CLASS X

ENGLISH 1. Read the following novels and write critical analysis of any one on a ruled sheet placed in a folder. Discussions will be held on all the novels in the class. a) Inferno (Dan Brown)

b) The Scratchling Trinity( Boyd Brent and Rebecca Keys)

c) The Alchemist (Paulo Coehlo)

d) The Secrets of Greystone Manor( Alan Shubrook)

2. Complete the following units in the workbook itself: a) Reported speech c) Tenses

b) Subject Verb Agreement

3. Read the novel ‘The Story of My Life’ and answer the following questions on ruled sheets in 150-200 words. a) What role did Miss Anne Sullivan play in Helen’s life?

b) Before Anne Sullivan arrived, what strategies were used by Helen’s family members in

order to communicate with her?

c) How did the first Christmas event prove out to be a great event? Which remarkable gift

was received by Helen on this day and what happened to it?

d) Describe Helen’s feelings when she reached Perkins Institute for the blind.

e) Describe Helen’s trip to Baltimore. How was her journey to Boston different from this

trip?

f) How did Helen learn that nature is not always kind? What made her come out of her fear

of climbing trees?

g) What was the controversy relating to the Frost king? Describe the cross questioning and

investigation that Helen was subjected to. Why was her teacher sent away?

h) Describe the passionate outburst of Helen when she was handed a ragged doll by her Aunt

and a new doll by her teacher.

i) Write a brief character sketch of Michael Anagnos.

j) Write a brief character sketch of Alexander Graham Bell.

4. Based on the following units of MCB complete these exercises in the book itself:- a) Health and Medicine - A3, A5, A7, A8, A9, A10, B5, C3,D1, D3, D6, E2, E3

b) Education –A2, A3, A4, B3, C3, C8, C9, D4,

5. Complete the following questions on ruled sheets in 100-120 words:- a) Atomic energy has revolutionized life. It has developed and improved the quality of life in various spheres such as health, environment, agriculture etc. Write a letter to the Editor of The Times of India in about 120 words about the improvements due to science and technology. You are Raman/ Ritika of Mayur Vihar, Delhi. b) While shopping at a popular fashionable market you were distressed to see the harassment faced by some foreigners at the hands of the self proclaimed guides, greedy shopkeepers, vendors and even beggars. Write a letter to the Editor, The Indian Express, mentioning that we have forgotten our culture of hospitality and are responsible for spoiling the image of our country. You are Abhinav Prakash of 3480, Lajpat Nagar, New Delhi. c) You have noticed many stray animals on the road during the busy hours of the day. These animals have caused traffic jams as well as accidents. You have already written to the concerned authorities but no action has been taken so far. So write a letter to the Editor of The Hindustan Times’ telling him about the nuisance created by stray animals. You are Anuj/ Anamika. d) You are Parul/ Pradeep of New Model Public School. You are interested in doing a language course during summer vacation. Write a letter to the Director of institution enquiring about the duration of the course and the terms and the conditions for admission. e) You are Nalini/ Vishal hostel warden , Zenith Public school, Rohtak. Write a letter to the sales manager Bharat electronics and appliances limited New Delhi, placing an order for a few fans , microwave ,ovens, geysers and computers that you wish to purchase for the hostel. 6. Write a story on the following in about 200-250 words:- a) Science Fiction

b) Friendship and relationship

7. Write two self composed poems on ruled sheets.

NOTE: Do all the above mentioned questions on ruled sheets and place them in a transparent folder.

HINDI

¼1½ Me ‘n’Mine - अपठत गदया

(2) ाकरण परचय – पषठ साखय -129-135 (पाठाधारत महावर याद करो)

