)

    Q2. Writetheadditiveinverseofthefollowingrationalnumbers:

    (i) -3/11 (ii) 3/-19

    Q3.

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  • PHYSICS

    Class8

    Session–2020-21

    Assignment–1

    TOPIC:MATTERThisisawellknowntopicwhichdoesnotrequireanyintroduction.Butstilljustfor

    revisionwewillgothroughsomebasicpoints:

    Matterisanysubstancewhichhasmassandoccupiesspace. Matteriscomposedofverysmallparticleswhichmaybemolecules,atomsor

    ions.

    Matterexistsinthreephysicalstates-solidstate,liquidstate&gaseousstate.

    .

    Kineticmoleculartheoryexplainsthecharacteristicsofthethreestatesof

    matter&theirinterconversion.

    Differenceincharacteristicsofthreestatesofmatter:

    Parameters Solids Liquids Gases

    Packingof

    molecules

    Closelypacked Looselypacked Veryloosely

    packed

    Intermolecular

    space

    Verylow Morethansolids

    lessthangases

    Maximum

    Intermolecular

    forceof

    attraction

    Verystrong Lessthansolids

    morethangases

    Negligible

    Molecular

    movement

    Possessonly

    vibratorymotion,

    butthemean

    positionisfixed

    Possesstranslatory

    &rotatorymotion

    inadditionto

    vibratorymotion

    Possess

    translatory,

    rotatory&

    vibratorymotionin

    alldirections

    Kineticenergy Verylowkinetic

    energy

    Kineticenergy

    morethansolids

    Kineticenergyis

    highest

    Solidshavedefinitemass,shape&volume.

    Liquidshavedefinitemass&volumebutnodefiniteshape;theytakethe

    shapeofthevesselinwhichtheyarekept.

    Gaseshavedefinitemass,butnodefiniteshapeorvolume.

  • Intermolecularforceofattractionisinverselyproportionaltointermolecular

    spacei.e.morespacebetweentheparticlesofmatter,lessintermolecular

    forceofattractionbetweentheparticles.

    Allparticleshaveadefinitespatialarrangement.

    Allparticlesareinconstantrandommotionduetowhichtheparticlesof

    matterpossesskineticenergy.

    Answerthefollowing:

    Q1. Namethestateofmatterthathas:

    (i) thegreatestintermolecularspace.

    (ii) theleastinintermolecularforceofattraction.

    (iii) hasfixedvolume&shape.

    (iv) nofixedvolume&nofixedshape.

    (v) themaximumfreedomofmovementofitsparticles

    Q2. Fillintheblanks:

    (i) Theparticlesofasubstanceare________packedinasolidstate. (ii) Asubstancewhichhas________intermolecularforceofattractionwill

    haveahighmeltingpoint.

    (iii) Theparticlesofmatterarein_______motionastheyhave_______energy.(iv) Liquidsare_______compressible.(v) Gaseshave_______densities.

    Q3. Givereasons:

    (i) Solidsdonotdiffuseintooneanother.

    (ii) Liquidsaswellasgasesarecalledfluids.

    Q4. Whatarethethreecharacteristicsofmatter.

    Q5. Findtheoddoneout&givereasonforyouranswer:

    (i) Compressibility,nodefiniteshape,diffusibility,leastkineticenergy.

    (ii) Nitrogen,oxygen,hydrogen,water.

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  • CHEMISTRY

    Class–8

    2020–2021

    Assignment–1

    Chapter–MatterMatter–matterisdefinedasanythingthathasmassandoccupiesspace.

    Matteroccursinthreestatesi.e.solid,liquidandgas.Allstatesofmatteraremade

    ofnumerous

    particles(atomsormolecules).Thespacebetweentheseparticlesiscalled

    intermolecularspaceandtheforceofattractionbetweentheparticlesiscalled

    intermolecularforceofattraction.

    Characteristicsofsolids

    1.Insolidstheparticlesaretightlypacked.Sotheyhaveafixedshapeandvolume.

    2.Densityofsolidsisveryhigh.

    3.Solidsarerigidandcannotflow.

    4.Solidscannotbecompressed.

    5.Intermolecularforceofattractioninsolidsisveryhighastheparticlesaretightly

    packed.

    Characteristicsofaliquid

    1.Inliquidstheparticlesarelesstightlypackedascomparedtosolidsandsotheir

    intermolecularforceofattractionislessthansolids.

    2.Densityofliquidsislessthansolids.

    3.Liquidscanbecompressedtoalittleextent.

