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SESSION: 2016-17 LANCER’S CONVENT

ROHINI, DELHI CLASS X

HOLIDAYS HOMEWORK

ENGLISH

1. READ THE GIVEN POEM CAREFULLY AND ANSWER THE QUESTIONS THAT FOLLOW.

SUMMER, PAST AND PRESENT

That summer, you told me stories

Inside a makeshift palace we made ourselves

Damp streets arranged over your old wooden bed

The loo’ picked up dust, leaves, every street sound

And scattered the noise on the window

Like a huge king’s army on the move

In your stories, princess braved every storm

Clouds were strange hoofed creatures in a hot sky

And summer left behind dry golden leaves in the balcony

This summer, the buzz of the air conditioner

Sleeps over everything, even your snores

For you don’t listen to my stories like I did yours

I chase errant flies, fan you in the time

The generators come on in welcome relief

Outside, another dry yellow summer stretches

drawn curtains have turned its roar into a mere hum,

we grew up every passing year, summer stayed the same

and left behind dry golden leaves in the balcony.

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1. Complete the lines given below (a) The makeshift palace refers to ……………………………………. (b) The cloth used by narrator was dampened to make the place ……………………………. (c) ……………………………. has/have been compared to an army. (d) The narrator’s grandmother told him stories about…………………………….. (e) We know that the narrator’s grandmother was not interested in his stories because

…………………………… (f) By mentioning the generators, the narrator wants to point to the …………………… (g) By saying that the summer has stayed the same the narrator wants to say

that……………………………

2. COMPREHENSION PASSAGE FROM CLASS 10 ENGLISH FULL MARK( TERM 1) Pg 51 , 52 ( the concept of sustainable development ). WRITING / GRAMMAR

3. Your career doesn’t end with your admission in engineering or a medical college. Write an article in 100- 120 words on “Choosing A Career”, highlighting new fields and avenues for the dedicated and hardworking young men and women.

4. Write a letter to the editor of your local newspaper expressing your concern at the fast disappearance of green belts and parks in your town. Suggest some remedial measures in this regard.

5. Using the hints given below, write a story titled “Great Expectation” in about 100 – 120 words. In England – an orphan boy Pip – one afternoon seized by the neck – by a fearful man – the fearful man with fetters in legs was a convict – Pip pleaded not to cut his throat – the convict could leave Pip if he brought food and a cutter – Pip went home and brought food and cutter – the convict freed himself from fetters – the convict boarded a ship for Australia – Pip grew up – dreamed to be a gentleman – a highly educated rich man – a man brought a message – the convict died but made Pip the inheritor of his vast property – the unknown benefactor was none other than the runaway convict whom Pip had supplied with a cutter and food years ago.

6. From CLASS10 ENGLISH FULL MARK (TERM 1) Pg 71 to 78---GRAMMAR WORKSHEETS.

LITERATURE

7. Give pen portraits of two brothers, Nicola and Jacopo highlighting their main traits and virtues in your own words. How does their selfless sacrifice and devotion to their cause give a new hope to humanity?

8. The narrator was highly impressed by the selfless struggle of Nicola and Jacopo for their existence. But what touched him most was their sense of self respect and their self devotion to their sister. He makes a diary entry in about 100 – 150 words.

9. Write the meanings of the following words and make sentences to make the meaning clear.

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1. Demeanour 5. Disguise 2. Willing 6. Penchant 3. Resistance 7. Applause 4. Intrude 8. Precision

10. Why did the frog get angry with the nightingale?

11. Frog claimed that he was the best trainer in the field of music. Discuss

12. How can a poor self image do irreparable damage to us and give a handle to our crafty rivals to beat us with? Elaborate this statement with reference to the nightingale in the poem.

13. Elucidate on the theme of the poem ‘Mirror’? 14. Select any book written in English in the year 2015 or 2016 and read it. Rewrite the climax of the

novel in your own words. Give a brief synopsis of the novel.

HINDI "B"

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Assignment-2 CHAPTER NAME: कबीर, याकरण

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MATHEMATICS SECTION-A

TOPIC-REAL NUMBERS

Q1.State whether x= 2.23 + is a rational or not.

Q2.Find the HCF of 300, 540, 890 by prime factorisation method.

