ncert class 10 science

s s sss s s sss ss s ss s s s ss s s ss s s s t

P

qr qr

2

t tt

ttt

P P PP P P

P P P P

P P P

PP

PP PPP

q P PP

rs rsr

3

r

P

q s

t

4

P

q

r

r

s

t

t

5

r P

t

t

t

t

t

q

s s s

t

t

6

r r r r r r r

t tt

P

PP

qs

r r

P P P

P P P P

P P P PP P

P P P P

P PP

P PP PP P P P P

7

Do

Yo

u K

no

w?

P P

8

t t

P PP PP P r P r P

q s r r P P rsPPP r r P P rrPr P

P P

P r s r P P r P P rP P P rP r PP rsPP q P r rsPP rP rPP r P P r P P PP

rP rr r rr r P rP r P P PP r P r r Ps PP P r r rPr P r s P r rP

P P

rP r P rs

9

P

qrs t rs qrs rs

rsrs rs rs rs rs

10

P P

t tt

rr

rr r

rrr r r

rr r

r rr r

r rr rr r r

qs s s s s s s s s s s ss ss ss s

s s ss s s

s s s s s q s ss ss s s

s s ss s s s ss ss ss s s ss sq s ss ss s s q sss

11

P P

ttt

qrs r r r

r rs r r

r

12

P P P P s P s P sP P

qrt

Ps P P s s P Ps Ps PP Ps s P s

s s s Ps Ps s s Ps Ps P

Ps Ps P s s s s P Ps ss s s s s P P s Ps P PPs Ps PsP sPs PsP P Ps

P P Ps P

P s sPs P P P s s s

P P s s P Ps s Ps

P P

Ps s P P P P

Ps s s Ps s P ss s s Ps P sPs

13

P P tP

q r s s s q r s s s s q srs s ss s q srs s ss rs ssr s

r

14

W hat yo u have le arnt

s

s s

s s

s s s

s

s

s s

ss

s

P s

s s

E X E R C I S E S

s s

Ps Ps

s s

s

s

s

s

s

s s

15

P

P P

P P

16

Gro up A ct ivi t y

P

P

t t t t tt t t t

t t t t t tt

t t t t t

t tt t

Do

Yo

u K

no

w?

t t t P t

18

t tt

PP PP P P P s P s P

P P s P s P s P s P PqP s PqP rs PqP s PqP rs P PqP

P P P P

PP P s s P

t tt

P P P P P P

P P P P P

P P P

19

P P

P P

ttt

P Pq

PqP

rs

2 0

t t r t r r

r r r

r

r

r

P r

P P P P

q s q s qs s qss sqs q

q s qq q s ssqsq

t

r t r t

s q q q

s s qs s q s s qs ss q

s s s s q q

s s sq qq q s q

s s qss q qs s s sqsq

2 1

t

t t

s P

q

r

q q q q qq r

r q

t t

q r r

2 2

t

P PP

P P

P P P

q q qrr qr qr q s ss s ss

P

P

P

P P P P P

2 3

P P

s q

r t

t

s s t

s t

r s

t t s t

2 4

Do

Yo

uK

no

w?

ttt

P PP P P P

P P P PP P qP P rP P s PsP P q P

sP

2 5

t

t

P qrr qsqs r q rr r r q q qrrqsqs

q q r q qr srr s q q s s r qs r rr q qr r r s q qr

q qs q qs qr r sqr sr r q q

r q qr r r r sqr sr r q

q r r r q r r sr

2 6

P P P P

r r r r r rtqs rtqs r qq q q

P P P P

2 7

P t t

s

s t q r t t

t t t t

Do

Yo

uK

no

w?

2 8

r r P r r r r r

t

q q

s t

t t

r r r

r r

r r rr r

r r r r

Do

Yo

u K

no

w?