    4.Liquidshavenodefiniteshapebuthaveadefinitevolume.

    5.Liquidsarelessrigidandcanflow.

    6.Liquidshaveonefreesurface.

    Characteristicsofgases

    1.Gaseshavenegligibleintermolecularforceofattractionandsotheirmoleculesare

    farapartfromeachother.

    2.Gasescanbecompressedtoagreatextent.

    3.Gasescanflowveryeasilybecauseofnegligibleforceofattraction.

    4.Gasesdonothaveadefiniteshapenorvolume.

    5.Gaseshavetheleastdensity.

    6.Gaseshavenofreesurface.

    Interconversionofmatter

    Theconversionofoneformofmatterintoanotherandbacktoitsoriginalstateis

    calledinterconversionofmatter.

  • Termsrelatedtotheinterconversionofmatter

    1.Melting/Fusion-thechangeofstatefromsolidtoaliquidataparticular

    temperatureiscalledmelting.Thetemperatureatwhichmeltingtakesplaceis

    calledmeltingpoint.

    2.Freezing/solidification-thechangeofstatefromliquidtoasolidataparticular

    temperatureisfreezing.Thetemperatureatwhichfreezingtakesplaceiscalled

    freezingpoint.

    3.Boiling-thechangeofstatefromliquidtoagasataparticulartemperatureis

    calledboiling.Thetemperatureatwhichliquidboilsiscalledit’sboilingpoint.

    4.Evaporation-thechangeofstatefromliquidtogashappeningatalltemperatures.

    5.Condensation/liquifactionThechangeofstatefromgastoliquidoncoolingata

    particulartemperatureiscalledcondensation.Thetemperatureatwhich

    condensationoccursiscalledtheliquifactiontemperature.

    6.Sublimation-thechangeofstatefromsoliddirectlyintoagasonheatingand

    backintoasolidoncoolingiscalledsublimation.

    *******************************************************************************

    Answerthefollowingquestions-:

    1.Definematter.Namethethreestatesofmatter.

    2.Whatisinterconversionofmatter.

    3.Comparethethreestatesofmatteronthebasicofthefollowingpoints-

    i)Density

    ii)intermolecularspace

    iii)Compressibility

    iv)Fluidity

    v)Shapeandvolume

    4.Definethefollowingterms-

    i)Sublimation

    ii)Melting

    iii)Liquifaction

    iv)Evaporation

    *********************************************************************************

  • BIOLOGY

    Class-8

    2020-21

    Assignment–1TOPIC-REPRODUCTIONINPLANTS(ASEXUALREPRODUCTION)

    Beforestartingwhatisasexualreproductionwewillfirstunderstandwhat

    reproductionisandwhatistheimportanceofreproduction.

    “Reproductionistheprocessofgivingrisetonewindividualorganismfromtheir

    parents”

    Meaningwhenaparentgivesbirthtoanewindividualisknownasreproduction.

    Therearetwotypesofreproductionsexualandasexualreproduction.

    IMPORTANCE:

    Theimportanceofreproductionistoprotectthespeciesfromextinction.

    Nowwewillcometowhatisasexualreproduction.

    “Asexualreproductionistypeofreproductioninwhichonlyoneparentisrequireto

    givebirthorriseaindividualorganism”

    Inasexualreproductiontwogametes(cells)arenotrequired.Asexualreproduction

    isasimplestmethodthattakesplaceinorganismwhosebodieshavesimple

    structure.

    Asexualreproductionisoffollowingtype:

    a) BinaryFission

    b) Budding

    c) SporeFormation

    d) Fragmentation

    e) Regeneration

    f) VegetativePropagation

    Firstwewilldiscussfirsttwotypeofasexualreproduction

    1) BinaryFission:binarymeanstwoandfissionmeansdivision,

    Whenaparentcellgetsdividedintotwodaughtercellsisknownasbinary

    fission.

  • BINARYFISSIONINBACTERIA

    Inbinaryfissionthebacteriumdividesintotwodaughtercellandeachdaughtercell

    arecapableofgrowingintoaindividualcell.Atfirstthenuclearmaterialwillstart

    dividingafterthatcellmembranewillstartdividingduetocontractiondevelopment

    andattheendthesinglecellbacteriumwillbedividedintotwodaughtercells.

    2) Budding:Buddingisatypeofasexualreproductioninwhichaneworganism

    developsfromanoutgrowthorbudduetocelldivisionatoneparticularsite.