Q3.Prove that 15n cannot end up with the digit 0 ,2 .

Q4.How rational numbers are different from irrational numbers? Give examples also.

Q5Explain why 5 x 11 x 17 + 17 is a composite number .

Q6. Prove that n2 – 1 is always divisible by 8 for some odd positive integer n.

Q7. Show that one and only one out of n, n+3, n+6 and n+9 is divisible by 4.

Q8. A merchant has 105L of oil of one kind and 140L of another and 175L of the third one. He wants to sell the oil by filling the 3 kinds of oils in containers of equal capacity. What should be the greatest capacity of such a container?

Q9. In a seminar the number of participants in hindi, English, maths are 60, 84, 108 respectively. Find the minimum number of participants to be seated and all of them of the same kind.

Q10. Find the largest number which exactly divides 280 and 1245 leaving remainders 4 and 3 respectively

Q11. The length, breadth and height of a room are 8m 25cm, 6m75cm and 4m, 50 cm respectively. Determine the length of the largest rod which can measure the three dimensions of the room exactly.

Q12. Show that the square of any odd positive integer is of the form 8m+1 for some integer m.

Q13. Prove that √7 is an irrational number.

Q14. Use Euclid's division algorithm to find the HCF of

(a) 4052 and 12576

(b) 27727 and 53124

Q15.Show that 5 -2√7is an irrational number.

Q16. Write whether 2√45+ 3√20/ 2√45on simplification gives a rational or an irrational number.

TOPIC-POLYNOMIALS

Q1.How many maximum zeroes will be the polynomial 3x3 + 6x2 – 7 can have?

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Q2. Find the zeroes of the polynomial 5x²+12x+7 by factorization method and verify the relation between zeroes and coefficients of the polynomial.

Q3. Obtain all the zeroes of the polynomial 2x4 +7x3– 19x2- 14x +30;if two of its zeroes are ±√2

Q4. Find the value of a and b so that 1, -2 are the zeroes of the polynomial x3 + 10x2 + ax +b

Q5. On dividing x4 – 5x +6 by a polynomial g(x), the quotient and remainder are –x2 – 2 and -5x +10 respectively. Find g(x).

Q6. What must be subtracted from 8x4 + 14x3 – 2x2 +7x – 8 so that the resulting polynomial is exactly divisible by 4x2 + 3x – 2?

Q7. What must be added to the polynomial p(x)= x4 + 2x3 – 2x2 +x -1 so that the resulting polynomial is exactly divisible by x2 + 2x – 3?

Q8. If the polynomial x4 - 6x3 + 16x2 - 26x +10 – a is divided by another polynomial x2 – 2x +k, the remainder comes out to be x+a. Find k and a.

Q9. If α and β are the zeroes of the polynomial x2 – 5x +6, find the value of α³+β³. Q10. What should be subtracted from the polynomial x2 – 7x +12 so that x= -4 is a zero of the polynomial?

Q11. Find the common zero of x2- 1, x4 -1 and (x+1)2

Q12. For what value of x, both the polynomials p(x)= x2 – x – 6 and q(x)= x2 +2x – 15 becomes zero?

Q13. One zero of the quadratic polynomial (a+9)x² +13x+6a is reciprocal of other, find the value of a

Q14. If α, β,γare zeroes of the polynomial p(x)=x³ -px²+qx-r, then find the value of 1/훼훽 +1/훽훾 + 1/훾훼.

Q15.If polynomial 6푥⁴ +8푥³+17x² +21x+7 is divided by another polynomial 3푥2 +4x+1, the remainder comes out to be (ax+b).Find a and b

Q16. GIven that zeroes of 푥3- 6푥2+ 3x + 10 are of the form a , a+b or a+2b for all real numbers a and b.FInd the values of a and b.

SECTION-B

M.C.Q. questions from the reference book P.K. Garg book .

EXERCISE 1 (A): Q1. – Q10.

EXERCISE 1 (B): Q1. – Q10.

EXERCISE 2 (A): Q1 – Q10.

EXERCISE 2 (B): Q1. – Q7.

