Subject : Maths

1. Express 8

7 in the decimal form.

2. Express 625

2157 in the decimal form.

3. Express 0. 585 in the form of rational number.

4. How many number of consecutive zeros in 7532 443 ?

5. Find two irrational numbers between 0.2101 and 0. 2 .

6. If then 17 32 x then x=?

7. If a = 3, b = 2 then find ab.

8. Simplify

3

4

4

5

5

3

2

3

816

24325

9. Simplify 2

5

53

32

42

21

75

75

75

75

10. Show that 11

1

1

1

abba xx

11. Write 3

12

1

649

1

as a rational number.

12. If 2713x , What is the value of ?1

2x

13. If 4

1

2

12

m

m then ?5

14

14

1

2

12

1

2

1

m

m

m

m

14. If 3326416

xx, then 224 x = ?

Holiday Homework Grade - IX

15. If 162

2mn

nm

and 10

1

2a then find 122

2

pnm

pnm

a

a .

16. If yx 393 and xy 428 then find the x +y

17. If 123 1 yx

x , 0816 24

y

x

then find yx .

18. Show that 13

3.

3

3.

3

3

ac

a

ccb

c

bba

b

a

19. Show that 1..3

3

2

2

1

1

xz

x

zzy

z

yyx

y

x

a

a

a

a

a

a

20. Show that 1)(

)(

)(

)(

ba

abb

abb

baa

baa

x

x

x

x

21. If 3x , find the value of

13

2

3

2

3

1

3

1

xxxx .

22. If 100525 121 xx , find the value of x .

23. Simplify :

5/1

4

3

3

2

)243(

2

256

1

216

4

24. Simplify :

3

4

4

5

5

3

2

3

816

24325

25. If 052123 2 xx

then find x.

26. )(2

22333

2222

cba

ac

ca

accb

bc

cbba

ab

ba

xx

x

x

x

x

x

27. bc

acab

cbca

ba xxx

1

11

11

1

=1

28. )()()( 222222 acacac

cbcbcb

bababa xxx

=1

29. If zyx 532 =2160 find yx, and z . Hence compute the value of zyx 523 .

30. If 1176 = cba 732 find the value of a, b and c. Hence computer the value of cba 732 .

31. If , zyx 1232 show that xyZ

211 .

32. If zyx 632 , show that zyx

111

33. If zyx cba and 2b = ac, then show that xz

zxy

2 .

34. Simplify :— 2525

35. Simplify:— 22352

36. Simplify:— 12

1

.

37. Rationlise the denominator of 023

23

.

38. Simplify :— 35

35

35

35

39. Simplify :— 223

40. If 32x , find the value of x

x1

.

41. If 15x = 4, then find the value of x

x1

.

42. Simplify— 625

43. Simplify :— 1827

3248

44. If 154x then find x

x1

.

45. If 83 then find 2

2 1

xx .

46. Simplify:— 35

35

35

35

.

47. If 236.25 , ,162.310 414.12 and 732.13 then find the value of

732.13 .

48. If , find the value of 3

3 1

xx .

49. If 83x , find the value of 3

3 1

xx .

50. Simplify:— 54

54

54

54

51. If 347

335

= a+b 3 then find a and b.

Subject : [ S.St. ] Topic :- (Any one)

1. Election of 2019. Facts and figure.

2. Ramification of French Revolution on the world.

3. Journey of River Ganga from source to mouth.

• Students can choose any one of the above given project.

• All projects to be made on chart paper.

• It should be hand written.

• Students can include photograph diagram, related to the project.

Criteria for Assessment.

1. Content accuracy, originality and Analysis. — 2

2. Presentation and creativity. — 2

3. Viva voce. — 1

Subject : [ Physics ]

Chapter Motion

1. An object has moved through a distance can it have zero displacement ? If

yes, support your answer with an example.

2. A farmer moves along the boundary of a square field of side 10 m in 40 s.

What will be the magnitude of displacement of the farmer at the end of 2

minutes 20 seconds from its initial position.