    Inbuddinganoutgrowththatiscalledbudappearsonthebodyoftheorganismor

    parentbodyhavingallthecytoplasmicmaterialinit,eventuallyaftersometimethat

    budwilldetachesfromtheparentbodyandwillbecapabletogrowinanindividual.

    QUESTIONS:

    1) Whatisthemethodofreproductioninyeast?

    2) Whatisthemethodofreproductioninbacteria?

    3) Drawwelllabelleddiagramofbinaryfissioninbacteria?

    4) Drawwelllabelleddiagramofbuddinginyeast?

  • 5) Whatdoyouunderstandbyasexualreproduction?

    6) Whatdoyouunderstandbyreproduction?Writethetypesofreproductions.

    7) In______anoutgrowthdevelopsupontheparentplantandthenbreaksaway

    fromit.(Fragmentation/budding)

    8) _______reproducebybinaryfission.(bacteria/virus)

    9) In_______typeofreproductiononlysingleparentisrequired.(asexual/

    sexual)

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  • HISTORY

    Class-VIII

    2020-2021

    Assignment–1

    TOPIC-APERIODOFTRANSITIONHistorianshavedividedhistoryintothreeperiods-ancient,medievalandmodern.It

    mustberememberedthatthechangefrommedievaltomodernwasagradual

    processandtookplaceoveraperiodoftime.

    The18thcenturyisgenerallytakenasthestartingpointofthemodernperiodin

    India.ThiswasthetimewhentheBritishbecamethemastersofIndia.Ontheother

    hand,themodernperiodinEuropebeganfromthe16thcentury.

    Sources

    ThereisanabundanceofsourcematerialsforthemodernperiodinIndia.Thesecan

    bedividedintotwogroups-primarysourceandsecondarysource.

    Primarysourceincludeoriginaldocumentssuchasletters,governmentreports,

    autobiographies,newspapers,audioandvideorecordingsandarchaeological

    remainssuchasmonumentsandartefacts.Manyofthesearepreservedinarchives

    andmuseums.

    SecondarysourcesHistoriansstudyprimarysourcesandinterpretthem.These

    interpretationsaresecondarysources.Example-reports,reviews,articlesand

    booksbyhistorians.

    MODERNEUROPE

    Themodernperiodischaracterizedbygreaterinteractionamongthecountriesof

    theworld.Therefore,itisimportanttoknowaboutthesignificanteventsand

    changesthattookplaceinotherpartsoftheworldduringthistime.

    Renaissance

    ThewordRenaissanceliterallymeans‘rebirth’.Itwasaculturalmovementthat

    spannedroughlythe14thcenturyand17thcentury.ThemovementbeganinItaly

    andspreadtotherestofEurope.Itaimedtoreviveclassicalglory,learningand

    cultureofancientGreeceandRome.Art,architecture,literature,philosophyand

    scienceofthisperiodwereinfluencedbytherenaissance.TheRenaissancethinkers

    wererationalist.Theyaskedpeoplenottoblindlyacceptwhateverthechurchtold

    them.Peoplewereaskedtojudgeandacceptthingsinthelightofreason.Humans

    becamethecentreofstudyduringtheRenaissance.Secularthemesanddepictionof

    thehumanformbecamethefocusofpaintingandsculptures.Michaelangelo

    Buonarroti,WilliamShaekespear,LeonardodaVinci,NicolausCopernicus,Galileo

    GalileiandIsaacNewtonaresomeimportantnamesofthatperiod.

    Reformation

    TheReformationwasanimportantmovementinthehistoryofEurope.Thenew

    spiritofenquiryopposedthepracticesoftheRomanCatholicChurch.Somepeople

  • spokeoutagainstthechurchfortheybelievedthatithadbecometoorich,powerful

    andcorrupt.ThesepeoplewerecalledtheProtestants.

    ProtestsagainstthecorruptpracticesofthechurchofficialswasledbyMartin

    Luther,amonkinGermany.InSwitzerland,UlrichZwingliandJohnCalvin

    popularizedtheprotestantmovement.InEngland,themovementwasledbyHenry

    VIII.InresponsetotheProtestantreformation,amovementbeganwithinthe

    RomanCatholicChurchtorestorethereputationandcredibilityofthechurch.This

    isknownastheCatholicReformation.

    EXERCISESTrueorFalse:

    1.ThemodernperiodinIndiabeganinthe18thcentury.

    2.Photographsaresecondarysources.

    3.TheRenaissancethinkerswerecalledrationalists.

    4.ChristopherColumbusledthereformationmovement.

    5.Archaeologicalremainsaresecondarysources.