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SECTION-C

Project Work ( On A-4 sheet)

Prepare a hand written project on one of the given topics:-

1) Maths Vs computer 2) Art with Maths 3) Evolution of Number system-Journey from counting numbers to Real numbers. 4) Geometry in real life 5) Maths and sports 6) The number 휋 7) Contribution of Indian mathematicians

Note: Revise the Maths Assignments given on the school website.

SCIENCE

1. Complete the practical files 2. BOOK REVIEW (on ruled punched sheets )

Suggestive Format of Book Review: (a) General: This section may include name of the book, author, publisher, price (b) Brief Introduction: It may focus on title of the book (interesting or not) purpose of the book, concept / sub concepts covered (c) Progression of the Chapters: It may highlight logical sequence, clarity of concepts, richness of contents and suitability of content. (d) Presentation: It may include language used, use of examples, data, co-relation with daily life situations, illustrations, coverage etc. (e) Printing: It may focus on quality of paper used, colors used, illustrations/ diagrams / photographs, font size and font type. (f) Overall Impression: This section may highlight whether the book provides

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enrichment and basic understanding of the topic , is inspirational in nature, an enjoyable experience, helps to get a scientific learning Few Suggested Science Popular Books: ● Inventions that made history – Publication Division, Govt. of India ● Science and Everyday life – Vigyan Prasar

● Artificial Intelligence – NISCAIR ● Seeing is not always believing – Vigyan Prasar ● Life: From cell to cell – NISCAIR ● Inventors who revolutionized our lives – National Book Trust ● The Human Machines – NBT ● You and your health – NBT ● Heart disease and the layman – NBT ● Kyon Aur Kaise – Vigyan Prasar (NBT)

3. Electricity Assignment (Physics) NUMERICALS

Q1. (a) How much current will an electric bulb draw from a 220 V source ,if the resistance of the bulb filament is 1200 ohm?

(b) How much current will an electric heater coil draw from a 220 V source, if the resistance of the heater coil is 100 ohm?

Q.2. The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw, if the potential difference is increased to 120 V?

Q.3. Resistance of a metal wire of length 1 m is 26 at 20° C. If the diameter of the wire is 0.3 mm, what will be the resistivity of the metal at that temperature?

Q.4. A 4 resistance wire is doubled on itself. Calculate the new resistance of the wire.

Q.5. Calculate the equivalent resistance in the combination shown in figure below:

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Q.6. A resistor of 6 ohm resistance is connected in series with another resistor of 4 ohm resistance. A potential difference of 20 volt is applied across the combination. Calculate the current through the circuit and the potential difference across the 6 ohm resistor.

Q.7. Two resistors are connected in series as shown in the diagram, (i) What is the current through the 5 ohm resistor? (ii) What is the current through R? (iii) What is the value of R? and (iv) What is the value of V?

Turn the electric circuit upside down

Q.8. Three resistors are connected as shown in the diagram. A current of 1 ampere flows through the 5 ohm resistor as shown in the diagram.

(i) What is the current through the other two resistors?

(ii) What is the potential difference across AB and AC?

(iii) What is the total resistance of the combination?

Turn the electric circuit upside down

Q.9. Calculate the equivalent resistance between the points A and B in the following combination.

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Q.10. When two resistors of resistances R1 and R2 are connected in parallel, the net resistance is 3 . When connected in series, its value is 16 Calculate the values of R1 and R2.

4. Lesson: LIFE PROCESSESS ( Biology )

Q. 1 While eating you are advised not to talk. Why are you advised so? (1) Q.2 We say that movement is a characteristic of living organisms but we always don’t see visible movements in plants. Comment. (1) Q. 3 Mucus is not used for churning the food or digesting it. Then why is it secreted in the stomach? (2) Q. 4 In the process of Photosynthesis food A is prepared which gets converted into food B. What are A and B? Why is A converted to B? (2) Q. 5 When we are asleep we are not performing any activity still our life processes are going on. Why? (2) Q. 6 Leaves of a healthy potted plant were coated with petroleum jelly. How will it affect the plant? Also state two reasons. (2) Q7. During photosynthesis which molecule splita to release oxgygen ?Also state its impotance? (2) Multiple Choice Questions 1. Which of the following statements about the autotrophs is correct? a. They synthesize carbohydrates from CO2 and H2O in the presence of sunlight and chlorophyll. b. They store carbohydrates in the form of starch. c. They convert CO2 and H2O into carbohydrates in the absence of sunlight. d. They constitute the first trophic level in food chains. 2.Select the correct statement a. Heterotrophs do not synthesize their own food b. Heterotrophs utilize solar energy for photosynthesis c. Heterotrophs synthesize their own food

