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Class 7 Science

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(1)

gjs ikni Loiks"kh D;ksa dgykrs gSa\

vejcsy mnkgj.k gS&

¼1½ Loiks"kh dk ¼2½ ijthoh dk ¼3½ e`r thoh dk ¼4½ lgthoh dk ifÙk;ksa esa mifLFkr gjs o.kZd dks --- dgrs gSaA

dhVksa dks idM+dj viuk vkgkj cukus okys ikni dk uke --- gSA tks tho fdlh e`r ,oa fo?kfVr tSfod inkFkksaZ ls iks"kd rRo çkIr djrs gSa mUgsa - --- dgrs gSaA

çdk'k la'ys"k.k dh fØ;k le>kb;sA

tks tho ,d nwljs ds lkFk jgrs gSa rFkk viuk vkokl ,oa iks"kd rRo ,d nwljs ds lkFk ckaVrs gSa mUgsa --- dgrs gSaA

ja/kz D;k gS jU/kzksa ds nks dk;Z fyf[k,A

çdk'k la'ys"k.k dh fØ;k esa --- mRikfnr gksrh gSA

DyksjksfQy ;qä dksf'kdk,a n'kkZrs gq, fdlh iÙkh ds dkV dk fp= cukb,A Hkkstu dks 'kjhj ds vanj ysus dh fØ;k --- dgykrh gSA

'kjhj dh lcls cM+h xzafFk --- gksrh gSA

euq"; esa dkSu&dkSu ls ikpu vax gksrs gSaA budh fØ;k fof/k le>kb,A euq"; esa fdrus çdkj ds nkar ik, tkrs gSaA uke fyf[k,A

vehck viuk Hkkstu dSls idM+rs gSaA

fiRRkjl ---ds ikpu esa egRoiw.kZ Hkwfedk fuHkkrk gSA euq"; ds ikpu ra= dk ukekafdr fp= cukb,A

'kgrwr dk oSKkfud uke D;k gS\

fuEufyf[kr esa ls dkSu ls nks 'kCn js'ke mRiknu ls lacaf/kr gSaA

js'ke dhV ikyu] iq"i —fe] 'kgrwr —f"k] e/kqeD[kh ikyu] ouo/kZu js'ke dh jhfyax fdls dgrs gSa\

(2)

fuEufyf[kr 'kCnksa dk D;k vFkZ gS\

ikyu] ¼[k½ Åu dVkbZ ¼x½ js'ke dhV ikyu

euq"; ds 'kjhj dk rkieku ekius ds fy, --- dk ç;ksx fd;k tkrk gSA

FkekZehVj esa dkSu lh /kkrq Hkjh gksrh gS\

ekuo 'kjhj dk lkekU; rki fdrus fMxzh lsfYl;l gksrk gS\

leqæ lehj fdls dgrs gSa\

lfnZ;ksa esa ge Åuh oL= D;ksa igurs gSa\ dkj.k lfgr Li"V dhft,A lsfYl;l Ldsy dh vfHkdYiuk fdlus o fdl lu~ esa dh \

uhacw vkSj larjs dk jl [kêk D;ksa gksrk gS\

vEyksa vkSj {kkjdksa ds chp varj crkb,A vEy o"kkZ ls vki D;k le>rs gSa\

lwpd D;k gksrs gSa\

fdlh ,d izkÑfrd lwpd dk uke fyf[k,A Mh-,u-,- dk iwjk uke fyf[k,\

vEy fyVel i= dks fdl çdkj çHkkfor djrs gSa\

HkkSfrd o jklk;fud ifjorZu dks mnkgj.k lfgr Li"V dhft,\

crkb, fd fuEufyf[kr dFku lR; gS vFkok vlR;A

¼d½ ydM+h ds VqdM+ksa dks dkVuk ,d jklk;fud ifjorZu gSA

¼[k½ ifÙk;ksa ls [kkn cuuk ,d HkkSfrd ifjorZu gSA

¼x½ tLrs ¼ftad½ ysfir yksgs ds ikbiksa esa vklkuh ls tax ugha yxrkA

¼?k½ yksgk vkSj tax ,d gh inkFkZ gSA

ngh dk teuk ,d jklk;fud ifjorZu gS Li"V dhft,\

tc dksbZ eksecÙkh tyrh gS rks HkkSfrd ,oa jklk;fud ifjorZu nksuksa gksrs gSa Li"V dhft,A

jsfxLrkuh {ks=ksa dh vis{kk leqæ rVh; {ks=ksa esa yksgs dh oLrqvksa esa tax vf/kd D;ksa yxrk gS\

(3)

[kkus ds lksMs dk jklk;fud uke fyf[k,A ekSle dks ifjHkkf"kr dhft,A

vuqdwyu ls vki D;k le>rs gSa\ mnkgj.k nsdj Li"V dhft,A pØokr fdls dgrs gaS\

rfMr >a>kokr fdls dgrs gS] blesas gesa D;k& D;k lko/kkfu;k¡ cjruh pkfg, \ Åu çnku djus okys tarqvksa ds uke fyf[k,A

Å"ek pkyd D;k gksrs gSa\ mnkgj.k lfgr Li"V dhft,A Å"ek LFkkukUrj.k dh dkSu dkSu lh fof/k;k¡ gksrh gS\