    6.JohnCalvinwasafamousrenaissancepainterandsculptor.

    7.Reformationledtothegrowthofnewtownsandcities.

    8.InEnglandtheReformationmovementwasledbyHenryVIII.

    9.UlrichZwingliwasamonkinGermany.

    10.ModernperiodinEuropebeganfromthe16thcentury.

    Answerthefollowing:

    1.WhichmovementmarkedthebeginningofthemodernperiodinEurope?

    2.WhatwerethepeoplewhospokeagainstthecorruptpracticesoftheChurch

    called?

    3.WhendidthemodernperiodbegininEurope?

    4.Writetwoexamplesofsecondarysources.

    5.WhatdoesRenaissancemean?Inwhichcountrydidthemovementbegin?

    6.WhoweretheProtestants?Withwhichmovementaretheyassociated?

    7.Withreferencetothemodernperiod,discussthefollowing:

    a.Primarysourcesb.Secondarysources

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  • GEOGRAPHY

    Class-8

    2020-21

    Assignment-1

    Ls.RepresentationofGeographicalFeaturesTopographicalmaps

    Thelarge-scalemaps,preparedbytheSurveyofIndia,basedontheactualfield

    surveyarecalledthetopographicalmapsortoposheets.Thesemapsshowthe

    detailsaboutlandforms,drainagepatterns,landuse,settlementpatterns,transport,

    forestsandculturalfeaturesofaverysmallarea.

    Accordingtothescale,thetoposheetsarecategorizedintothreemaingroups.

    *Millionsheets*Quartersheets

    *Quadrantsheets

    MillionsheetsIndiaandtheadjoiningcountriesare

    dividedinto4°*4°sheetsThesesheetsarecalledthemillionsheetsTheextentof

    eachmillionsheetis4°oflatitudesand4°oflongitudes.Atotalof36millionsheets

    aredrawntocoverourwholecountry.Thescaleofthesesheetsis1:1,000,000or

    1cm:10km

    QuartersheetsAmillionsheetisdividedinto16

    equalparts.Eachpartofamillionsheetiscalledthequartersheet.Theextentof

    eachquartersheetis1°oflatitudeand1°oflongitude.Thescaleofthesesheetsis

    1:250,000or1cm:2.5km.

    Quadrantsheets Aquartersheetisfurthersub-divided

    into16equalparts.Eachpartofaquartersheetiscalledthequadrantsheet.The

    extentofeachquadrantsheetis1/4°oflatitudeor1/4°oflongitude.Thescaleof

    thesesheetsis1:50,000or2cm:1km.

  • Gridsystem. Mostofthemapshavea

    networkoflatitudesandlongitudes.Thisnetworkiscalledagrid.Thegridisuseful

    tolocateplacesonthemap.

    Anarbitrarygridsystem

    Onatoposheet,itisdifficulttocalculatetheexactlatitudeandlongitudeofaplace.

    Tosolvethisproblem,asetofverticalandhorizontallinesaredrawninred.These

    linesalsoformagridandanetworkofsquares.Thisiscalledthearbitrarygrid

    system.

    Features.

    *Thesouth-westcornerorthebottom-leftcornerofatoposheetisalwaystakenas

    thestartingpoint.

    *Theverticalgridlines,drawnfromnorthtosouth,arecalledtheeastings.Theyare

    socalledbecausetheylietowardstheeastofthesouth-westcorner.

    *Thehorizontalgridlines,drawnfromeasttowestarecalledthenorthings.They

    aresocalledbecausetheylietowardsthenorthofthesouth-westcorner.

    *Theeastingsandthenorthingsintersecttoformanetworkofsquarescalledthe

    arbitrarygridsystem.Eachsquareinthearbitrarygridsystemiscalledthegrid

    square.

    *Theeastingsandthenorthingsarealwaysdrawntwocentimetresapart.Thus,one

    gridsquarerepresentsanareaofonesquarekilometreontheground.

    *Thegridlinesarenumberedintwodigitssuchas00,01,02,....99.Thenumberingis

    usefultolocateplacesandfeatures.

    *Thevalueoftheeastingsandnorthingsincreaseeastwardsandnorthwardsfrom

    thesouth-westcornerrespectively.

    *Whilegivingthegridreferenceofaplace,theeastingsarealwaysquotedfirstand

    thenthenorthings.

  • Filluptheblanks:-

    1.___millionsheetsaredrawntocoverthewholeofIndia.

    2.Amillionsheetisdividedinto__equalparts,calledthe__sheet.