2 9

s

t tt

P P P P P P P P P P P P PP P

q r

P P PP P P P P P

PP P P P P P P P P P

P P P P P

3 0

s

s

s

s

s

s

s s

s

s

s

s

s

P P P P P

3 1

P P

q q qrst

P

3 2

t

P

s

s s

q

s r s

t

3 3

P P P

r

t P P P P

q s q s s q q s


3 4

s

E X E R C I S E S

s s s s

s s s s

s

s s s s

s

s

s

s

s

s

s

s

3 5

s

s

s s s

s s

t s s

s

s

s

s

P P

s s

t

s P

s s

P s

r

s

s

Gro up A ct ivi t y

3 6

PP PP P P P P PP

Ps PP sP

t t t

t t t t t tt t t

P P q rs rr t tt

s sr q s s rs r s s r

3 8

P

t t

t

t t t s

s t t

t t t

t

3 9

t ttt tt

P P P

P P P P

qrs sq r qqrr

t ttt tt

P P P P P

4 0

t t tt tt

P

q rs rs

4 1

t tt

P P P

P P

P P P

P P

q r

s

q r q

q r q

q r q

q q r q q

q q r q

q q r q

4 2

t

Do

Yo

u K

no

w?

PP P PP P

P P P P P P

PP P P PP PP P P

P PP P P P PP P P P P

P P P P

P P P P P

P P P P PPP P

P P P P P P PP P P P

P P PP P

P P P P PP P P P

4 3

P

4 4

ttt

P

r

Do

Yo

u K

no

w?

r

qss

ttt ttt

P

4 5

r

r

s

t s s s s s s

s

P

s s s s s

q

r r r r rr

4 6

r

P P P

P P s

P PP

r

q t

4 7

rP P

q s t

4 8

r

P P P P P P P P

qsts q

P P P

4 9

P

r t r srrs r s s

t t r t rsr rs t r t s rs ts s

t s tq tt s

5 0

s s

s s s s s

s s ts ss

s

s s ts ss

t s

s s s ss s

s s s ts s s s

s

ts ss s

s s s

s s

s s

P

r rr

r r

q

s s s s s s s s t ss t sss

ss

s s s ss s s s

ss

5 1

P

qrs qts qrs

qts qrs

5 2

P s

qrt rr t

trt r trqq tr rr r t trqqq r q trqq tr q r qtrqq q tt t qtrqq qr r tr

53

t t tt tt

P

P

P

r q s q r q r q r

5 4

Do

Yo

u K

no

w?

P

P

r

t t

t M

ore

to

Kn

ow

!

5 5

P


P P P P

P P P PP PP P P P

PP P s P

P P P P PP PP P P P s

P P P P P

P P P P P P P P P P P P P P P P s

P P P P P

P P PP P

P P P s PP PP P P

P P P P P P P

5 6

E X E R C I S E S

5 7

P

P

t t t

P P P P PP P P P P P P P P P t t t s t s tq r tq t t t

t t

5 9

s s s s

s s s s s s

s s s

s s

s s s

s

s

s s

s s

s s t

s

s s

s s s

ss

s s s

s s

s

s s s ss

s

s s s

s s s

s s s

s s s s s

s s s s s s s

s s s

s

s

s s s s s

s

s s

s

s s s s s

s

s s s s s

s s s s

s s s s s

s s ss

s s s

s s s s

s s s

ss s s

s s

s s s s

s s s s

s s

s s s

s

P P

qrq

6 0

r

rt

t

s

s

s

s

s

s

s s

s

s

s

s s

s

s s

s

s

s

s

s s

s

s

s

s

rt

P

t

rt

6 1

t t t t t t t t t t t t

P P

P q r s

t

t t t t t t t t t t t t tt t t t t

Mo

re t

o K

no

w!

6 2

s

s

s

r

s

s

s s

s

s

s

s s

s s

6 3

t t t t t t t t t t

s s s s s s s s

t t t t P t t t P t

qr rr r

t tt

r rr r

t P

t

t

t t t

tt

r r rr

Mo

re t

o K

no

w!

6 4

s s t

t

P

P

6 5

P

q r stq

6 6

P P P P

qrqstsrsq s

s

t t

6 7

t tt

P

P

P

P

q rsq rsq q q q

6 8

P

6 9

PP P P PP

PP PP P P P PP P P r P

q P st q s P sss q s P

P P P P

PP PP P P P PP PP P P P r P P P s P P P P P r P P

7 0

t

Do

Yo

u K

no

w?

t s

t s t

P P P P P P P P P

P qr PP P PPP

P PPP P P

P PPP PP P

Mo

re t

o K

no

w!