/kzqoh; Hkkyw dks vR;f/kd BaMh tyok;q esa jgus ds fy, dkSu lh fo'ks"krk,a vuqdwfyr djrh gSa\

yksgs ij ftad dh ijr p<+kus dh çfØ;k D;k dgykrh gS\

ge 'olu D;ksa djrs gSa\

dksf'kdh; 'olu fdls dgrs gSa\

'olu nj fdls dgrs gSa\

eNfy;ksa esa 'olu fdl çdkj gksrk gS\

ekuo ds 'olu vax dkSu&dkSu ls gksrs gSa\

e``nk dks ifjHkkf"kr dhft,] e``nk fdrus izdkj dh gksrh gS le>kb,\

xsgwa vkSj pus dh [ksrh ds fy, dkSu lh feêh mi;qä gksrh gS\

e`nk çnw"k.k ,oa e`nk vijnu dks jksdus ds fy, dksbZ pkj mik; fyf[k,A jkf= ds le; gesa isM+ ds uhps ugha lksuk pkfg,A dkj.k lfgr Li"V dhft,\

vkj-ch-lh- ,oa MCY;w-ch-lh- dk iwjk uke fyf[k,A

:f/kj dks ifjHkkf"kr dhft,A jDr esa dkSu&dkSu lh dksf'kdk,a gksrh gSa] muds dk;Z fyf[k,\

dksbZ /kkod nkSM+ lekIr gksus ij lkekU; ls vf/kd xgjh lkals D;ksa ysrk gS\

'kjhj ds fofHkUu Hkkxksa ls jä dks okil ân; esa --- ykrh gSA ân; ls 'kjhj ds fofHkUu Hkkxksa esa jä --- igq¡pkrh gSA

jä ifjlapj.k dh [kkst djus okys oSKkfud dk uke D;k gS\

(4)

ikS/kksa esa ifRRk;ksa }kjk la'ysf"kr Hkkstu dks ikS/kksa ds fofHkUUk Hkkxksa rd ig¡qpkus dk dk;Z fdl laogu Ård }kjk fd;k tkrk gS\

LVsFkkWLdksi dk mi;ksx fyf[k,\

Qq¶Qql /keuh ,oa Qq¶Qql f'kjk esa D;k varj gS\

f'kjk vkSj /keuh ds nks varj fyf[k,A

euq"; dk ân; fdrus d{kksa esa c¡Vk gksrk gS\ uke fyf[k,A

tud ikS/kksa ds dkf;d Hkkxksa ls u, ikni ds mRiknu dk Øe D;k dgykrk gS\

uj ,oa eknk ;qXedksa dk ;qXeu D;k dgykrk gS\

ekuo esa dkSu&dkSu ls mRltZu vax gksrs gSa\

mRltZu ls vki D;k le>rs gks\

viksg~u ¼Mk;ykbfll½ fdls dgrs gSa\

ikniksa esa tuu vax dkSu gksrs gSa\ uj o eknk tuu vaxksa ds uke fyf[k,A ,d fyaxh iq"i o f}fyaxh iq"i esa D;k varj gS\ mnkgj.k nsdj Li"V dhft,A ,e-ds-,l- ç.kkyh esa pky dk ek=d D;k gS\

ljy yksyd dh xfr fdl çdkj dh xfr dk mnkgj.k gS\

ySafxd ,oa vySafxd tuu dks mnkgj.k nsdj varj Li"V dhft,A

ijkx.k fdls dgrs gSa] ;g fdrus izdkj dk gksrk gS\ foLr``r esa le>kb,A

dksbZ dkj 40 fdyksehVj çfr ?kaVs dh pky ls 15 feuV pyrh gS blds i'pkr og 60 fdyksehVj çfr ?kaVs dh pky ls 15 feuV pyrh gS] rks dkj }kjk r; dh xbZ dqy nwjh gksxhA

¼d½ 10 fdyksehVj ¼[k½ 25 fdyksehVj

¼x½ 15 fdyksehVj ¼?k½ 100 fdyksehVj vkorZdky fdls dgrs gSa\

fo|qr /kkjk ds pqacdh; çHkko ls D;k vk'k; gS\

nks ;k nks ls vf/kd lsyks dk la;kstu D;k dgykrk gS\

fo|qr /kkjk ds rkih; çHkko ds mnkgj.k nhft,A fo|qr cYc dk vkfo"dkj loZçFke fdlus fd;k\

(5)

fo|qr ¶;wt ls D;k vk'k; gS\

niZ.k dks ifjHkkf"kr dhft,A ;g fdrus çdkj ds gksrs gSa\

niZ.k rFkk ysal esa D;k varj gS\

vkHkklh rFkk okLrfod çfrfcac esa varj Li"V dhft,A ty laxzg.k fdls dgrs gSa\

çdk'k ijkorZu dks Li"V dhft,A

[kk| Ja[kyk ls D;k le>rs gks\ mnkgj.k lfgr Li"V dhft,A nks vkS"k/kh; ikS/kksa ds uke fyf[k,A

ty çnw"k.k ds eq[; dkj.k ,oa cpko ds mik; fyf[k,A ty gS rks dy gS* dFku dks Li"V dhft,A

ty dh fdruh voLFkk,¡ gksrh gSa\ mnkgj.k nsdj Li"V dhft,A ouksa dks gjs QsQMs D;ksa dgk tkrk gS\

ouksa ds D;k&D;k ykHk gS\

ty çca/ku ds fo"k; esa vius fopkj fyf[k,A fo'o ty fnol dc euk;k tkrk gS\

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