HOLIDAYS HOMEWORK ( ) CLASS : IX

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SCHOOL CODE NO. 04712 BCM SCHOOL = A Senior Secondary School, Affiliated to CBSE, New Delhi SEC 32- A CHANDIGARH ROAD, LUDHIANA School Web Site:- www.bcmschools.

1 SCHOOL CODE NO BCM SCHOOL = A Senior Secondary School, Affiliated to CBSE, New Delhi SEC 32- A CHANDIGARH ROAD, LUDHIANA School Web Site:- HOLIDAYS HOMEWORK ( ) CLASS : IX ENGLISH 1. Create a poem (minimum 16 lines)using at least 3 poetic devices.mention the poetic devices used in the poem.make it on A3 size sheet. 2. Write a short story based on given outline or cues in words. Ashima s brother Prikshit got a new mobile phone...she did not get any...her parents allowed Prikshit to go out to meet and party with his friends but Ashima did not have that privilege...what happens next? 3. Read chapters 1 to 10 of novel Three Men in Boat and write short summary of each chapter in ( )words. 4. Solve Practice Periodic Test-1 of BBC. Note: The questions given above should be done on separate notebook. x MATHEMATICS 1. If + y =1 (x, y o ) then find the value of y x x3 + y 3 2. If x = find the value of x 3 + 1/ x 3. (p+q) + p q 3. Prove that : =x then prove that (p+q) (p q) qx2-2px +q = 0 4. Simplify: [5{8 1/ /3 } 3 ] 1/4 5. If x = find the value of x + 1 x 6. Find a and b, if 7. Simplify: 2 (5 ) + (3 ) (3 ) = a + 15 b 8. Find the value of x, if 7 x 3 x 5 2x 8 = a +b =10 and a 2 + b 2 = 58, find the value of a 2 + b 2 + c Without actual division, prove that : 2x 4 5x 3 +2x 2 x +2 is divisible by x 2 3x The polynomials ax 3-3x and 2x 3-5x + a when divided by x 2, leaves the remainder p and q respectively. If p 2q = 4, find the value of a. 12. Find a and b so that the polynomial x 3-10x 2 + ax + b is exactly divisible by the polynomials x 1 and x Factorise : a 3 (b c) 3 + b 3 (c a) 3 + c 3 (a b) If x 1/3 + y 1/3 + z 1/3 = 0, then write the value of x + y + z 15. If a +b +c = 9, ab + bc + ca = 26, find the value of a 2 + b 2 + c It is know that, if x +y = 10, then x + y +z = 10 +z state the euclid s axiom which illustrate this statement. 17. We know that if x = y, then x +z = y +z. which of the Euclid s axiom illustrate this statement. 18. The mean of n observations x 1, x 2, x 3 x n is X. if each observation is divided by non zero number p, then find the new mean. 19. The mean of the marks scored by 50 students was found to be 39. Later on it was found that a score of 43 was misread as 23. Find the correct mean. 20. Find the mean of all factors of 36.

2 21. Mean of six numbers is 23. If one of the number is excluded, the mean of the remaining numbers is 20. Find the excluded number. 22. The sum of the 25 observations us 36. If the mean of the first 13 observations is 32,and that of the last is 39, find the 13 th observation. 23. A ship sails out to an island at the rate of 15 km/h.and sail back to the starting point 10 km/h. find the average sailing speed for the whole journey. 24. If mean of the following data is 21.6.find the value of p. X F 5 4 p If 10,13,15,18,x+1,x+3, 30, 32, 35,41 are 10 observations in an ascending order with median 24, find the value of x. 26. A die is thrown at random 250 times and outcomes are noted as given below. Outcomes Frequency If the die is thrown random, find the probability of getting: i) more than 6 ii) atleast 4 iii)atmost A table given below shows the ages of 75 teachers in a school. Age (in years) Number of teachers A teacher from this school is chosen at random. What is the probability tha the selected teacher is a) 40 or more than 40 year old. B) of an age lying c) at most 39 year old d ) at least 40 years old 28. Three coins are tossed 200 times and we get : 3 heads: 39times ; 1heads: 160times ; 0 heads :36times. When three coins are tossed random, what is the probability of getting i) 3 heads ii) 2 tails iii) atleast 2 tails iv) atmost 3 heads 29. Write the sample space when three coins are tossed randomly. 30. The daily pocket expenses of 206 students in a school are given below. Pocket expense(in rupee) Number of students(frequency) Construct a histogram and frequency polygon of the same graph representing above data. PROJECT: Observing interesting patterns in cricket match Objective: comparison of the performance of two teams in a IPL 2017 Cricket match. Project Detail: study various aspect such as; a) Performance of both the teams according to run rates per over, wicket rates per over and performance of players. b) Investigate if run rates are uniform for both teams