7 1

s s s s

s s s

s s s

P P P P P P P PP P P

P PP P

qrtt r t tq q

s

7 2

t t

s s s

s

P P

P P

qr q qr

s s s

s

s s

s s s s s

Do

Yo

u K

no

w?

7 3

t t

s s

P P P P P P P

P P P P

P P P P P

P P P P P PP P P

q Pr P PP

PP r P P PP P

Mo

re t

o K

no

w!

7 4

P PP P P

q r s P s PP t q s P

q P s

s P q

s sq

P s

P P s

P P

P s q

P q PP q

7 5

t

Mo

re t

o K

no

w!

7 6

t t tt tt

t t t t tt tt

P s

7 7


E X E R C I S E S

7 8

Gro up A ct ivi t y

P

r

qst t t t t t

8 0

t tt t t t t

t t t t t

t t t t

t t t t t

t t t t t

t t t t t

t t t

t t

t t

t t t

P r r

s

tt t

t t t t t t tt t

t t t t t t

t

t qq

t

t t t

t t t t t t

t t t t

t t t tt

t t t

t t t t

ttt t t t t tt t t t t tt t t t t t tt t t t t tt t t t

t tt t t t t

tt t t t t t t t t t t

t t t t t t t t t t tt t t t t

P 8 1

s s

q r t q q q q

t t q q q t t q q q

q

8 2

t

s

t t

t

t

t

P 8 3

s

8 4

s s s s s s s s s s

s

t tt

P

s ss sss s s sss s ss s s s s s s ss ss ss s s s s s ss s s s sss s s

q

r ss s s s s s s s s s s

s s s ss s s s s s s

s s s s s ss s s

ss s s s ss s s ss s s sss

ss

r r

P 8 5

t

t t t

t

qr s sq r r s qr r s r r s

s sq s qr q qr q qr s

qq s qr r s s qr q s r r s s q r r s qr

t

q s r q s r q r r

t t t t t t

P 8 7

ttt

t tt

r

r q

s r r

q

8 8

t t

t t t t

r r r

P

P s P q

P P s P P s

t

t

s P s qq

P s s

P

s

P 8 9

s

q r q r

t s s s s s

s

t s

s s s

t ss ss

9 0

t tt

P

P

P P

P 9 1


t

t

E X E R C I S E S

t

t

t

t

9 2

Gro up A ct ivi t y

s s s s s s s s t s s s s s s s s s s s s s s s t s s s s

s s

9 4

t

9 5

t

P P PPt t t t t

qrs ss

t t

9 6

r

s

t Ptt P

q q

q

q q

q qq

q q

9 7

s s s s s s s s s s s s s s s

P

t t qtrt qtrt

s s

s s s s s

9 8

t t tt tt t t

t

t t

t t t t tt

t t t t

t t t t t

tt s s

t t t tt

t tt

t t t

t t t t t t

t t

t t t t t

t t

t t tt t

tt t t tt tt

t t s t

t

t t t t t t t

t t

t t t t t t t

t t t

t t t

t t t

t t s t

t t

t t t t t

t t t t t t

P t

t t t t

t t t tt t t

t

t t t tt

t t tt t t t t

t t t t

t t t t t

9 9

ttt ttt

P

P

q

10 0

t

t

s t

t

t

s

s

t

t

t

t

t

t t

s

t

t

t t

s t s

t

t

t

t

Mo

re t

o K

no

w!

t

t

s s

10 1

t tt

t tt t tt

P

q r sq q s q s sq q s q q qq q q s q q

10 2

t

P

Mo

re t

o K

no

w!

10 3

t

t

t

10 5

rrtt

Do

Yo

u K

no

w?