- पषठ साखय -23 स 30 , समास- पषठ साखय -62 स

64, महावर - पषठ साखय -72 स 74

¼3½ वयाकरण प िायण मणणवय नणतयकणािए-

• ‘गगोी’ बोतल-बद पानी क िलए • स-ली कराट अकादमी क लए

• कराए पर मकान दन हत • बाल-िवापीठ म गरीब ब को िन:शलक िशशा हत

ससकक त * ीषमावकाश म ििस पययटनसनल पर पप आमन गय न , अपन िम को वहा क बार म बतात ए ससकक त म एक अनचद िलिलए | * मतप तयय का योग करत ए (ी. , प. व नप.) तीन लग म तीस वाकय बनाए | (सभी चा क वाकय सविनिमयत होन चािहए ) *पाठ एक स लकर पाच तक धयानपवयक प व वसम स ततप समास शशद क तािलका अनय सिहत बनाओ| * सवयनाम शशद दप व कम शशद दप तीन िलग म अनयसिहत िलिलए ए ( तत , इदम , असमद , यषमद , एतत ) * पाठ एक स लकर पाच तक धयानपवयक प कर ,वसम स कठन शशद क तािलका बनाओ तना वनका अनय िानन क कोिशश कर |

MATHEMATICS 1. For two positive number a and b , then exists two unique numbers q and r such that :

(a)a=bq+r, r>0 (b)a=bq+r;0<r>b (c) a=bq+r, 0≤r<b (d) a=bq+r,0< r < b 2 . (i) Write the conditions to be satisfied by q so that a rational number p/q a non terminating repeating decimal expansion. (ii) Find the value of k for which the system of equations x - ky = 2 and

3x + 2y = -5 has a unique solution. 3.The graphical representation of the pair of equations x+2y-4+0 and 2x+4y-12=0represents. (a)Intersecting lines (b) Parallel lines (c) Coincident lines (d) All of the above

4. If one of the zero of the polynomial 5x2+13x+a is reciprocal of the other then find value of a.

5. Write the number of real roots of the equation (x -1)2 + (x - 2)2 + (x)2.

6. If (x+a) is a factor of 2x2+2ax+5x+10, then find the value of a

7. Which of the following will have a terminating decimal expansion: (a) 125/441 . (b). 35/50. (c) 77/210 (d) 129/2257'717

8. Find the largest number that will divide 398, 436 and 542 leaving remainders 7, 11 and 15 resp. 9. Find the smallest number which when increased by17 is exactly divisible by both 520 and 468. 10. Find the Zeroes of the polynomial f(x) = 4√3x2+5x-2√3, and verify the relationship between zeroes and its coefficient. 11. Find the values of a and b for which the equations has infinite solution. 2x-3y = 7; (a+b) x - (a+b-3)y = 4a+b 12.For what value of a and p the given system of equation has infinite solutions (2p-10) x -3y-5 = 0 3x+ (q-2) y – 3 = 0 13. Find the value of k for which the system of linear equation 2x+5y = 3 and (k+1)x +2(k+2)y = 2k will have infinite solution.

14. Find the values of a and b, if the sum and the product of the roots of the equation 4ax2+4bx+3=0 are 1/2 and 3/16 respectively. 15. Solve the following pair of linear equation by substitution method . 7x+11y=3 8x+y=15 16.Solve the following pair of linear equations: 7𝑥−2𝑦

𝑥𝑦= 5, 8𝑥+7𝑦

𝑥𝑦 = 15

17.Solve the following pair of linear equation 4𝑥+ 5y = 7, 3

𝑥+ 4y = 5

18. Solve the following pair of equation. 5

𝑥+𝑦− 2

𝑥−𝑦 = -1

15 𝑥+𝑦

+ 7𝑥−𝑦

= 10 , where x+y & x-y ≠0

19. A person can row a boat at the rate of 5 km/hr in still water. He takes thrice as much

time in going 40 km upstream as in going 40 km downstream. Find the speed of the

stream.

20. One pipe can fill a tank in (x-2) hours and the other pipe can empty the full tank in (x+2)

hours. If the tank is empty and both the pipes are opened together, the tank is filled

completely in 24. hours. Find how much time will the second pipe take to empty the

tank?

21. Prove that √17 is irrational.

22. Use Euclid's division Lemma to show that the cube of any positive integer is either of the

form 9m,9m+1 or 9m+8 for some integer m.

23. The denominator of a fraction is 4 more than twice the numerator. When both the

numerator and denominator are decreased by 6, then the denominator becomes 12

times the numerator.

24.If a and b are the zeroes of the quadratic polynomial f(x)= x2+px+q, form a polynomial

whose zeroes are (a+b)2 and (a-b)2

25. If a and b are the zeroes of the quadratic polynomial f(x)= 3x2-4x+1, form a polynomial

whose zeroes are a2/b and b2/a.

