Holiday Homework

Class -IX

2019-20

Q.1 you happened to overhear the following conversation:

Rahul: Where have you planned to go during the summer

holidays?

Jevaan: I wish I could go and enjoy boating on the Dal lake.

Rahul: Is it safe to go to Kashmir now? Don’t you hear a lot about terrorism in the newspapers?

On hearing this dialogue you decide to write an article for a

local daily on the need to provide security at tourist spots and

suggest ways and means by which spots could be made more

attractive to tourists. Using ideas from the unit on ‘Travel and Tourism’ along with your own ideas write the article.

Q.2 Develop a story taking help of the outline given below.

Outline : a crowded place..... a young man shouting.... I have

the most beautiful heart ...... an old man challenged the young

man.....old man’s heart was not in shape.... the heart was in pieces ......he said “I shared love and got heart in pieces.”.......the young man realized his folly ..... .

Q.3 Read the novel ‘Wuthering Heights ‘by Emily Bronte and writ a paragraph on your favourite character on an A-4 Sheet.

Q.4 Read the newspaper every day. Find 10 difficult words,

write their dictionary meaning. Also write their synonyms and

antonyms.

NOTE: Prepare a folder for the holiday homework and decorate

it beautifully.

HAPPY HOLIDAYS!

कक्षा : नवीं. िवषय : िहंदी. ग्रीष्मकालीन अवकाश हतेु गृहकायर्. • प्रथम आविधक परीक्षा हतेु िनधार्िरत पाठ्यक्रम की पयार्प्त पुनरावृित्त एवं िलिखत अभ्यास करें।

• अवकाश पूवर् कराए गए कायर् को छात्र सािहत्य एवं व्याकरण उत्तरपुिस्तकाओ ंमें पूरा करें।(यिद

कायर् अधूरा या अपूणर् ह।ै)

• नैितक मूल्यों से प्रेिरत िहंदी की रोचक कहािनया ँपढ़ें।

• स्वास्थ्य के प्रित सजग रहत ेहुए प्रितिदन पंद्रह-बीस िमनट का शारीिरक व्यायाम/ कसरत करें

अथवा शारीिरक व्यायामवाला(अपनी पसंद का)कोई खेल खेलें।

• अपने माता-िपता एवं बड़ों का कहना(आज्ञापालन) मानें। • जीवन के प्रित अपनी सोच सकारात्मक(अच्छी सोच) रखें।

• पूरक पुस्तक (संचयन) के पाठ १ एवं २ का अध्ययन करें। • ए-4 साइज़ की शीट पर एक मौिलक/स्वरिचत लेख या कहानी या किवता या संस्मरण िलखें।

• अपने िमत्र/ सहलेी या िकसी अन्य िरश्तेदार को (िकसी भी िवषय पर)व्यावहािरक रूप में एक पत्र िलखें।

• अपनी छुिट्टयों का भरपूर आनंद उठाते हुए समय का सदुपयोग करें।

IX MATHS

HOLIDAYS

HOMEWORK 1 Revise syllabus for PT-1

P.T.1 Syllabus

.CH-1 Number system

.CH-2 Polynomials

SOLVE THE GIVEN ASSIGNMENT IN SEPRATE NOTEBOOK / SHEET

WORKSHEET: HOLIDAY HOMEWORK – CLASS IX Number system

Q1Represent on the no. line :

i. √3 ii. √5

iii. √17 iv. √9.4

Q2 Express each of the following decimals in the form 𝒑𝒒

i. 21.75

ii. 0.621

iii. 4.32

iv. 2.0025

v. 0.123

vi. 15.712

Q3 Rationalise the denominater:

i. 𝟑+√𝟐𝟑−√𝟐 ii.𝟒√𝟑+𝟓√𝟐√𝟒𝟖+√𝟏𝟖

Q4Find rational nos. a/b such that:

i. √𝟏𝟏−√𝟏𝟕√𝟏𝟏+√𝟕 =a-b√77

ii. 𝟒+𝟑√𝟓=𝒂+𝒃√𝟓𝟒−𝟑√𝟓

iii. √𝟓+√𝟑=𝒂+𝒃√𝟏𝟓√𝟓−√𝟑

Q5

i. IF X=3-2√2, FIND X2+ 𝟏𝒙𝟐 ii. IF X=

√𝟑+√𝟐√𝟑−√𝟐 AND Y=√𝟑−√𝟐√𝟑+√𝟐, FIND X2+Y2 Q6 PROVE THAT 𝟏𝟐+√𝟑 + 𝟐√𝟓−√𝟑 + 𝟏𝟐−√𝟓 =0 Q7 SIMPLIFY THE FOLLOWING SURDS:

i. √63+√28-√175+√162-√32 ii. 2√18-3√48-3√98+5√27+6√72

iii. 8√45-6√20+√245-3√125

Q8 SIMPLIFY

i. (𝟐𝟒𝟑)−𝟒 𝟓⁄𝟑𝟐

ii. (𝟖𝟏𝟏𝟔)-𝟑 𝟒⁄ ×[(𝟐𝟓𝟗 )-𝟑 𝟐⁄ ÷(𝟓𝟐)-𝟑 𝟏⁄ ]

iii. (√𝟐𝟓)𝟖 𝟏⁄ )÷(√𝟐𝟓)𝟏𝟑 𝟏⁄ iv. 5√(32)−𝟑 𝟏⁄

Q9 FIND X

i. 27X=

𝟗𝟑𝑿 ii. 2

5X÷ 2X =5√220

Q10 Simplify

(3√𝟓- 2√𝟑) (3√𝟓+2√𝟑) (√𝟐+1) (√𝟐+3 𝟐+√𝟑𝟐−√𝟑 + 𝟐−√𝟑𝟐+√𝟑 Q11 Simplify √𝟔√𝟐+√𝟑 + 𝟑√𝟐√𝟔+√𝟑 - 𝟒√𝟑√𝟔+√𝟑 Q12 Express 2.36 + 0.23 as a fraction in simplest form

Q13 Find the two rational and two irrational numbers

between 𝟐𝟓 and 𝟑𝟒 ii 0.2 and 0.23 Q14 Visualize 2.665 on a number line, using successive

magnification

Q15 Rationalize the denominator of 𝟏√𝟕+√𝟔−√𝟏𝟑

AIR FORCE BAL BHARATI SCHOOL

(Holiday Homework)

WORKSHEET-Polynomials

CLASS-IX

Q-1 Find the quotient and remainder when:-

=> x3-9x

2+17x-4 is divided by (x-2)

Q-2 Using remainder theorem, find the remainder when f(x) is

divided by g(x) and verify the result by actual division

=> f (x) = x3+4x

2-3x+10, g(x) = x+4

Q-3 If x= −12 is a zero of polynomial p(x) =8x3-a-x+2, find the value

of a

Q-4 Factorise the following:-

1. (x+y)+(x+y)2

2. 16q-−1𝑐2

3. 3x3y-243xy

3

4. X4-81

5. 2a5-32d

6. 1-2ab-(a2+b

2)

7. X2-4x-4y-y

2

8. 25x2-10x-1-36y

2

9. X2+2xy+y

2-a

2+2ab-b

2

10. 5x2-16x-21

Q-5 Find the value of:-

X3-8y3-36xy-216, when x=2y+6

Q-6 If both x+1 and x-1 are factors of a x3+x

2-2x+b find the value

of a and b

Q-7 If x+1𝑥 =3, calculate x2+ 1𝑥2, x3+ 1𝑥3 and x4+ 1𝑥4

Q-8 If a+b=10 and ab=16, find the value of a2-ab+b

2 and a

2+ab+b

2

Q-9 Find the value of 27x3+8y

3, if 3x+2y=14 and xy=8

Q-10 Foctorise

1. 4(x-y)2-12(x-y)(x+y)+9(x+y)

2

2. X3-12x(x-4)-64

3. (a+b)3-(a-b)

3

4. (x+y)3-(x-y)

3-6y(x

2-y

2)

5. (a2-b

2)

3+(b

2-c

2)+(c

2-a

2)

3

Q-11 Simplify (𝑎2 − 𝑏2) + (𝑏2 − 𝑐2) + (𝑐2 − 𝑎2)3(𝑎 − 𝑏)3 + (𝑏 − 𝑐)3 + (𝑐 − 𝑎)3

AIR FORCE BAL BHARATI SCHOOL:LODI ROAD: NEW DELHI

HOLIDAY HOME WORK

The Fundamental Unit of Life

Q.1 a) Segments of DNA are known as _____________________

b) Ribosomes are the site of __________________________

c) Colourless plastids are known as ____________________

Q.2 Draw a neat labelled diagram of a Plant cell and Animal cell.