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d. Heterotrophs are capable of converting CO2 and H2O into carbohydrates 3. Which is the correct sequence of parts in human alimentary canal? a. Mouth --> stomach -- > small intestine -- >oesophagus -- > large intestine b. Mouth -- > oesophagus -- >stomach -- > large intestine -- > small intestine c. Mouth -- > stomach-- > oesophagus-- > small intestine -- >large intestine d. Mouth -- >oesophagus -- >stomach -- > small intestine -- > large intestine 4. If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected? a. Proteins breaking down into amino acids b. Starch breaking down into sugars c. Fats breaking down into fatty acids and glycerol d. Absorption of vitamins 5. The inner lining of stomach is protected by one of the following from hydrochoric acid. Choose the correct one – a. Pepsin b. mucus c. Salivary amylase d. bile 6. Which part of alimentary canal receives bile from the liver? a. Stomach b. Small intestine c. Large intestine d. Oesophagus 7. A few drops of iodine solution were added to rice water. The solution turned blue black. This indicates the rice water contains a. Complex proteins b. Simple proteins c. fats d. starch 8. In which part of the alimentary canal food is finally digested? a. Stomach b. Mouth cavity c. Large intestine d. Small intestine 9. Choose the function of pancreatic juice from the following a. Trypsin digests proteins and lipase carbohydrates b. Trypsin digests emulsified fats and lipase proteins c. Trypsin and lipase digest fats d. Trypsin digests proteins and lipase emulsified fats 10. What is respiration? Where does it takes place? (2) 11. Differentiate between Aerobic and Anaerobic repiration. (2) HOTS Q-1. Eating junk food results in several health problems including obesity and heart problems. Still lot of children prefer to eat junk food. What suggestion you will give to avoid eating junk food.

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Q-2. Rahul wants to build up his body very quickly without following right exercise regime and balanced diet. Instead he started eating readymade food supplement. i). In your opinion was the step taken by Rahul is right. Justify your answer. ii). What are the harmful effects of taking artificial health supplement without consulting a physician. -- -- -- -- -- -- -- --- -- -- -- -- -- -- -- -- -- -- -- -x- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

5. CHEMISTRY

Chemistry

1. Write a balanced chemical equation to represent the following reaction : Iron reacts with steam to form iron ( II , III ) oxide and hydrogen gas. Methane burns in oxygen to form carbon dioxide and water. Magnesium reacts with nitrogen upon heating to form magnesium nitride.

2. Identify the substance being reduced , oxidized , oxidizing agent , reducing agent: 푀푛푂 + 4퐻퐶푙 → 푀푛퐶푙 + 2퐻 푂 + 퐶푙 퐶푢푂 + 퐻 → 퐶푢 + 퐻 푂 푍푛 + 퐶푢푆푂 → 푍푛푆푂 + 퐶푢

3. Why is respiration considered an exothermic reaction? 4. What is the difference between displacement and double displacement reactions? Write

equations for these. 5. In the refining of silver , the recovery of silver from silver nitrate solution involved

displacement by copper metal. Write chemical equation involved. 6. What do you mean by precipitation reaction? Explain giving examples. 7. What change in colour is observed when white silver chloride is left exposed to sunlight?

State the type of chemical reaction in this change. 8. Balance the following chemical equations:

퐴푙 + 퐶푢퐶푙 → 퐴푙퐶푙 + 퐶푢 푀푛푂 + 퐴푙 → 푀푛 + 퐴푙 푂 푃푏(푁푂 ) + 퐾퐼 → 푃푏퐼 + 퐾푁푂

9. (a) Why is combustion reaction an oxidation reaction? (b) How will you test whether the gas evolved in a reaction is hydrogen? (c) Why does not silver evolve hydrogen on reacting with dilute sulphuric acid?