    3.Indiaandtheadjoiningcountriesaredividedinto__sheets.

    4.Eachpartofaquartersheetiscalledthe__sheet.

    5.Theverticalgridlinesarecalled__andthehorizontalgridlinesarecalled__.

    Correctthestatements:-

    1.Toposheetsshowthedetailsofaverylargearea

    2.Asetofverticalandhorizontallinesaredrawninbluetoformthearbitrarygrid

    system.

    3.Thebottom-rightcornerofatoposheetisalwaystakenasthestartingpoint.

    4.Thegridlinesdrawnfromnorthtosoutharecallednorthings.

    5.Thevalueoftheeastingsandnorthingsdecreaseeastwardsandnorthwardsfrom

    thesouth-westcornerrespectively.

    Answerthequestions:-

    1.Whataretoposheets?Whatdotheyshow?

    2.Accordingtoscalethetoposheetscanbedividedintohowmanymaingroups?

    Namethemandalsowritethescaleofeach.

    3.Whatisgrid?Howisituseful?

    4.Itisdifficulttocalculatetheexactlatitudeandlongitudeofaplaceonatopo

    sheet.Whatisdonetosolvethisproblem?Whatisitcalled?

    5.Whatisgridsquare?Howaregridlinesnumberedandhowisthenumbering

    useful?

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  • COMPUTERAPPLICATION

    Class-8

    2020-2021

    Assignment-1

    Chapter-1OperatingSystem(OS)andGUIIntroduction-

    Acomputerworksonlyontheinstructionswhicharegivenbytheuser.Allthose

    instructions,whicharespecificallywrittenforperformingdefinitetaskarecalled

    SoftwareorProgram.Someofthesoftwaremakesthehardwaretoworkonthe

    instructionsprovided.Byusingdifferenttypesofsoftware,thesamesetof

    hardwareofcomputerperformsdifferentfunctions.Forexampleacomputercan

    write(usingkeyboard),print(usingprinter),save(usinganystoragemedium)or

    candoanyothertaskatthesametimeaspertheinstructionsgivenbythe

    software/program.

    Softwarecanbebasicallyclassifiedintotwomajorcategories:-

    i) SystemSoftware ii).ApplicationSoftware

    SystemSoftware-SystemSoftwareisthesoftwarewhichisrequiredforthe

    internalfunctioningofthecomputer.Allthedevices(likekeyboard,mouseetc)

    whichareattachedwithcomputerarecheckedandmanagedbythissoftware.One

    ofthemajorsystemsoftwareisOperatingSystem.

    ApplicationSoftware–ApplicationSoftwareisthesoftware,whichisdesignedand

    developedforperformingday-to-dayactivitiesdonebyacomputerliketyping,

    presentationetc.someoftheexamplesareMSWord,PowerPointetc.

    I. AnswerthefollowingQuestions:-

    Q1-WhatisSoftware?

    Q2-Namethetwocategoriesinwhichsoftwarearebasicallyclassified?

    Q3-ExplainSystemSoftwareandApplicationSoftware.

    Q4-NameoneofthemajorSystemSoftware.

    Q5-GivetwoexamplesofApplicationSoftware.

    II. Fillintheblanks:-

    i. Acomputerworksonlyonthe__________whicharegivenbytheuser.

    ii. Allthoseinstructionswhicharespecificallywrittenforperformingadefinite

    taskarecalled________.

    iii. Softwarecanbebasicallyclassifiedinto_____majorcategories.

    iv. ___________softwareisrequiredforinternalfunctioningofthecomputer.

    v. __________softwareisdesignedanddevelopedforperformingday-to-day

    activitiesdonebyacomputer.

  • GENERALKNOWLEDGE

    Class8

    2020-2021

    Assignment1 Identifythesefamousfreedomfightersandnamethem:

    1. HeisaTibetiansymbolofnotonlytheirreligionbuttheirstruggleagainst

    Chineseoccupation_____________

    2. HeisanIndiannationalistleaderwhostruggledtoalienatepoverty,to

    liberatewomenandtoputanendtocastdiscrimination__________.

    3. HefoughtagainstapartheidinSouthAfricaandwaspresidentofthecountry

    for5yearsin1990’s_________.

    4. HewasaChiiricahuaApachechieffamousforhisstringofrevoltsagainst

    Spanishoccupationheenduredformostofhislife___________.

    Currentaffairs:

    Basicprotectivemeasuresagainstthenewcoronavirus StayawareofthelatestinformationontheCOVID-19outbreak,availableon

    theWHOwebsiteandthroughyournationalandlocalpublichealthauthority.

