SOCIAL SCIENCE. 2. Make a list of Authors along with their Publications and its Date from the chapter Novel, Society and History.

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1 Shishu Kalyan Sr. Sec. School, Nawada Holiday s Home work Class - X Note Summer vacations from to 30 June2018. School will reopen on 2 July 2018 Submit your holiday s homework in a presentable manner as per the nature of the work with name slip. Make a separate notebook to write holiday s homework. Holidays homework can also be downloaded from our website ENGLISH Students will do the homework in their respective subject notebook 1. (I) Read the prescribed Novel The Story of My Life by Helen Keller ( chapter 1 to 10) Write down the summary of these chapters and learn. (II) Write down the character sketch of any five characters given in the Novel that you have liked. (III) Discuss the theme of the Novel. (IV) Describe Helen s journey to Baltimore. (V) What does Helen mean by my soul s sudden awakening? 2. (I) Write the letters to the Editor (any three) (II) Write an application for job with your curriculum vitae attached to it.(any one) (III) Write the complaint letters (any two) (IV) Write down any 5 stories (word limit words) 3. Revise the whole syllabus which has been done before the summer break. And prepare yourself for Periodic Test-1 to be conducted in the month of July. SOCIAL SCIENCE 1. Write Short Note on the following in 50 words each. i. Renewable & Non-Renewable Resources ii. Pressure Group & Interest Group iii. Temperance Movement iv. Green Revolution v. Civil Right Movement vi. Globalisation vii. Liberalisation viii. Privatisation 2. Make a list of Authors along with their Publications and its Date from the chapter Novel, Society and History.

2 3. MAP WORK: On the outline map of India locate and mark or label the followings: Dams: Bhakra Nangal, Hirakud, Tungabhadra, Sardar Sarovar, Nagarjuna Sagar. Coal Mines:Korba, Jharia, Bokaro, Raniganj, Neyvali, Singareni. Textile Industries: Indore, Surat, Kanpur, Coimbatore, Madurai. Iron & Steel Plants. 10 national Parks. Note: Use maps separately for each topic. PROJECT: Choose any one topic: i. Prepare a project on the topic Money & Credit. It should include: Modern & Traditional form of Money. Difference between formal & Informal Source of Credit. Case Study of a Self help group. Role of the bank etc. ii. Disaster Management: Generating awareness on Disaster Mgt. Role of govt / non-govt functionaries in your locality in Disaster Mgt. Identify & design structure safety measures for constructing disaster resistant buildings (earthquake, landslide, cyclone, flood resistant). Read all chapters done and find out 50 Very Short answer type questions from each chapter. Note these questions down in your Note book. स म ज क व ज ञ न 1. ननम नलऱख त व षय ऩर स क ष प त ट प ऩण लऱ :- क. ननज करण. श करण ग. हररत-क र नत घ. दबर -सम ह ङ. न करण य तथर अन करण य स सरधन 2. मरनचचत र करयय:- भररत क र र मरनचचत र ऩर ननम नलऱख त व षय क दर रयइए:- i. बर ध - भर ड़र नर गऱ बर ध, ह ररकज ड, सरदरर सर र, नरगरजजयन सरगर, तज गभद रर, क यनर ii. क यऱ क रन- झररयर, ब करर, ररन ग ज, न ऱ, क रबर, लस गर न, तऱचर iii. स त त र-उद य ग - इ द र, स रत, करनऩजर, मदजररई, अहमदरबरद iv. ऱ ह-इस त ऩरस त त उद य ग