P P P P PP P P

P P P P P

P P P P P P P P P P P P

P

q s

P P P P P P P PP P P P

P P P P P P P P

P P P P P P

P P PP P P P

PP P P P P P P P P P P

P P P P P

10 6

t

s

t

t

t

t

s

t

P P

10 7

Mo

re t

o K

no

w!

s

10 8

t

t t t t t t t t t t t t t t t

rr

t t t t t t tt t t t tt tt t t

tt tt t

t t t t t t t

t t t t tt t t

10 9

t t t

t t t t t t

Pt t t t

t t

tt t t t t

t t t t t

qrqs q s ss s qq

110

P s s

s s s s s t s

s

s s s ss s

s qr s s s

111

Mo

re t

o K

no

w!

t

P

112

P P


P P

113

P

E X E R C I S E S

t t t s

11

s

s s s

s s

s s

ss

s

s

ss s

s s

s s s

s

s s s s s

s s

s s

s

P

ss s s s s s ss

q r t

r

11

s

s

s

s

11

s s

s

P P PP P P P P qrt P P P

1

t

P

1 1

t tt t t r

P t t t t t t t t t t t t

t t t s tt s t

t t t t t t t s t

q q q q q

q qq

1

t t t t t t t t t t t

t t t t t t t t t t t t t t t t t t t t t t t t t t t t t t t

t t t t t t t t t t t t

tt t t t t t t t

1

s

s

s s

ttt ttt

P

P P

s

1 4

s s

t

t

t

1

q

E X E R C I S E S

P

12 6

t

rt t t t

t

t

t t rt t r trt t

t t t

t trtr r t rt

tt r t

t rt r

t r t

t t t t t

rt t t t t

tt r t

t

t t t t t t

t t t t r

r r t

r r P t

1

s s s s ss

s s s s sss s s

t t

P s s s s s s s s s s

s s s s s s s s s s s s s s s s s s s

1

t tt

ttt

P

qrrqs

tt tt

1

t t tt t t t P t t t t

t t t t t tt t t tt

q rs

t t t t t t t t tt t t t t t t tt

t t t t tt t t t t t t t t t t t t tt tt t t t

tt t tt t t t t t tt t t t t t t t t t t t tt tt t t tt t t t t t t

tt t t t t t t t t t t t t t P t t t t t t t t t t t t t

1 1

t s t t t t tr t t

t t

t t

r t t tr ttr t t t

t r t t rt tr tr t t

P

r t rr t tr t t t t t t t t r t rt tt t tr r t t t t t tt t t tr tr rtr tr t t r trt r t tr t t trt tt t trt t t r t tr t t t r trtt

1

ttt ttt

P

q rs rs

t tt

1

P

q rs st s sr

1 4

rr rr r r r r rr

r r r r r r r r t r r r r r r r r r r

rr r r r s rr r r

r r r r

rr t r r r rr r r r r r r

r r r r r r r r r r r r r r r r r r s r r r r r r

r r r r r

r rr r r r

t rr r r r r r r r r

r rr rr r r r r

t r r r r r r r r rr r r r r r r r r r r r r rr r r

PP P

1

s

r

t

P P

P

q P PP

q P P

r

1

P

t

t

t

t

t t

t t

t

t

t t

s

t

t

t t

1

P

P

1

t

t t t t t

r

r

1

s

s

s

s

s

s

s

P

s

s t

s

s

s

s s P

s P qr q s P t t t

14 3

t

r

t t t t

P s P

q q q q q P s q qP

r r

t t t t

tt t t t t

14 4

s s

s

s t s q s t s s q s t s t s t s s ss

s qs s st s

P

rrr r r rr r

tt t s t s t t s s ss

14 5

r r r r r r r rr

r r r r r r r r r r

r r r r r

r r r

r

P

P s

14 6

t

s

t

s

s

s

t

14 7

r r s r

I

r rr sr r r rr

P

P

t

q

r r r

14 8

t t t t t t

t t t t t

t

t t

t

t t t

t

t t t t

t t t t

t t

t t t t t

t t t t t t

t

t t

t t t

t t t

t t t

t t

t t t t

t t t

t

t t t

t t t t

t t

t t

t t

t

t t t

t t t t t

t t t t t

t t t

t t

t t t

tt t

t t t

t t t

t t t

t t t

t t t

t

t t t

t t t t

14 9

r

t t t t t t t t t

t t t

P

t t t t t

t s

t t

150

t

t

t t t

P

Do

Yo

u K

no

w?

151

s s s

s s s s s s s s s

s s s s s s

s s s s

P P P P PPPP

s s s s s s ss s

s s ss s s s ss s s s s

152

r r

153

t

PPP

t

154

t t

st

s s

t

s

s t

t

t

s

t

t

s s

t

s s

t t

Do

Yo

u K

no

w?