26. Solve the following system of equations graphically : 2x - y =1 and x + 2y = 13

Also determine the ordered pairs where the line cut the x axis. Hence determine the area

of a triangular region so formed by these lines with y axis.

27. Find the zeroes of the polynomial p(x) = 2x4 + 7x3 -19x2 -14x +30 if two of its zeroes are

√2 and-√2.

28. If d is the HCF of 468 and 222, find x and y satisfying d = 468x + 222y. Also show that

x and y are not unique.

29. Find the zeroes of the polynomial f(x) = x3 -5x2 - 2x + 24 , if it is given that the product of its

two zeroes is 12.

30. Find the values of a and b so that x4 + x3 + 8x2 + ax + b is divisible by x2 + 1.

31. The sum of a two digit number and the number formed by interchanging the digits is 132.

If 12 is added to the number, the new number becomes 5 times the sum of the digits.

Find the number.

32. A and B. are friends and their ages differ by 2 years. A's father D is twice as old as A and

B is twice as old as his sister C. The age of C and D differ by 40 years. Find the ages of A

and B.

33. If a motorboat can travel 30 km upstream and 28 km downstream in 7 hours, it can travel 21

km upstream and returns in 5 hours. Find the speed of the boat in the still water and speed of

the stream.

34. After covering a distance of 30 km with a uniform speed there is some defect in a train

engine and therefor , its speed is reduced to 4/5 of its original speed Consequently, the train

reaches its destination late by 45 minutes. Had it happened after covering 18 km more, the

train would have reached 9 minutes earlier. Find the speed of the train and the distance of

journey.

35. The students of a class are made to stand in rows. If 3 students are extra in a row, there

would be 1 row less. If 3 students are less in a row there would be 2 rows more. Find

the number of students in the class.

36. If 𝛼 and 𝛽 are the zeroes of the polynomial a𝑥2 + bx + c, then find the value of:

(a) 𝛼2

𝛽 + 𝛽

2 𝛼2

(b) √( 𝛼 𝛽

)+√( 𝛽 𝛼

) (c) 𝛼4 + 𝛽4.

37. If 𝛼 and 𝛽 are the zeroes of the polynomial 2𝑥2 - 4x + 1, then find the value of 1

𝛼 + 2 𝛽 +

1𝛽+ 2 𝛼

.

38. Solve the following pair of equations of reducing them into a pair of linear equations.

i. 5𝑥

+ 6𝑦 = 13, 3𝑥

+ 4𝑦 = 7

ii. 𝑥 + 6𝑦

= 6,3𝑥 − 8𝑦=5

iii. 4𝑥 + 6𝑦 + 3𝑥𝑦, 8𝑥 + 9𝑦 = 5𝑥𝑦

iv. 2𝑥

+ 3𝑦

= 9𝑥𝑦

, 4𝑥

+ 9𝑦

= 21𝑥𝑦

, 𝑥 ≠ 0,𝑦 ≠ 0

v. 3𝑦−𝑥𝑥𝑦

= −9, 2𝑦+3𝑥𝑥𝑦

= 5, 𝑥𝑦 ≠ 0

vi. 5𝑥+1

− 2𝑦−1

= 12

, 10𝑥+1

+ 2𝑦−1

= 52

, 𝑥 ≠ −1,𝑦 ≠ 1

vii. 6𝑥+𝑦

= 7𝑥−𝑦

+ 3, 12(𝑥+𝑦) = 1

3(𝑥−𝑦) , 𝑥 + 𝑦 ≠ 0, 𝑥 − 𝑦 ≠ 0.

39. A man travels 600 km partly by train and partly by car. It takes 8h 40min, if he travels 320km by train and the rest by car. It would take 30 min more, if he travels 200 km by train and rest by car. Find the speed of train and car separately.

40. 8 men and 12 boys can finish a piece of work in 10 days, while 6 men and 8 boys can finish it in 14 days. Find the time taken to finish the work by 1 man alone.

41. Students were standing in a row for a mass drill, if one student is extra in a row, there would be two rows less. If 1 student is less in a row, there would be 3 rows more. Find the numbers of students.