3 Methods: a) all the details and the data can be collected from reliable sources and present the data using frequency table, bar graph, pi-charts, frequency polygon and histogram. Inference can be drawn from above information. NOTE: Syllabus for periodic test- 1 Ch1. Number systems Ch.2 Polynomials Ch.14 Statistics Ch. 15 Probability SCIENCE PHYSICS 1) A particle is moving in a circle of diameter 5m. What is its displacement when it completes one and half revolutions? 2) What is the nature of the distance time graph for accelerated motion? 3) If the acceleration of the particle is constant in magnitude but not in direction, what type of path does the particle follow? 4) What can you say about the motion of a body if its distance time graph is a straight line parallel to time axis? 5) Explain how it is possible for an object to move with a constant speed but with uniform acceleration. 6) Draw graphs which represents the following cases. a) A ball thrown vertically upwards and returning to the hand of the thrower. b) A body decelerating to a constant speed and then accelerating. 7) An object starts with initial velocity u and attains final velocity v. The velocity is changing at a uniform rate. What is the formula for calculating average speed in this situation? 8) A child drops a ball from a height of 10 m. Assume that its velocity increases uniformly at the rate of 10 m/s. Find i) the velocity with which the ball strikes the ground. ii) The time taken by the ball to reach the ground. 9) A car starts from rest and acquires a velocity of 54km/h in 2 min. Find i) the acceleration ii) distance travelled by the car during this time. 10) On a 120 km track, a train travels the first 30 km at auniform speed of 30km/h. How fast must the train travel the next 90 km so as to average speed 60km/h for the entire trip? Activity Suppose you are going from destination A to destination B during your summer vacation. Divide the full time of your journey in equal intervals of time say 30 min. or 1 hr. etc. and note down the distance covered during each interval from the odometer. Answer the following questions: a) Find out the average speed during journey. b) Perform the same activity during return journey. c) Compare their average speeds. d) Plot the graph of distance time for both the trips. CHEMISTRY 1. Define organic compound, latent heat of fusion. 2. Define saturated and unsaturated solution. 3. What is the physical state of water at C. 4. Can we regard high fever as matter? 5. (a) Why does level of water not change when common salt is dissolved in water?

4 1. Why do raisins and apricots swell up when placed in water? Name the phenomenon involved. 2. Why does the plants cell placed in a hypotonic solution, not burst? 3. Why mitochondria are called semiautonomous organelles? 4. Why lysosomes are called natural scavengers and cellular housekeepers? 5. Name any two cell organelles which are bounded by double membrane. 6. State two types of plastids and write one function of each. 7. Why do plants cells possess large sized vacuole? 8. Why does the skin of your fingers shrink when you wash clothes for long time? 9. What is plasmolysis? What happens to a plasmolysed cell when it is placed in a hypotonic solution? 10. Water Hyacinth floats on water surface.explain. (b)why do wet clothes not dry easily on rainy day? 6. State two differences between a gas and a vapour. 7. How can we separate cream from milk? 8. (a) Crystallisation is a better technique than simple evaporation. Give reason to justify the statement. (b)classify each of the following as element, compound, mixtures. Gold, air, marble, milk, sugar. 9. (a) Explain why particles of a colloidal solution do not settle down when left undisturbed while in the case of a suspension they do. (b)compare in tabular form the properties of true solution and colloids with respect to tyndall effect and stability. 10. A solution contains 50g of sugar in 350g of water. Calculate the concentration of solution in terms of mass by mass percentage of the solution. (b)calculate the masses of can sugar and water required to prepare 250g of 25% solution of cane sugar. 11.(a)With the help of labelled diagram describe an activity to show that particles of matter are very small. Use the following material that has been provided to you.four beakers, three test tubes,dropper, distilled water and few crystals of KMnO 4. (b)small quantities of water and acetone are placed on the palm of both the hands. Which will experience more cooling? (c)a diver is able to cut through water in a swimming pool which property of matter does this observation show? 12.(a)when two substances A and B are powdered together in a pestle and mortar, a large amount of heat is evolved. As a result, a new substance C is formed? What is the nature of the new substance? (b) Can we separate a mixture of water and alcohol by use of separating funnel? If not suggest a suitable method. (c) You are provided with two liquids, one is a mixtures of two miscible liquids while the other is a pure compound. Suggest two ways to distinguish them from each other. 13(a) Fog and cloud are both colloidal in nature.how do differ? (b)what is the function of fractionating column in fraction distillation? BIOLOGY:-.