155

P s P s s s

s

s P P ss P P P s s P s P PP P s

P P s P P PPP P s P P P P P s Ps P P P P s s

s s s P s P P P P s s s P s P PP P s P P P Ps P P P P P P s P s Ps q P P

rt

156

t t t t t

t t t t t t t t t t t t ttt t

P

t tt t

Mo

re t

o K

no

w!

qrs

157

t

s s

s s t

P

158


t

159

s

s

s

s

E X E R C I S E S

t s t s

Mo

re t

o K

no

w! s q q

t P P Ps

16 1

P

q r

s t

16 2

t

r

r r

r P r

r P r r P r

r r P

q s q s

q

q

16 3

s

s t

r r rrr

P

q

16 4

t t t t t t t t t t tt

t t t

P P

q qr s q

q

t t t t t t t t t t t t t t t t t

t t

t

t

t

16 5

r

r

t

r

P

16 6

P

q r q r qs q

t P P q q

16 7

P

P

q r st qt

16 8

t t t s

t t t t t

P P

qr q r rrr

t t s

s

16 9

t t t t

r r r

t t t t t t t

P

t t t t t t t

t t t t

t t t

q

s q

t t

t t t t t t t t

17 0

P

q

r st

17 1

P

q rs t q P

17 2

t t t t tt t t t t t t t t t t rt t t t tt

P

P

t t t t t t t t t t

P

t t t t t t stt

17 3

s s ss ss s s s s ss ss s s s

s r s s s s s

s s ss s

P P P P PP P P

P P

P P

P P

P

P P

P qtqt

17 4

r r

s

s

P

t

r r

q

q

17 5

q

P

P

q

r

Mo

re t

o K

no

w!

17 6

s s s s s s

s s

s

P P P P P P P r Pr P P

P P P P r P Pr P P r P

qr Pt t P r P P rP r P r P P P rP

t PP r P P rP P P PP P P

P r rr P P PPPP

17 7

t t t t

P P

P

t t

t t t

t

t t t q t

17 8

r

P

t

qs

17 9

t t tt tt

P P

P P

r r

q

s s s

180

r

rt r

t r rr

r

r r

r

s

r r

r

t

r rr

r r

r

s

r

rt

r

r t

tr s

s

r r r r r

r s r r

rr r r rt

r s

181

P P PPP P

s ss P P s

P P s P P P

PPP P P P s P

P P P ss sss

P P

q

s

s P r Ps P t

P tP P P r P

s

r P P P P P P

Ps P r ss P P P

sP P P s P P

182

P

q

r

rst

t

183

P

qr s

t

184

s

tP P P P P P P P s s s

q r


Mo

re t

o K

no

w!

185

P

E X E R C I S E S

P

s

186

t t

t t t

tt t t

t

t

t t tt

t

t

t

t

t

t t t t

t t t t t t t

t t t t t t t t

t t t t

t t t tt

t

t t

t t

t t t t

t

t t t

t t t t t t

t t

t t t t

t t t t

t t t t

t t t

t t t t t

t t t t t t

t t t

t t t t t tt

t t t t t

t t t t t

t t t t

t t

t

s

P

188

s s

Do

Yo

u K

no

w?

s s s s s s s s s s s ts s

s s s s s

ts s s s s

s

189

PP P P

s

t

qr r q r q qq

Do

Yo

u K

no

w?

19 0

t t

t

P P P P

qqr s

q q q r rq r qq r s

r s

r rq r qr qr rq qr s q qqrs

19 1

P P t

P

P P t t tP t

q r r s sqr r qs sr q

19 2

P

P

s P P

P

s

P

P

s s

q rt q t qq q q q q q q q q q q qq q q q q q q q q q q qq qq q q q q q q q q q q q q