42. It can take 12 hours to fill a swimming pool using 2 pipes. If the pipe of larger diameter is used for 4 hours and the pipe of smaller diameter is used for 9 hours, only half a pool can be filled. How long will it take for each pipe to fill the pool separately?

43. A train covered a certain distance at a uniform speed. If the train would have been 10 km/h faster, it would have taken 2 hours less than the scheduled time and if the train was slower by 10 km/h, it would have taken 3 hours more than the scheduled time. Find the distance covered by the train.

44. Solve the following equations for x and y.

7x+5y =74.

7x+1+ 5y+1 = 218

45. Determine algebraically , the vertices of the triangle formed by the lines

3x-y = 3, 2x-3y = 2 and x+2y = 8.

46. Find two consecutive positive integers , sum of whose squares is 365.

47. At t min. past 2 pm, the time needed by the minute hand of a clock to show 3 pm was found to

be 3 min. less than 𝑡2

4 min. Find t.

48. Find the quadratic equation if x = 5 + 5 + √5 + ⋯…∞ and x is a natural number.

49. Solve for x: 1𝑎+𝑏+𝑥

= 1𝑎 +1𝑏 + 1

𝑥 , where a, b, x, a+b+c ≠ 0

50. Find the roots of 5x+1 + 52-x = 53 +1 by factorisation method.

51. The speed of a boat in still water is 15 km/hr.It can go upstream and return downstream to

the original point in 4 h 30 min. Find the speed of the stream.

Note: 1. Solve objective sums of Ex. 1.1(1-10), Ex. 2.1(1-11), Ex. 2.2(1-2), Ex. 3.1(1-10)

Ex. 4.1(1-11), from NCERT Exemplar book in assignment register.

2.Prepare synopsis of any working / creative / nonworking model on Maths.

SCIENCE

CHEMISTRY

1. Give one example where corrosion is an advantage rather than disadvantage.

2. Write chemical name, formula and common name for any five chemicals used in our daily life.

3. A green salt on heating decomposes to produce a colourless suffocating gas and leaves behind a red brown residue. Name the salt and write the decomposition reaction.

4. What is the relation between oxidation and oxidizing agent in a redox reaction? Write two examples of redox reaction showing this relationship.

5 . Rewrite the following reaction by correcting and then balancing

(a) KClO3 KCl2 + O2

(b) Ca + O CaO

(c) CO2 + CaOH CaCO3 + H2O

HOTS

1. A compound `X` is used for drinking, has pH =7.Its acidified solution undergoes decomposition in presence of electricity to produce gases `Y` and `Z` The volume of Y is double than Z. Y is highly combustible whereas Z is supporter of combustion .Identify X, Y & Z and write the chemical reactions involved.

2. An aqueous solution of metal nitrate P reacts with sodium bromide solution to form yellow ppt of compound Q which is used in photography. Q on exposure to sunlight undergoes decomposition reaction to form metal present in P along with reddish brown gas. Identify P&Q . Write the chemical reaction & type of chemical reaction.

3. Bhawana took a pale green substance A in a test tube. and heated it over the flame of a burner. A brown colored residue B was formed along with evolution of two gases with burning smell of sulphur.Idetify A & B. Write the chemical reaction involved.

4. A student took 2-3 g of a substance X in a glass beaker & poured water over it slowly. He observed bubbles along with hissing noise. The beaker becomes quite hot. Identify X.What type of reaction is it?

5. A reddish brown vessel developed a green colored solid X when left open in air for a long time. When reacted with dil H2SO4 , it forms a blue colored solution along with brisk effervescence due to colourless & odourless gas Z. X decomposes to form black coloured oxide Y of a reddish brown metal along with gas Z, Identify X, Y, & Z.

6. A substance X used for coating iron articles is added to a blue solution of a reddish brown metal Y, the colour of the solution gets discharged Identify X and Y & also the type of reaction.

7. A student burnt a metal A found in the form of ribbon. The ribbon burnt with a dazzling flame & a white powder B is formed which is basic in nature. Identify A & B.Write the balanced chemical equation.

8. A student dropped few pieces of marble in dilute HCl contained in a test tube. The gas evolved was passed through lime water. What change would be observed in lime water? Write chemical reactions for both the changes observed.