5 11. Name two components of blood and give functions of blood plasma. 12. Give the characteristics and role of the following:- (a) cutin (b) Lignin (c) suberin 13. Give two differences between:- (i) Ligament and tendons. (ii) Bone and cartilage (iii) blood and lymph 14. Draw a well labelled diagram of T.S of dicot stem. PROJECT WORK:- Prepare a neat & clean project file of:- (a) The common name, scientific name & medicinal value of 20 plants. (b) Paste their photographs also. SOCIAL SCIENCE I. Project: Prepare a project file, Poster and collage or model. Include the following disaster with proper presentation and pictures etc. Earthquakes, Volcanoes, Landslides, Cyclones II. Learn the following chapters for Periodic Test in July. Political sci. - Ch. 2,3 Geog. Ch. 3 Economics- Ch-1,2,3 III. Write the answers of the following questions..q1. How can you say that Pakistan was not exercising democracy when General Musharraf was ruling? Q2.How was Apartheid practiced in South Africa. Q3. What are the different ways of increasing production on the same piece of land? Use examples to explain. Q4.What is the difference between disguised unemployment and seasonal unemployment? Q5. What is the aim of SarvaShikshaAbhiyan? Why mid-day meal scheme was launched by the govt. in the school? Q6. Why was the poverty alleviation programme not successful in most part of India? Q7. How will you Identify poverty on the basis of social exclusion and Vulnerability? Q8. Why should we accept the constitution made by constituent Assembly more than 50 yrs. ago? Q9. Democracy provides a method to deal with differences and conflicts. Elaborate this statement. Q10. Give main characteristics of the largest peninsular River

6 ਜ ਬ ੧. ਹਠਲ ਖਲ ਲ ਆਲ ਚ ਲ ਸਦ ਵ ਵ ਆ ਦ ਵ ਤਰ ਗ ਵ ਤਰ ਰਣਨ ਰ :- ਸ ਫ਼ਸ ਥਰ ਭ ਰਤ, ਣ ਬਚ ਓ, ਰ ਸਟ ਨਦ ਲਦ ਬਜ਼ ਰਗ ਦ ਸਲਤ ਰ ੨. ਹਠਲ ਖਲ ਲ ਆਤਚ ਰਟਬਣ ਓ : ਭ ਈਦ ਜ, ਗ ਰਧਨ ਜ, ਬ ਲਦ ਸ, ਸ ਗ ਰ ਨ ਨ ਦ ਜ ਤਗ ਰ ਗ ਲਬ ਦਲਸ ਘਜ ੩. ਦਸਲਦਨ ਦ ਆ ਦ - ਦ ਖਬਰ ਲ ਖ ਅਤਵ ਤਰ ਗ ਓ! ह न द 1.व य करण ऩ स तक म स व दय थ व य करण अभ य स हऱ कर ग, ज नक ऩ ष ट स ख य 121 स 125 तक और अभ य स क यय 1 स 7 तक ह l 2. ऩ ठ ऩर आध ररत न म न न त प रश न क उत तर लऱख ए : (i) गय द र हऱ म त न ऩर न क स व य ह र ककय? (ii) द ब ऱ क कथ ऩ ठ क आध र ऩर लऱख ए क ज ह सम ऱ ग ह र और म त क द कर म ह क य बबचक ऱ त थ? (iii)ड ड क आस ऩ स क प र क ततक स दयय क अऩन शब द म ल ख एl (iv) ततब बत म क व य ग य ज़म न क क य स थ त ह? (v)ज ञ नक आ ध क स धक क न ऩर क य प रभ ऩड़त ह? (vi)ऊ च क ऱ म जन म ऱ कर ऊ च मम न करन क क य ऩररण म ह त ह? (vii)ग ऩ श र क ष ण द र अपन ई गय वथ ओ क य ध रण करन च हत थ? (viii)न न क ऩ न म उतरत ह त भ ऩ न म क द गय l द न न ककन भ न ओ ए म ल य स प र ररत ह कर ऐस ककय ह गय? (ix) ब ढ़ ऩ डडत त र म ऱ ग मदद आऩ क स कर सकत ह? (x)ववल न न त य ह र स क ई एक स दर च टय बन इए l

Kendriya Vidyalaya, Keshav Puram (shift-i)

Kendriya Vidyalaya, Keshav Puram (shift-i) Summer Vacation Holidays Homework CLASS IX (ENGLISH) 1.WRITE ARTICLES ON THE FOLLOWING IMPORTANCE OF ADULT EDUCATION, SAVE WATER SAVE LIFE, IMPORTANCE OF SPORTS,