3 3. क र म कररएगए सभ ऩरठ ऩढ़ तथर प रत य क ऩरठ म स 50 अनत ऱघज उत तर य प रश न अऩन ग र ष म- अ करर क उत तर ऩजस स त तकर म लऱ Science Q1.Solve the given assignment in fair notebook and learn it. Q2.Prepare well the syllabus done till May for a 80 marks test in July. Assignment Q1.Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine Hydrogen chloride (ii) Barium chloride + Aluminium sulphate Barium sulphate + Aluminium chloride (iii) Sodium + Water Sodium hydroxide + Hydrogen Q2.A solution of a substance X is used for white washing. (i) Name the substance X and write its formula. (ii) Write the reaction of the substance X named in (i) above with water. Q3.Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Q4.Identify the substances that are oxidised and the substances that are reduced in the following reactions. (i) 4Na (s) + O 2 (g) 2Na 2 O (s) (ii) CuO (s) + H 2 (g) Cu (s) + H 2 O (l) Q5.What is a balanced chemical equation? Why should chemical equations be balanced? Q6.Translate the following statements into chemical equations and then balance them. (a) Hydrogen gas combines with nitrogen to form ammonia. (b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide. (c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. (d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Q7.Write the balanced chemical equations for the following reactions. (a) Calcium hydroxide + Carbon dioxide Calcium carbonate + Water (b) Zinc + Silver nitrate Zinc nitrate + Silver (c) Aluminium + Copper chloride Aluminium chloride + Copper (d) Barium chloride + Potassium sulphate Barium sulphate + Potassium chloride Q8.Why is respiration considered an exothermic reaction? Explain. Q9.Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions. Q10.Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity

4 Q11.A shiny brown-coloured element X on heating in air becomes black in colour. Name the element X and the black coloured compound formed. Q12.Calculate the number of electrons constituting one coulomb of charge. Q13.Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal? Q14.Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series. Q15.An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it? Q16.Why does the cord of an electric heater not glow while the heating element does? Q17.An electric iron of resistance 20 Ω takes a current of 5 A. Calculate the heat developed in 30 s. Q18.How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line? Q19.Several electric bulbs designed to be used on a 220 V electric supply line, are rated 10 W. How many lamps can be connected in parallel with each other across the two wires of 220 V line if the maximum allowable current is 5 A? Q20.Why do HCl, HNO 3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character? Q21.While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid? Q22.How is the concentration of hydroxide ions (OH ) affected when excess base is dissolved in a solution of sodium hydroxide? Q23.Write an equation to show the reaction between Plaster of Paris and water. Q24.What will happen if a solution of sodium hydrocarbonate is heated? Give the equation of the reaction involved. Q25.Write word equations and then balanced equations for the reaction taking place when (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon. (c) dilute sulphuric acid reacts with aluminium powder. (d) dilute hydrochloric acid reacts with iron filings. Q26.Five solutions A, B, C, D and E when tested with universal indicator showed ph as 4, 1, 11, 7 and 9, respectively. Which solution is (a) neutral? (b) strongly alkaline? (c) strongly acidic? (d) weakly acidic? (e) weakly alkaline? Arrange the ph in increasing order of hydrogen-ion concentration.

5 Q27.A milkman adds a very small amount of baking soda to fresh milk. (a) Why does he shift the ph of the fresh milk from 6 to slightly alkaline? (b) Why does this milk take a long time to set as curd? Q28.Give two important uses of washing soda and baking soda. Q29.Plaster of Paris should be stored in a moisture-proof container. Explain why? Q30.Draw magnetic field lines around a bar magnet? Q31.List the properties of magnetic lines of force. Q32.Why don t two magnetic lines of force intersect each other? Q33.What is the principle of an electric motor? Q34.What is the role of the split ring in an electric motor? Q35.Explain different ways to induce current in a coil. Q36.State the principle of an electric generator. Q37.Name some source of direct current. Q38.Which sources produce alternating current? Q39.When does an electric short circuit occur? Q40.Derive equivalent resistance for series and parallel connection? Mathematics PROJECTS: 1) COORDINATE GEOMETRY (Roll No. 1 15) Make an illustrative project file for the following: i. Collect 10 cuttings of two dimensional objects (triangles/various types of quadrilaterals) from the newspapers/magazines etc. and paste them on separate graph sheets. ii. Locate their vertices using coordinate axes. iii. Find the length of their sides using ruler and calculate their area. 2) STATISTICS (Roll No ) Make an illustrative project file for the following: i. Choose any 5 wards from South Delhi Municipal Corporation. ii. Find the number/names of candidates who contested for the elections from these wards. iii. Note their ages and prepare a frequency distribution table for the same taking as one of the intervals. iv. Find the mean, median and mode of the above data. v. Construct histogram and frequency polygon for the same taking ages (in years) on x axis and number of candidates on y axis. vi. Collect information about qualification of these candidates and prepare a pie chart under the following categories: Illustrate, up to class 10th, up to class 12th, graduate, post graduate and professionals. 3) VOLUME AND SURFACE AREAS (Roll No. 31 onwards) Make an illustrative project file for the following: i. Choose any 5 objects which are a combination of two or more 3D shapes (cuboid, cube, cylinder, cone, sphere and hemisphere). ii. Measure their dimensions (round off to nearest natural number) and note them in your file. iii. Calculate the curved/lateral and the total surface area of these solids. iv. Also, find the volume of these solids. v. Click pictures of the objects chosen and paste them along with the calculations. (You may also draw the pictures of the objects.) Assignment- ( To be done in the assignment register) Topic: Real Numbers