    Mostpeoplewhobecomeinfectedexperiencemildillnessandrecover,butit

    canbemoresevereforothers.Takecareofyourhealthandprotectothersby

    doingthefollowing:

    Washyourhandsfrequently Regularlyandthoroughlycleanyourhandswithanalcohol-basedhandrub

    orwashthemwithsoapandwater.

    Why?Washingyourhandswithsoapandwaterorusingalcohol-basedhandrubkillsvirusesthatmaybeonyourhands.

    Maintainsocialdistancing Maintainatleast1metre(3feet)distancebetweenyourselfandanyonewho

    iscoughingorsneezing.

    Why?Whensomeonecoughsorsneezestheyspraysmallliquiddropletsfromtheirnoseormouthwhichmaycontainvirus.Ifyouaretooclose,you

    canbreatheinthedroplets,includingtheCOVID-19virusiftheperson

    coughinghasthedisease.

    Avoidtouchingeyes,noseandmouth Why?Handstouchmanysurfacesandcanpickupviruses.Once

    contaminated,handscantransferthevirustoyoureyes,noseormouth.From

    there,theviruscanenteryourbodyandcanmakeyousick.

    Practicerespiratoryhygiene Makesureyou,andthepeoplearoundyou,followgoodrespiratoryhygiene.

    Thismeanscoveringyourmouthandnosewithyourbentelbowortissue

    whenyoucoughorsneeze.Thendisposeoftheusedtissueimmediately.

  • Why?Dropletsspreadvirus.Byfollowinggoodrespiratoryhygieneyouprotectthepeoplearoundyoufromvirusessuchascold,fluandCOVID-19.

    Ifyouhavefever,coughanddifficultybreathing,seekmedicalcareearly

    Stayhomeifyoufeelunwell.Ifyouhaveafever,coughanddifficultybreathing,seekmedicalattentionandcallinadvance.Followthedirectionsof

    yourlocalhealthauthority.

    Why?Nationalandlocalauthoritieswillhavethemostuptodateinformationonthesituationinyourarea.Callinginadvancewillallowyour

    healthcareprovidertoquicklydirectyoutotherighthealthfacility.Thiswill

    alsoprotectyouandhelppreventspreadofvirusesandotherinfections.

    Stayinformedandfollowadvicegivenbyyourhealthcareprovider StayinformedonthelatestdevelopmentsaboutCOVID-19.Followadvice

    givenbyyourhealthcareprovider,yournationalandlocalpublichealth

    authorityoryouremployeronhowtoprotectyourselfandothersfrom

    COVID-19.

    Why?NationalandlocalauthoritieswillhavethemostuptodateinformationonwhetherCOVID-19isspreadinginyourarea.Theyarebest

    placedtoadviseonwhatpeopleinyourareashouldbedoingtoprotect

    themselves.

    1. Coronavirusoriginatedfromwhichcountry?

    2. Whodeclared‘JantaCurfew’inIndiaandwhen?

    3. Writefourmeasureswecantaketopreventcoronavirus.

    4. Whatismeantbythetermsocialdistancing?

    5. Whatdoyouunderstandby‘CompleteLockdown’?

    ****************************

  • MORALSCIENCE

    Class8

    2020-2021

    Assignment1

    Chapter1:GodiswithusReadthestorycarefullyandanswerthefollowingquestions:

    OnedaySnehaaskedhergrandma,“howisitthatyouarealwayssohappy?You

    havesomuchenergyandyouneverseemtobeinlowspirits.”

    Withhereyessmiling,grandmasaid,“Iknowthesecret!”

    “Whatsecretisthat?”askedSneha.

    Towhichgrandmareplied,“I’lltellyouallaboutitbutyouhavetopromisethatyou

    wouldsharethesecretwithothers.”

    Grandmathendisclosedthesecret:

    IhavelearntthereislittleIcandoinmylifethatwillmakemetrulyhappy.I

    mustdependonGodtomakemehappyandmeetmyneeds.

    Whenaneedarisesinmylife,,IhavetotrustGodtosupplyaccordingtohis

    riches.IhavelearntmostofthetimeIdon’tneedhalfofwhatIthinkIdo.

    Godhasneverletmedown.

    SinceIlearntthat‘secret’,Iamhappyandfeelsecureandpositiveaboutlife.