3. A particle moves over three quarters of a circle of radius r. What is the

magnitude of its displacement ?

4. A car travels a certain distance with a speed of 50 km/h and returns with a

speed of 40 km/h. Calculate the average speed for the complete journey.

5. On a 100 km track, a train travels the first 30 km at a uniform speed of 30

km/h. How fast must the train travels the next 70 km so as to maintain

average speed of 40 km/h for the entire trip.

6. Deduce S = ut + 1

2 at2 algebraically where all the terms have their usual

meanings

7. Establish V2 – u2 = 2as algebraically

8. A wooden slab starting from rest, slides down an inclined plane of length

10 m with an acceleration of 5 m/s2. What would be its speed at the

bottom of the inclined plane.

9. Show that the slope of distance time graph gives velocity of the body.

10. Show that the slope of velocity-time graph gives acceleration at the body.

11. Prove S = ut + 1

2 at2 by graphical method.

12. Prove V2 – u2 = 2as graphically.

13. Draw velocity-time graph for the following cases :

(a) When the object is at rest.

(b) When the object is thrown vertically upwards.

14. Prove v = u + at by graphical method.

15. Define uniform circular motion. “Uniform circular motion is an accelerated

motion”. Justify your answer with reason.

Subject : [ Chemistry ]

(Section- A+B only)

Chapter-1 Matter in our surrounding

1. Write the characteristics of particles of matter and particles of

matter and explain each with an example.

2. Write the characteristics of solid, liquid and gas.

3. Write the factors which affect the rate of evaporation.

4. Why should we wear cotton clothes in summer ?

5. Why do we see water droplets on the outer surface of a glass

containing ice-water ?

Chapter-2 Is matter Around Us pure

1. What is mixture ? Write difference between homogenous and

heterogenous mixture.

2. Define solution, Alloys and suspension.

3. What is Tyndall effect ?

4. What is colloidal solution ?

5. What do you understand by concentration of a solution ?

Note :- Do holiday homework in chemistry note book.

Subject : [ Biology ]

Do Q.no.– 1, 2, 3, 4, 5, 6, 7, 8, 9 of Pg.-66, 67;

in your Bio notebook.

Subject : English

I. COMPREHENSION – SHEET ATTACHED

II. BIO SKETCH

III. FORMAL LETTER

IV. DIALOGUE COMPLETION

V. SPEECH

VI. PREPOSITIONS

VII. JUMBLED SENTENCES

Reading

Now read the passage carefully and answer the questions that follow.

ROCK CLIMBING

(1) Rock climbing is a fascinating adventure sport today and first gained popularity in the

UK, Europe and later in India. Rocks and mountains always pose a challenge to the

human sense of adventure and rock climbing is mastering the techniques of climbing on

exposed rocks of any height and gradient. It is an independent mountain sport activity as

an well as an important part of mountaineering. In Mountaineering history, the first

record of climbing says that Antoine de Ville led a team of climbers to Mt. Aiguille

(6’228 ft.) in the alps in 1492 Thereafter, a few more climbing records are found between

the 16th

and 18th

centuries. But rock climbing as an activity began more or less at the

beginning of the 9th

century in the Alps and then spread to other European countries and

was later started in India by the British.

(2) One can gain confidence, personal satisfaction, immense pleasure and develop

tremendous physical and mental stamina, endurance and will power through this sport.

There is no age bar or special qualification for rock climbing but it requires basic

physical fitness, knowledge of techniques or guidance of a trained/experienced

climber/instructor and good equipment for safety.

(3) Today, advanced climbing techniques and better climbing gear have been introduced.

Rock climbing gained popularity as one of the weekend outdoor activities in the country

after the first successful expedition to Mt. Everest by Sir Edmund Hillary and Sherpa

Tenzing Norgay in 1953. Many government and private training adventure clubs/youth

organisations sprang up all over the country ot promote outdoor activities. Nowadays,

rock climbing is popular in educational institutions too for character building of the

youngsters.