19 3

r

P P P P Ps

P Ps P P P Ps

P P P P P Ps ss

P P P P

P P P s P

q r t t

q r

19 4

s s s s s s s s

s s s

s s s s s r s s s t s s s s s s s ss st s sst s s s s s r s s ss st s

s s s ss s sst s s

s s s s s s s s

r s s t s s s s ss s r sst s s t s t s s s

rs s s sss ss sss s s s

ss s t s ss ts s ss s s

ss s s s st s s s s r s s s

s s r t ss s st s ss

t s ss s st s

s st s s s s t s s s s

P

P PP

PP P PP

19 5

s s s ss s

s s

s s s

s s s ss s s

s ss

s ss

P

s s s s

ss s

ss s s

ss ss

t ss

ss s

ss

ss s s

s s ss ss s s

s

s s s s s

s s

s s ss ss

s s

ss s s

ss s s s

s s s s

s s s

qrr

s s s s s

s s s s ss s

s s ss s

s s s s s

s s s

s s s s

s ss s s s

s s s s

s s s s s

s s s sss s

s s s s

s s s

s s s s

s s s s s

s s s s

19 6

s s s s t s t s t s t s t

ss t

s s

P

q r r r

s t

s

19 7

t

t

t

t

t


t t

E X E R C I S E S

2 0 0

t

t t t t t t t

tt t tt t ttt t t t t tt t t t tt

P P P

qr ss t t t

q t

2 0 1

t

P

qrs sr r

Mo

re t

o K

no

w!

2 0 2

P P

q r

st t

t s

t

2 0 3

P

P

t qt qrstt qrstt q

2 0 4

s ss s

ss

ss

ss s s ts

P

q r

r

s ts

P

2 0 5

t t t t t t tt t

t tt t t t

t t t t t t t t t

t

r

t t tt t t t t

t t t t t t tt t t t t t t t t t tt t tt t t t t t tt t t t t t t t t tt t t t tt

P P P

P qs

t tt tt t t t tt t t t t t t t t t t t

2 0 6

tt t t t t ttt tt t t t t t t t t ttt t t t t t t t t t t r t tt t t r t t t r t t tt t t r t t t

P

q s qq q s

P P P

P

t tt t t t t t t t t t t t t tt r t tt t t t t tt t

2 0 7

r r r

r r r rr

r r r r

rr r rr r

r

r

r r rr r

r r r r

rr rr r

r r r r

r r r rr

r rr r

r r r rr

r r r r

t r r

rr r r r

r r r r

r r r r

r r r r r

r r

P

q

s q

q

q

q

q

s q

q

s

s

s

s

2 0 8

P

t

2 0 9

s P

t

qr

2 10

sss

t tt

P PP P P

PP PP

PP P

PP

q r

s s s s ss

2 11

s

t tt

P

P

P

s s s

s q q r s s q s

2 12

s

r

s

P r

qt t qt t

qtq q

2 13

t

PP P P P PP P

P P P P P P P P PP P

qrs s

PP P P P PP P P P P PP P PP

P P P P P P P PP PP P PPP P

2 14

r

r r

r r

s

P

s

ss s

ss

P P

P

P q

t s

s s

s

ss

s

t s

t

2 15

P P P P tt

P P P P P

tt

qr sP

2 16

r

t t

P

t t t t

t

qs q qs

qq q qq q

2 17

P

qrst

2 18

t

t

P P

P

q r PP s P r q P

2 19

P

t

tt

tt

Mo

re t

o K

no

w!

qrsqr

P

qrsq

2 2 0


P t

2 2 1

E X E R C I S E S

t

P

t

t tt

P qq rsss q sss r qqr r sssr s r

4

s s s t t

P

P PP P P P qr t

P P P

t

t

P P P P P

q r rs q rs q

s s r s

q r ss s q

r sr s

r r rq s qss q s sr r q sr s

rs rs s sr s rs rs r qr s

P P

t t

P

qrs s rr rs rsss qrs s s q rr

r

r

P P s

s P s s s

P s s

s s ts P

P P s s s

Ps P s s P s s P

q s s

t t t t t t s

t t t

t t t t t t

P

qr r r q rq q qr qr r q q qr r rqq q

t t t t t t t t t t t s t t t t t t

t t tt tt

P

q rq s

q s

rq s

t P t Ptt Ptt P

s

s

q r

q

1

t t t t t t ts tt t t t t t tt t t t t t t s tt t t t t t t t t t s t t t t t t t t t t t s t t t t t t

tt s tt t t tt tt t t tt t t t t t t tt t t t t tt t t t tt t t t t t tt t t t t t t tt s t t t t t t t t