    Snehaatfirstthought,“that’stoosimple!”Butafterreflec1tingoverherownlifeshe

    recalledhowshethoughtabiggerroomwouldmakeherhappybutitdidn’t!She

    thoughtahikeinherpocketmoneywouldmakeherhappy,,butitdidn’t.

    Sohowdidshefindhappinessinherlife?Spendingtimewithherfriends,,listening

    tograndma’stalesbuyinggiftsforherparentsandthroughothersuchsmall

    gestures.

    Nowweknowthatsecrettoo!

    Wecannotdependonpeopletomakeushappy.OnlyGodinhisinfinitewisdomcan

    dothat,letuslearntotrusthim!

    1. HowdoesGodtalktouswhenwefeeltheurgetodosomethingforsomeone?

    2. Howdowefeelwhenweareunwellandbedriddenandwereceiveacallfrom

    someone?

    3. WritetwomomentswhenyoufeelthatGoddoesnotcareforyou.

    4. Whatwasthesecretofgrandma’shappiness?

    5. Whatisthemoralofthestory?

    6. WriteashortprayertoaskforGod’shelpintimesoftrouble.

    ****************************

  • HINDILANGUAGE

    Class:VIII

    2020-2021

    Assignment–#1

    Hkk"kk

    funsZ'k & uhps fy[ks dk;Z dks /;ku iwoZd ifkrs gSa vkSj Nk= lqudj mudh ckr le>rs gSaA cPpk ekrk&firk ls cksydj vius eu ds Hkko çdV djrk gS vkSj os mldh ckr lqudj le>rs gSaA blh çdkj] Nk= Hkh v/;kid }kjk le>kbZ xbZ ckr dks fy[kdj çdV djrs gSa vkSj v/;kid mls irk gS] ekSf[kd Hkk"kk dgykrh gSA

  • nwljs 'kCnksa esa& ftl /ofu dk mPpkj.k djds ;k cksydj ge viuh ckr nqljks dks le>krs gS] mls ekSf[kd Hkk"kk dgrs gSA mnkgj.k& VsyhQksu] nwjn'kZu] Hkk"k.k] okrkZyki] ukVd] jsfM;ks vkfnA

    2- fyf[kr Hkk"kk%& eqds'k Nk=kokl esa jgrk gSA mlus i= fy[kdj vius ekrk&firk dks

    viuh dq'kyrk o vko';drkvksa dh tkudkjh nhA ekrk&firk us i= ikbZ vkSj le>h tkrh gS] rc og lkadsfrd Hkk"kk dgykrh gSA mnkgj.k& pkSjkgs ij [kM+k ;krk;kr fu;af=r djrk flikgh] ewd&cf/kj O;fä;ksa dk okrkZyki vkfnA

    IV- Hkk"kk dk vk/kkj vkSj Lo#i

    ,d lgh ,oa lqO;ofLFkr Hkk"kk o.kksaZ ds lqO;ofLFkr esy ls cus 'kCn] 'kCnksa ds lgh esy ls cus okD; vkSj okD;ksa ds lgh esy ls curh gSA vr% lgh LFkku ij lVhd o.kksaZ] 'kCnksa ,oa okD;ksa dk ç;ksx dj viuh Hkko dks O;ä fd;k tk ldrk gSA Hkk"kk dk Lo#i rhu çdkj ls fu/kkZfjr fd;k x;k gS &

    o.kZ

    'kCn

    okD; ****************************

  • HINDILITERATURE

    Class8

    2020–21

    Assignment–1ek¡] dg ,d dgkuh ¼ Jh eSfFkyh 'kj.k xqIr ½

    uhps fy[kh dfork dks if fy;k D;k rwus eq>dks viuh ukuh\^^ ^^dgrh gS eq>ls ;g psVh] rw esjh ukuh dh csVh dg ek¡ dg ysVh gh ysVh] jktk Fkk ;k jkuh\ ek¡ dg ,d dgkuhA^^ ^^rw gS gBh] eku/ku esjs] lqu miou esa cM+s losjs] rkr Hkze.k djrs Fks rsjs] tgk¡ lqjfHk euekuhA^^ ^^tgk¡ lqjfHk euekuh! gk¡ ek¡ ;gh dgkuhA^^ ^^o.kZ o.kZ ds Qwy f[kys Fks] >yey dj fgefcanq f>ys Fks] gyds >ksads fgys feys Fks] ygjkrk Fkk ikuhA^^ ^^ygjkrk Fkk ikuh] gk¡ gk¡ ;gh dgkuhA^^ ^^xkrs Fks [kx dy dy Loj ls] lglk ,d g¡l Åij ls] fxjk fc) gksdj [kj 'kj ls] gqbZ i{kh dh gkuhA^^ ^^gqbZ i{kh dh gkuh\ d#.kk Hkjh dgkuh!^^ ^^pkSad mUgksaus mls mBk;k] u;k tUe lk mlus ik;k] brus esa vk[ksVd vk;k] y{k flf) dk ekuhA^^ ^^y{k flf) dk ekuh! dksey dfBu dgkuhA^^ ^^ek¡xk mlus vkgr i{kh] rsjs rkr fdUrq Fks j{kh] rc mlus tks Fkk [kxHk{kh] gB djus dh BkuhA^^ ^^gB djus dh Bkuh! vc c