9. Astha has been collecting silver coins and copper coins. One day she observed a black coating on silver coins and a green coating on copper coins. Which chemical phenomenon is responsible for these coatings? Write the chemical name of black and green coatings

10. A teacher took a hard glass tube open on both ends and placed some copper turnings/powder inside it. He heated the tube strongly for about 15-20 min. till the copper turnings/powder turned black. Now, he fitted corks with holes on both sides of the tubes. He prepared H2 gas by reaction of zinc with sulphuric acid and passed this gas over the black material; inside the tube.

a) Why has copper turned black? Write the reaction involved.

b) Name two different types of reactions to which this reaction belongs.

c) Identify oxidizing and reducing agents of this reaction.

Activity: (1) How can you perform an experiment to see that metals react with alkalies to liberate hydrogen gas?

(2). A student has mixed the solutions of lead (II) nitrate and potassium iodide.

(i) What was the colour of the precipitate formed? Can you name the compound precipitated?

(ii) Write the balanced chemical equation for this reaction.

(iii) What type of reaction is it?

PHYSICS

1. A wire is doubled over itself. What will be the new resistance if the original resistance is 10Ω?

2. How much energy is required to move a charge of 5C between two points having a potential

difference 10V?

3. Write the appliances used in your house under the heading of 5 A and 15 A current rating and

write them in your tabular form.

4. A current of 1.2 A is drawn from a cell for 2 minutes. Calculate the no. of electrons flows in the

circuit.

5. How three resistors 2 ohm, 3 ohm and 6 ohm be connected to get an overall resistance of a) 4 ohm

and b) 1 ohm?

6. Draw an electric circuit having a battery of 6v, two resistors 2 Ω & 3 Ω connected with a key & an

ammeter?

7. The potential difference across a resistor of resistance 6 Ω is 1.5 V. Calculate the current passing

through the resister.

8. Why does a conductor heat up , when current is flowing through it? Explain.

HOTS 9. Two bulbs A and B are rated 100W - 120V and 10W-120V respectively. They are connected

across a 120V source in series. Which will consume more energy?

10. Two conducting wires of same material and of equal length and equal diameter are first

connected in series and then in parallel in a circuit across the same potential difference. Calculate the

ratio of heat produced in series and parallel combination.

11. In the following graph, which one has the maximum value of resistance? Give reason also.

12. Two lamps one rated 100 W and at 220 V and other 60 W at 220 Volt are connected in parallel to an electric main supply. What current is drawn from the line, if the supply is 220 V?

13. Calculate the current and potential difference across each resistance shown in the figures:

BIOLOGY

1. I) Name the blood vessel that brings oxygenated blood to the human heart. II) Which chamber of the heart received oxygenated blood? III) Explain how is the oxygenated blood from this particular chamber sent to all the body parts? 2. Explain the schematic representation of gaseous exchange in tissues. 3. Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structures and functioning? 4. How is ‘respiration’ different from ‘breathing’? Explain the process of aerobic and anaerobic respiration. 5. What is the significance of emulsification of fats? 6. Why is the small intestine in herbivores larger than in carnivores? 7. What is the advantage if a four chambered heart? 8. Explain the process by which inhalation occurs during breathing in human beings? 9. How do plants get rid of their waste products? 10. How does amoeba dispose of its waste products? 11. How is breathing in whale different from shark? 12. Describe the mechanism of urine formation in humans. 13. Why is trachea lined with the rings of cartilage? 14. Describe the five step of holozoic nutrition? 15. Why is it advised to breathe thru nose?

NOTE:

A. Prepare synopsis (small brief) on an A4 size sheet about a working model on the

following topics:

(i) Fun with magnets

(ii) Fun with chemicals

(iii) Light

(iv) Electricity

This should include objective, materials required, phenomenon involved, procedure,

narration.

SOCIAL SCIENCE

1.

Students are supposed to choose any one of the Projects given:

PROJECT WORK

PROJECT 1 – COMMUNICATION FACILITIES FOR DISASTER MANAGEMENT

1. Choose any one method of communication from various means of communication like

radio/satellite/television/ Ham radio which are used by Government departments such as the

Indian Meteorological Department to disseminate information.

2. Find out how the information is disseminated by them at various levels during disasters.

Prepare a report.