10. Aluminium is a reactive metal but is still used for packing food articles. Why? 11. Which type of reactions are represented by the following equations:

푁퐻 푁푂 → 푁 + 2퐻 푂 푀푔 + 퐶푢푆푂 → 푀푔푆푂 + 퐶푢

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12. A, B and C are three elements which undergo chemical reactions according to following equations: 퐴 푂 + 2퐵 → 퐵 푂 + 2퐴 3퐶푆푂 + 2퐵 → 퐵 (푆푂 ) + 3퐶 3퐶푂 + 2퐴 → 퐴 푂 + 3퐶 Answer the following questions : (a) which element is the most reactive ? (b) which element is the least reactive?

ECONOMICS

Revise the syllabus covered so far Prepare a question bank with answers from chapters I and 2 (at least 15 from each) in

notebooks. ACTIVITY- Collect data on National income and per capita income of any 5 developed

countries and 5 developing countries and analyse the causes behind huge disparities among different countries. Present this data through histograms in notebooks.

Complete the assignment of Ch-1 in your economics notebook.

HISTORY

ADVERTISEMENT ACTIVITY ON MAN-MADE TO MACHINING ACTIVITY- Given below are some of the great inventions that took place in 18th century which brought in Industrial Revolution in England-

a. John Kay's " flying shuttle " b. James Hargreaves "spinning jenny" c. Richard Arkwright's "water frame" d. James Watt's " steam engine " e. Robert Fulton's " steamboat" f. Eli Whitney's " cotton gin"

1. Create an ADVERTISEMENT for any ONE invention as given above,as it would have appeared in print publication at the time of its creation.

2. Students are supposed to do this activity on A-4 size sheet. 3. Advertisements need to be provided with a suitable 'tagline' and also mention the

major use and feature of the particular invention chosen. 4. Complete the assignment of Ch- The age of Industrialisation in your History

notebooks.

GEOGRAPHY

1)Revise the chapters covered so far.

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2)Practice map work of ch-1 and paste the maps in geography notebook. 3)Prepare Ch-4(Agriculture)for class presentation. Guidelines for class presentation: a)Select any one topic from the sub-topics given below-

Importance of Agriculture sector in India Types of Agriculture-Intensive,Plantation,Subsistence,Shifting,Extensive and

Commercial Fibre Crops-Cotton/Jute/Silk Food Crops-Rice/Wheat/Pulses Oilseeds Beverage Crops-Tea/Coffee Horticulture Crops Contribution of Agriculture in GDP Problems faced by the farmers in India Role of government towards improving the agriculture in India

b)Each student will be given 2-3 mins to discuss the topic selected by them. c)During the presentation aids like pla-cards,charts,collage etc. can be used to enhance better understanding and effective presentation. 4)Disaster management-Report Writing Topic-‘Role of agencies (Govt and Non-Govt) which play a crucial role in preparing the society(pre,during,post disasters) Guidelines for Report Writing: a)On an A4 Size ruled sheet prepare Report Writing. b)Select a recent case study where society/community played an important role to tackle the disaster. c)Informative,pictorial and hand-written. d)Information should be appropriate as per the topic allotted.

POLITICAL SCIENCE 1) Revise and learn ch-1 POWER SHARING. 2) Complete the assignment of Ch-1 in your Political Science notebooks. 3) Enlist the names of various countries under various continents and write it in your

Political Science notebook 4) Read newspaper daily and paste any 10 related newspaper clipping as per SA1 chapters.

ART

1) Make any usable thing with Plastic/ Pepsi bottles. 2) Madhubani painting-Pg: 76. using poster colors. Do it in art files.

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3) Design an invitation card for Annual Day using any computer software. Paste the colored printout in art file.

MUSIC Make the projects on A4 coloured sheet and decorate it accordingly

DANCE: Significance of Natraj( Girls) Dance therapy (Boys) INSTRUMENTAL: Life history of a great musician of your own instrumental. VOCAL:Biography of any Classical Living Legend

PHYSICAL EDUCATION

CLASS 9 : - PROJECT TOPIC –WARM UP AND COOL DOWN

a) Importance of warm up and cool down b) Effects of warm up & cool down on performance

CLASS 10 : -PROJECT TOPIC – BMI ( Body mass index )

a) How to check your BMI ?

Note:Last date for submission - 10th July. 2016

# ON A-4 SIZE SHEET