(4) The Indian Mountaineering Foundation (IMF), the mountaineering headquarters of India

based in New Delhi, took birth in 1958 with the aim to coordinate mountaineering and

trekking activities, organise and support expeditions and supervise the functioning of the

mountaineering institution in the country. The IMF has played a major role in promoting

mountaineering and climbing activities in the country. Recently, different state tourism

departments and corporations also initiated a plan to promote adventure tourism by

including this activity.

Work in pairs ~

Discuss with your partner.

What adventure activity would you like to do? Why? Why do you think people do

dangerous or adventurous sports?

Is it fun to be a climber or a mountaineer? What qualities do you think one should

have to be a good climber or mountaineer?

Work Individually ~

(5) India has vast potential in rock climbing and other adventure sports being home to the

mighty Himalayas, Aravli Mountains, Eastern Ghats, Western Ghats, Vindhya Hills,

Chhota Nagpur hills etc.

(I) Given below is a summary of the passage complete it by writing the missing words

against the correct blank number in the space provided.

Rock climbing is an (a)………………sport which is fast becoming (b)……………..in

India thanks to the vast (c) ……………regions the country has. Besides the personal

satisfaction, pleasure and (d)……………..it provides, rock climbing has many benefits

e.g. it develops tremendous physical and mental (e) ………… .It also develops the

(f)……….of the youth. The Indian Mountaineering Foundation (IMF) has played a

(g)……………….role in the (h) …………of mountaineering in India.

(II) Complete the following table with relevant words or phrases. Write the answers in

the space provide. Do not copy the complete table.

DATE EVENT DATE EVENT

9th century (a)…………………… 1953 (c)…………….

1492 (b)…………………… 1958 (d)…………….

16th & 18th century Record of rock climbing found

(iii) Find words from the passage which mean the same as the following from the

paragraphs indicated. Write the answers in the space provided.

(a) huge/enormous (Para 2) (b) dress or clothes for special purpose (Para 3)

Space for answers

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Writing (Letter)

Suppose you are Arjun Vajpayee, the youngest Indian to scale Mt. Everest. Your cousin

wants to take to rock climbing and mountaineering. Write a letter to her complimenting

her on her decision and advising her what she should do to learn mountaineering and

rock climber. Offer to train and help her become a confident and expert mountaineer and

rock climber.

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Writing (Dialogue Completion)

Complete the following conversation between Malati Mathur and a Trekking guide.

MALATI MATHUR : I’ve heard a lot about trekking. Why do people. Find

it so exciting? What’s so great about it?

TREKKING GUIDE : Well, you see trekking is probably the best way

experience the great outdoors. It is not only the

journey that is exciting but the destination as well.

MALATI MATHUR : Hmmm! (a)………………………………………

……………………………………………………..?

TREKKING GUIDE : There are treks organized by many touring

companies, or if you are the more adventurous type

you and a group of friends (b)………………………

MALATI MATHUR : On my own? Oh … that would be quite exciting and

adventurous.

TREKKING GUIDE : However, there is a word of caution! Before you go

on the trek, make sure you have learnt all about the

route, the terrain, the placaes you are trekking

through and of course (c)

………………………........................................You.

MALATI MATHUR :

Essentials?(d)………………………………………..

....................................................................with me?

TREKKING GUIDE : Things like a water bottle, a compass, trekking gear,

a torch, spare batteries, packed food, a map of the

trek…Wait a minute. Here, take this printout of the

essentials you need to carry, since you are new to

trekking, I would advise you to take and experienced

trekker with you…..

MALATI MATHUR :

(e)……………………………………………………

……………………………………important?

TREKKING GUIDE : …..just so you get the hang of things. Is there

anything else that you need to know?

MALATI MATHUR : Well, what about

(f)……………………………………………………

………………………………………………………

………………………………..trekking experience?

TREKKING GUIDE : Good question! Ther are plenty of venues.

Himalayas, Ladakh, Sikkim and Gharwal regions

are great trekking country. And so are the Nilgiris

and Kodaikanal……

MALATI MATHUR : Thank you so much!