OR

PROJECT 2 – PRESSURE GROUPS AND MOVEMENTS

1. Any two Popular struggles in India

2. Social Issues

3. Mobilisation Involved

a. Issue Specific b. General or Generic

4. Evolution and spread of Movement

5. Influence of movements on politics

6. Political support

7. Impact on Democracy

Following essentials are required to be fulfilled for its preparation and submission-

1. The total length of the project report will be 15-20 pages.

2. The project report will be handwritten and credit will be awarded to original drawings,

illustrations and creative use of materials.

3. The project report will be presented in a neatly bound simple folder.

4. The project report will be developed in this sequence- • Cover page showing project title,

student information, school and year

• List of contents • Acknowledgements and preface (acknowledging the institution, offices and

libraries visited and persons who have helped).

• Introduction. • Chapters with suitable headings.

• Planning and activities to be done during the project, if any.

• Conclusions (summary and suggestions or findings, future scope of study)

• Bibliography • All the photographs and sketches should be labelled and related to the theme.

• Appendix (if needed)

2. Prepare a Map file showing the following maps on an outline political map of India:

a. Soil Types

b. Multipurpose projects and rivers

c. Major crops: Food, Fibre, Beverage and Non-food crops

3. Do the Assignments given below and complete in the respective subject notebook

ASSIGNMENT SOCIAL SCIENCE

GEOGRAPHY CH-1 “RESOURCES AND DEVELOPMENT”

SHORT ANSWER QUESTIONS

(80-100 words)

1. What is Sustainable economic development? Suggest any two ways in which resources can be

used judiciously.

2. What is the main cause of land degradation in Gujarat, Rajasthan and Madhya Pradesh? How

can it be checked?

3. “India is rich in certain types of resources, but deficient in some other resources”. Do you

agree. Support your answer with examples.

LONG ANSWER QUESTIONS

(100-120 words)

4. What is the relevance of Gandhian model of resource conservation in today’s world?

5. Which geographical factors are responsible for the evolution of black soil? Why is it

considered the most suitable for growing cotton?

POLITICAL SCIENCE CH-1 “POWER SHARING”

SHORT ANSWER QUESTIONS

(80-100 words)

1. What arrangements were worked out by the Belgian Government to accommodate regional

and cultural diversities.

2. Which values are associated with the idea of power sharing in any country?

HOTS

(100-120 words)

3. “ Both Belgium and Sri Lanka are democracies but they follow different systems of Power

Sharing” Support the statement by giving points of differences with examples.

4. Examine the reasons behind strained relationship between the Sinhala and the Tamil

communities in Sri Lanka.

5. “Power can also be shared among Pressure groups and Political parties”. Elucidate with

examples.

ECONOMICS CH 1: “DEVELOPMENT”

SHORT ANSWER QUESTIONS

(80-100 words)

1. Money cannot buy all the goods and services that one needs to live well” Explain.

2. Why do people’s development goals vary? Explain with examples.

HOTS

(100-120 words)

3. Distinguish between total income and average income. Which one is better indicator of

economic development and why?

4. “National Development of a country depends on the availability of public facilities”. How?

5. What is sustainable economic development? Suggest some ideas to make development more

sustainable in nature.

HISTORY CH 2: “ NATIONALIST MOVEMENT IN INDO-CHINA”

LONG ANSWER QUESTIONS

(100-120 words)

1. How were Vietnamese nationalists inspired by Japan and China to set up a democratic

republic? Explain with example.

2. Describe any five steps taken by the French for the development of the ‘Mekong delta region.’

3. ‘ The Ho Chi Minh Trail became advantageous to Vietnamese in the war against the US’.

Support the statement with arguments.

4. How did Paul Bernard argue in favour of economic development of Vietnam? Explain.

HOTS

(100-120 words)

1. There are two broad opinions on the new education policy by French in Vietnam? Discuss.

2. “The peace negotiations in Geneva followed the division of Vietnam that set in motion a series

of events that turned Vietnam into a battlefield”. Analyse the statement with arguments.

3. How did nationalism emerge in Vietnam through the efforts of different sections of society to

fight against the French?

4. Schools became a place for cultural battles in Vietnam. Highlight the resistance against French

domination.

NOTE: Homework of all subjects should be

submitted on 27th June,2017 to the class teacher

in their respective classes between 9:30am to

11:00am