6 Q1. Using Euclid s division algorithm, find the HCF of the following. (a) 1288, 576 (b) 155, 1305 (c) 240, 1024 Q2. If the HCF of 210 and 55 is expressible in the form y, find y. Q3. Find the largest number which divides 245 and 1029 leaving remainder 5 in each case. Q4. Using prime factorization, find the HCF and LCM of 72, 126 and 168. Also show that HCF x LCM product of the three numbers. Q5. The HCF of two numbers is 145 and their LCM is If one number is 725, find the other. Q6. The product of two numbers is and their HCF is 54, find their LCM. Q7. After how many places of decimals, the decimal expansion of the rational number will terminate? Q8. State the fundamental theorem of Arithmetic. Q9. Check whether 5 n can end with the digit 0 for any natural number n. Q10. Express each of the following as the product of primes. (a) 6435 (b) 8085 (c) 2184 Q11. Show that square of an odd positive integer is of the form 8q + 1, for some positive integer q. Q12.Show that every positive even integer is of the form 2q and every positive odd integer is of the form 2q+1, where q is some integer. Q13. Prove that is an irrational number. Topic: Polynomials Q1. If (x + k) is a factor of 2x² + 2kx + 5x + 10, find k. Q2. If α and β are the zeroes of the polynomial p(x) = 3x² 5x + 6, find (i) (α / β)+ ( β / α ) (ii) α³ + β³ Q3.Find the quadratic polynomial whose zeroes are 5 and -4. Q4. Find a polynomial whose zeros are squares of the zeroes of the polynomial 3x² + 6x 9. Q5. If 1 is one of the zeroes of the polynomial p(x) = 7x x³ 6 find its other zeroes. Q6.Find the quadratic polynomial, sum and product of whose zeroes are 2 and 1 respectively. Q7. If the sum of the zeroes of the quadratic polynomial kx² + 2x + 3k is equal to their product, find k. Q8. Find a polynomial whose zeroes are 2, 1 and 1. What is its degree? Q9. Find the polynomial whose zeroes are reciprocals of the zeroes of the polynomial 2x² + 3x 6. Q10. Find the ratio of the sum and product of the zeroes of the polynomial 5x² + 2x 10. Q11.If α, β and γ are the zeroes of the cubic polynomial p(x) = 3x³ 6x² + 5x 3, then, find their sum and product. Q12. Divide 3 x + 2x² + x³ 3x 4 by (2 x ) and verify by division algorithm. Q13 Find all the zeroes of the polynomial p(x) = x 4 7x³ + 9x² + 13x 4, if two of its zeroes are and 2-3. Q14. What must be subtracted from 8x x³ - 2x² + 7x 8 so that the resulting polynomial is exactly divisible by 4x² + 3x 2.