Writing (Bio-sketch)

Use the notes given below to write a short bio-sketch of Mihir Sen, an ace Indians long –distance swimmer.

MIHIR SEN

Birth : November 16, 1930(Purulia, West Bengal)

Death : June 11, 1997 (Kolkata, West Bengal)

Profession : Lawyer

Occupation : Swimmer

Achievements :

First Indian to swim the English Channel (1958) Swam across the Palk Strait between India and Sri Lanka First Asian to swim across the Strait of Gibraltar Swam across the length of Panama Canal in two stages First in the world to swim across the seven seas of the five

continents Entered the Guinness Book of World Records

Honours : Padma Shree (1959), Padma Bhushan (1967)

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Writing (Speech)

Suppose you are Poon Lim. Write a speech you have to deliver at the Royal Navy ―Meet the

Hero” programme to narrate the story of your survival.

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(4) He is indifferent………………..wealth.

(5) Milk is beneficial…………………health.

(6) The goat jumped………………….the river.

(7) Be courteous……………………….everybody.

(8) Many things are derived ……………..coal-tar.

(9) I was no match ……………………him at tennis.

(10) The forest was infested………………wild animals.

EXERCISE – 3

Fill in the blanks:

(a) The young man was angry……………….me for pointing ………….him that his

addiction…………..gambling would be the cause……………..his ruin.

(b) When my employer dispensed…………….my services. I disposed…………my

furniture, was reconciled……………….my fate and set…………… a grocer’s shop.

(c) A man ………..honour will stick…………..his conviction and act ………….. a

sense………………duty even if men jeer ……………….him and think him weak

………….. understanding and wanting…………..common sense.

(d) He went ………….board the steamer which was to take him ………….India,

where he intended to embark ………………..some kind…………….trade.

Exercise – 4

Fill in the blanks:

(a) (1) Do not play……………the sun; come………….the house.

(2) We must reach our destlinlation…………….sunset. We will start……….. forty

minutes ………….now.

(3) ……………….two children. He has to support a nephew.

(4) Come and sit ……………me.

(5) The regiment is stationed …………… Batala ……………the Punjab.

(6) A bitter hatred sprang up………… the two brothers.

(7) The reward was shared ……………the six boys.

(b) (1) He has been reading Gray’s Elegy…………….morning.

(2) Dickens worked………..morning…………..evening .

(3) I have not seen him…………………...a long time.

(4) I shall have completed my task………….tomorrow evening.

Exercise – 5

Complete the following sentences using suitable Prepositions;

(1) There is some doubt ………..the truth …………this statement.

(2) They were quarrelling …………..something …………..which. I was ignorant.

(3) I exchanged my horse………….a cow.

(4) Wagging the tail to show pleasure is a custom peculiar ……………..dogs.

(5) His work in class was worthy ……………….praise.

(6) My friend was indignant…………..his behaviour and also angry ………..me.

(7) He married his daughter…………..a rich man. I know him. …………….. sight

only. I have not been introduced …………… him.

(8) I am ………………….some obligation …………..him.

(9) Health is preferable ………………wealth.

(10) There are few men who are satisfied………………their lot.

(11) My brother objects……………my going out for an excursion. I have reasoned

……..him …………….the necessity ……………….having some recreation, but he is

not a man to surrender…………….arguments.

(12) I agree ………….our proposal as you have assured me …………….safety.

(13) Cowper had a passion………….books which increased ………….his increasing

years.

(14) He lives close ………….my house.

(16) More things are wrought………….prayer than this world dreams …………….

(17) Always be prepared……………the worst.

(18) I cannot easily compete ……………..a man who is superior …………me

……………intelligence.

(19) I have no respect…………a man who wastes his time, and who shows no regret

……………the loss …………….opportunities…………….doing good.

THE CONJUNCTION

27.1. Read the following sentences:

1. Three and two make five.

2. Ram went to school but abdul stayed at home.

3. We can read as well as write.

4. I am not strong though I am young.

In the above sentences the words in italics and, but, as well as, though-join together words(as in

1) or sentences(as in 2, 3, 4). These words in italics are called Conjunctions.