tt t t t t t t t tt t t s t s tt t t t

t t t t t t t s t t t t s t t t t t t t t t t

s t t t tt t t t r tt tt t t t t tt t t t t t t

P

q q q q q q q

q q

t

s

t

t t

s t t t t t

P P

s s

s s s s s

s s

t

t s s

t t

t t

t q

P

s s

r

2

t t t

t

P P P P P P P

qrsq qs

t tt t t

P P P PP P P P P

P P P P

P P P P P PP

4

t t

t

t

t

t

P t

t

t

t

t

t t

r r

r

qs

t tt

r P r

P P

P

P P

q s s s s qs s s

s sq

s r s t t s t t t t s s r s r r r s r s r ss r r r s s

P

q

P

t t t t

q r ss

q r r r

ss t

P P PP P PP P

PP P P PP P PP q q P r q P PP

q P q P P qP P PPP

t

t

t

t

t

t t

t t t

t

t

t

t

t t

t

t

4 1

s s s

s s

s ss

s

ss ss

s

s

s

s

s ss

s ss

ss

t s t t t t P

t

qr r q r r q qr qr r r

4

r r

s

s s s

r r

P

r

4 4

s r

P

qt qt qt qt

4

s

P P

P P

qr t

4

t t

t t

t

t t

t t t t

t

t t t

t t t

t t

t

t

t t

tt t

t

t t

r t

t

t t

P

qs

4

t

t

r t t

t

s

t

s

s t

s

r

s

t

P

r

s

s

P

t

2

r r r rr r r r r r r

PP P P PP PP PP PPPPPP P P

r

t tt

q s

q

r r r r r r r r r

r r

4

r rr rr rr r rr r r r r r

t tt

r r r rr

r rr r

r rr r r

P P P P P

P P P P P

P P P P

P P P PP P

r r r r r r r r r rr r q r r r s

t tt

P P P P P P P

P

t t

t

q rs

2 1

t t t t t t t t t

t t tt t t

t t

t t t tt t t

t tt tt t

t t t t

P

t

t

t t

t

t t t

t t t

t

t t

2 2

s s s

s s

t t tt tt

P P

s s s

s ss s ss s ss ss s s ss s s

2

t tt

P P P P P P

P P P P P

P P P P qP Pr P P

s P

r PPP P P P rP

P P P

P P P P P

2

r

r r

E X E R C I S E S

t tt

r P

r

P r r

r P P P P r

t t t tt t t t tt t t t tt t t tt t t t t t tt t tt t

t t t t q

P P P P P P P r s P P

2

t s t s t t t s s

t t

P P

q r q r q qq qq q qq q q

s s s t s s s

s s s t s s

2

s

t tt

P

2

t

P P P P P

P P P P P

P P PP P

P

P P P PPP P

qrs

qrs

2 6

s s

s

s

s

s

s

s s

s

s

s t s

s

s

2 6 1

r t

P P

q sqs q s qs

r r

2 6 2

tP t t

qrs rr r r r rr s r r qr q r

q r r s q s r s r q r r r

r s r s

s rrr qr r rss r r r r

2 6

t t tt tt

t tt t tt

t tt

P P

s

qr

2 6

E X E R C I S E S

s P P

P P P

2 6

P

q

r r s t

2 6

t tt

P

P P

t tt

P s P

PP

P

2 6

t r t r

r r r r

P P PP P PPP

P P P P PP P

PP P P P P P PPP PP

PP P PP PP P P PP PP

q s sq

r

2

t tt

r s

s s

P

q

2 1

s

t t tt tt

s

P s P P P

2 2

t

P

2

r r

P P PP P P P P P P P P PP P P

qs t P P P P P P PP P P

P P P P P P

P P P P

2

r r

r t t r

r r

r r r

tr

t

r r

r

r r r

r

r r

r r r

r r

r

r r r

r r r

r

P P r

r r

r

r r r r

r tr r r

r r r r

r r

t r

r tr

r

r r

r rr r r r t r r r r r

2

t t

t

P P

P s P

2 6

r

P P

P P P P

P P P s

q t

2

t t tt tt

P

2

t

E X E R C I S E S

P

r

2 1

P

r r

r r

r r

r r

r

r r r

r

ncert class 10 science

Documents