Q.3 Differentiate between (two differences)

a ) Prokaryotic and Eukaryotic cell

b ) Osmosis and Diffusion

c ) Unicellular and Multicellular Organisms

d ) Protoplasm and Cytoplasm

e ) Mitosis and Meiosis

Q.4 Give two differences and two similarities between Mitochondria and

Chloroplast.

Q.5 Why is plasma membrane called a selectively permeable membrane?

Explain

Q. 6 Define the following

a ) Endocytosis

b ) Plasmolysis

c ) Hypotonic Solution

Q.7 Give reason:

a ) Mitochondria is known as the “Power house of a cell”. b ) Lysosome is known as the “suicidal bag of the cell ”.

AIR FORCE BAL BHARATI SCHOOL: LODI ROAD: NEW DELHI -110003

HOLIDAY HOME WORK

CLASS- IX

Collect different types of seeds such as rice, wheat and oil seeds.

Classify them as cereals, pulses, spices, oil seeds and paste in a folder.

Identify their sowing, harvesting & seasons Paste pictures of their plants.

OR

Collect & Paste picture of at least 5 unicellular organisms and 5 multicellular

organism. Give their

a) Habitat

b) Feeding Habit

c) Shape / Size

d) Any interesting feature

Chemistry Holidays homework

Class-9

2019-2020

1. Complete the Worksheet of Ch-1 Matter in our

surroundings in your homework notebook.

2. Write and learn table 3.1 and 3.6 in your homework

notebook.

3. Read Ch-14, Natural Resources.

Holiday Homework (2019-20) Class: IX Subject: Social Science

I

II Prepare a project file with following details: 1. The total length of the project report should not be more than 15 written pages of foolscap

size (A-4 size) sheet.

(a) Cover page showing project title, student information, school and year.

(b) Certificate page (c) Acknowledgements (acknowledging the institution, offices and libraries

visited and persons who have helped).

(d) Chapters with relevant headings .(e) Summary and conclusions based on findings.

g) Bibliography: should have the Title, author, publisher and if a website the name of

the website with the specific website link which has been used

. Highlight your topics with the suitable case studies

MARKS DISTRIBUTION Total Marks for project - 20

Total Marks will be allocated over the different aspects: Content accuracy and originality ,

Presentation and creativity , Process of Project Completion : Initiative, cooperativeness,

participation and punctuality

1. Mitigation strategy for natural disasters like floods, earthquakes, landslides and

Cyclones. (For roll nos. 1-25)

2. Mitigation strategy for human induced disasters like nuclear accidents, chemical and

industrial accidents and biological disasters.(For roll nos. 26 onwards)

III On the outline map of India show the following on different maps:-

1. Important peaks and Mt. ranges (Pg. 9, 10) 2. Important rivers and Lakes (Pg.19)

3. Wildlife Sanctuary, Bird Sanctuary, National Parks (Pg. 49).

1

Subject: Computer Applications

Class IX (2019-20)

Holiday Homework

1. Make a PowerPoint presentation on any one of the

following topics:

Trends in wireless computing Latest Computer Gadgets (at least 4) and their

uses

Cyber Safety

Note: Make at least 10 slides and insert required

pictures/audio/video.

Apply transition and custom animation.

2. Design the following in MS-Word and submit the

printouts:

Cover page of any story given in your English/Hindi Text book.

Greeting card of your favorite season or festival. Table showing functions of MS-Excel

software(P.327 of the book)

SUMMER HOLIDAYS HOMEWORK 2019-20

CLASS - 9

SUBJECT- FRENCH

Faites une fiche pédagogique. Ou

Faites deux feuilles utilisant deux sujets de la grammaire.

Apprenez et faites les exercices de la cultre dans le cahier d’exercice jusqu’à leçon 3.

HAPPY HOLIDAYS!