7 Q15. Find all the zeroes of the polynomial f (x) = 2x 4 3x³ 5x² + 9x 3, if two of its zeroes are ± 3. Topic: Pair of Linear Equations in Two Variables Q1. Determine the value of k for which the given system of equations has unique solution: a) 2x 3y = 1 ; k x + 5y = 7 b) 4x 5y = k ; 2x 3 y = 12 Q2. Find the value of k, for which the system of equations has infinitely many solutions. a) 2x 3y = 7 ; (k+2) x (2k+1) y = 3(2k 1) b) x + (k+1) y =5 ; (k+1) x + 9 y = 8k 1 Q3. Find the value of k so that the following system of equations has no solution. a) (3k+1) x +3y 2 = 0 ; (k²+1) x + (k 2) y 5 = 0 Q4.Solve the following system of equations: 1) x + 2y + 1=0, 2x 3 y = 12 2) (2u+v) =7uv, 3(u+3v) = 11uv 3) 2x+y 3=0, 2x 3y 7= 0 4) x + y = a + b, ax by = a² b² 5) (a + 2b)x + (2a b)y = 2, (a 2b)x + (2a + b)y = 3 Q5. Solve the following system of equations graphically. a) x + y = 3, 2x + 5y = 12 b) x 2y 5 = 0, 3x 6y = 15 c) 2x 3y +13=0, 3x 2y + 12 = 0 d) 3x 4y 1=0, 2x y + 5 = 0 Q6.Represent the following equations on the graph and determine the vertices of the triangle, so formed. a) 2y x = 8, 5y x = 14, y 2 x = 1 b) y = x, y = 0, 3x + 3y = 10 Q7. Draw the graph of x y + 1 = 0 and 3x + 2y 12 = 0. Calculate the area of the triangle bounded by these lines and the x-axis. Q8. Solve the system of equations x y = 1, 2x + y = 8 graphically.shade the area bounded by these lines and x-axis. Also find its area. Q9. A man has belts and handkerchiefs which are together 40 in number. If he had 5 more handkerchiefs and 5 less belts, the number of handkerchiefs becomes four times the number of belts. Find the original number of each. Q10.The age of father is twice the sum of ages of his two children. Ten years hence, the age of father will be three-quarter of the sum of the ages of his children then. Find the present age of father. Q11. The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, the denominator becomes 8 times its numerator. Find the fraction. व षयटहन द - 1. रस रन क ऩद,न तर ज कर चश मर,दIररम ऱ मण ऩर जररम स, बरऱग व न भगत मरतर कर र चऱ यरद करनर ह,ऱ न अ दरज, अब तक क कए हजए ऩरठ यरद करन ह I

8 2. रस क ऩररभरषरओ क व स त तरर स जरनत हजए और चचत र सटहत उदरहरण प रस त तजत करत हजए एक क यरकऱरऩ त यरर क स जए 3. गरम क द त हजए भररत ज स द र म ऩरन क कम अकसर द न क लमऱत ह भररत सरकरर क जऱ बचरओ करययक म क स द र क, रऩन त यरर क स जएऱ ग तक ऩहज चरन क लऱए एक व रऩक त र म मरर त क गरड़ड़य कर र र म जऱर ह गरड़ड़य क बबक क लऱए ऱ ग क रकवषयत करत हजए एक व रऩन त यरर क स जए ऩ ड़ ज न कर रधरर ह ऩ ड़ इसक द त हजए न व भरग क ऩन करययक म क जनतर तक ऩहज चरन क लऱए एक व र त यरर कर रऩ ऱक स lux बनरओ सरबजन क प रचररक ह सरबजन क बबक बढ़रन क लऱए ऱ ग क रकवषयत करत हजए एक व रऩन त यरर क स जए 4. ऩर च अऩटठत गद यर र और ऩर च अऩटठत ऩद यर र करन ह 5. ननम न व षय ऩर ननब ध लऱ -: 6. ऩत र -: बदऱत ज न र ऱ - रत क रद समय कर महत और उसकर सद उऩय ग अऩन त र म ऩ यजऱ क समस त यर क ओर - ध यरन रक ष य करत हजए स त रस त य अचधकरर क ऩत र व द यजत अचधकरर क ऩत र लऱ कर बतरइए क रऩन त र क ऱ ग क कतन ऩर र रन कर सरमनर करनर ऩड़ रहर ह 7. एक स ब स तक क क मर क क व द यरथ क ऱ मणक स रद लऱ तक क क मर क क व द यरथ क ऩर जररम ऩर स रद लऱ नर ह 55 स 12

KENDRIYA VIDYALAYA SANGATHAN, CHENNAI REGION

KENDRIYA VIDYALAYA SANGATHAN, CHENNAI REGION CLASS: X 2018-19 SUMMER VACATION HOME WORK SUB: ENGLISH S.NO TOPIC LEARNING OBJECTIVES EVALUATION CRITERIA DURATION 1. Main Course Book Communicative English