  • Åij fy[kh dfork ds vk/kkj ij iwNs x, ç'uksa ds mÙkj viuh mÙkj iqfLrdk esa fyf[k,& ¼d½% çLrqr dfork esa fdl /kekZRek iq#"k ds thou dh ppkZ gks jgh gS \ ¼[k½% dfork esa ek¡ fdls gBh dg jgh gS \ ¼x½% ?kk;y gal dks fdlus cpk;k \ ¼?k½% 'kkar miou esa lglk D;k ?kfVr gqvk \ ¼M½% dfork ds vk/kkj ij miou dh lqanjrk dk o.kZu dhft;s \ ¼p½% i'kq if{k;ksa dk f'kdkj djuk naMuh; vijk/k gS A vkids fopkj esa i'kq if{k;ksa ds f'kdkj djus dh vknr dks jksdus ds fy, D;k mik; djuk pkfg, \

    'kCnkFkZ & 'kCn vFkZ 'kCn vFkZ psVh nklh i{k ia[k fc) ?kk;y mHk; nksuksa fookn >xM+k O;kid foLrr̀ gBh ftíh miou ckxhpk

    i;kZ;okph 'kCn fyf[k, vkSj ;kn dhft;s& ?kk;y vkgr] pksfVy firk rkr] tud rhj 'kj] ok.k dFkk dgkuh] xkFkk

    ****************************

  • SANSKRIT

    Class–8

    2020–21

    Assignment–1

    ͪĤय छाğ एवं छाğाओ ंनवीन शै¢ͨणक सğ कȧ आप सभी को मंगल कामनाये।

    पाठ – 1वÛदना

    आप सभी इन दोनɉ æलोकɉ को Úयान पूव[क पढ़े तथा नीचे ͧलखे अथ[ को

    समझकर याद करɅ। हमारȣ परàपरा है ͩक जब हम ͩकसी भी काय[ का शुभारंभ

    करते हɇ, तो सव[Ĥथम ईæवर कȧ वÛदना करते है ताͩक मेरा Ĥ×येक काय[ सफल

    हो।

    (1) मूकं करोǓत वाचाल ंपÊडलंडॄÛयत ेͬगǐरम ्।

    य×कृपा तमहं वÛदे परमानÛदमाधवम।्।

    अथा[त ्िजसकȧ कृपा से गंूगा बोलने लगता है तथा लंगड़ा पव[त yk¡?k जाता है, eSa

    उस परम आनंद देने वाले माधव (ईæवर) कȧ वÛदना करता हँू।

    शÞदअथ[

    मूकं गंूगा

    पडगंु लंगड़ा

    य×कृपा िजसकȧ कृपा से

    ͬगǐरम ् पव[त

    वÛदे वÛदना करता हँू।

  • (2) पæयेम शरदः शतम ्जीवेम शरदः शतम।्

    Įणृुयाम शरदः शतम ्ĤĦवाम शरदः शतम।्

    अदȣनाःèयाम शरदः शतम,् भूयæच शरद शतात।्।

    अथा[त ्हम सब सौ शरद देखɅ हम सब सौ वषȾ तक सुने, हम सब सौ वषȾ तक

    बोलɅ। हम सब सौवषɟ तक दȣन-हȣन न हो एवं सौ वषɟ तक èवèथ जीवन िजयɅ

    और उससे अͬधक जीवन कȧ इÍछा करɅ।

    शÞदअथ[

    पæयेम देखे

    शरदः जाड़ा

    शतम ् सौ

    जीवेम िजये

    Įणृुयाम ् सुने

    ĤĦवाम वोले

    अदȣनाः दȣन-हȣन

    (3) संèकृत मɅ एक से दस तक संÉयाये ͧलखकर याद करɅ ͪपछलȣ क¢ा मɅ

    आपको बताया गया है।

    ****************************


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