Definition: A Conjunction is a word or phrase which joins together words or sentences or

parts of sentences.

27.2. In the above sentences the conjunctions help to say things in a simple and short

way. Without the use of conjunctions, the above sentences may look like the following:

1. Three with two make five.

2. Ram went to school. Abdul stayed home.

3. We can read. We can write.

4. I am not strong. I am young.

27.3. Relative Pronouns (who, whose, whom, which, that), relative Adverbs (when, where,

why, how) and Prepositions (in, on, to, at, with)

Look at the words and phrases below. Rearrange them to form meaningful sentences.

Write the correct sentences in the space provided.

(1)

(a) down into/ a lake/went/ a

helicopter/once

……………………………………………

……………………………………….

(b) one passenger/his jacket life/

quickly/put on

……………………………………………

……………………………………….

(c) to jump/ the door /and prepared/he

opened

……………………………………………

……………………………………….

(d) was supposed/the pilot/to float/that

the plane/told him

……………………………………………

……………………………………….

(e) said that/ supposed to fly/ the

passenger/it was also

……………………………………………

……………………………………….

(2)

(a) is concerned/ a large proportion

/with animals/ of children’s books

……………………………………………

…………………………………..……….

(b) such themes/this/are timeless/is

because

……………………………………………

…..……………………………………….

(c) with all /have been /ago groups/

animal stories/a favourite

……………………………………………

……………………………………….

(d) animal stories/the young/very

humanised/like

……………………………………………

……………………………………….

(e) prefer / true/ older children/animal

stories/to life

……………………………………………

……………………………………….

(3)

(a) much/there is /weight loss/

surrounding/ nonsense

……………………………………………

……………………………………….

(b) balanced meals/is the only/and

exercise/healthy way/eating

………………………………………

…………………………………………….

(c) increase/eating more calories/leads

to/you burn/ in weight/than

……………………………………………

……………………………………….

(d) helps you/calories/exercise/to burn

……………………………………………

……………………………………….

(e) lose weighty/starve/you don’t/in

order to /have to

……………………………………………

……………………………………….

(4)

(a) has 19 articles/75 photographs and

pictures/and over / the Flag book

……………………………………………

……………………………………….

(b) at educational institution’/ flag code

/ a special chapter/ and the / on How to hoist

the flag’/it has

……………………………………………

……………………………………….

(c) to follow /when hoisting / the

etiquette rules/one has/it also contains/the

flag

……………………………………………

……………………………………….

(5)

(a) of the earth/by the year 2050,

/doubled/ the population/could have

……………………………………………

……………………………………….

(b) still be / there will/ for everyone

enough food

……………………………………………

……………………………………….

(c) will be a/place to live/healthy and

pleasant/the earth

……………………………………………

……………………………………….

(d) we need them / the air and the water

/ will last / our best, / as long as / of the

earth / if we do

……………………………………………

……………………………………….

(e) it is up to / the earth / to help /

everyone of us / save

……………………………………………

……………………………………….

(f) and the earth / to give ourselves /

let’s join hands / a future

……………………………………………

……………………………………….

(6)

(a) studied / N. W. America successfully

l/ a pioneer botanist / Thomas Nuttall, /the

flora of

……………………………………………

……………………………………….

(b) in the world/successful explorer/ he

was perhaps/however,/the least

……………………………………………

……………………………………….

(c) almost all / he permanently spent /

lost expeditions / on his /his time

……………………………………………

……………………………………….

(d) one night, / a search party l/ to return

/ was sent out / when he failed

……………………………………………

……………………………………….

(e) as the party / Indians / Nuttall

assumed /l approached him / they were

……………………………………………

……………………………………….

(f) over bush and river/ annoying / he

tried to escape / his rescuers

……………………………………………

……………………………………….

(g) into the camp / he wandered/

accidentally / after three days / finally,

……………………………………………

…………………………………