INDIAN SCHOOL NIZWA HOLIDAY HOMEWORK 2015-16 CLASS – IX

ENGLISH 1.Make a project on the topic “ENDANGERED SPECIES.” It should include a narrative description of five endangered animals.(origin, features, places it is found etc).You may refer your M.C.B. UnitEnvironment. 2.Imagine you are a Radio Jockey .You get to a chance to interview a celebrity of your choice. Write the interview in the form of a dialogue. Then write the same interview in Reported Speech. 3.Solve all the revision worksheets based on Reading, Grammar and Literature given in class. 4.Buy 2 Sample papers, based on class –IX, Term-1 English, attempt it on your own, taking 45 minutes for each section i.e.-Reading, Writing, Grammar and Literature. Submit the answer scripts along with the question paper in an A-4 sized file.

HINDI ग्रीष्मकालीन अवकाश के ललए गह ृ कार्य (क्लास IX )

1. मी एंड माइन में दिए गए 5 अपदित गद्ांश , 5 अपदित काव्ांश को पढकर प्रश्नों के उत्तर लिखिए (SAMPLE PAPER) 2. प्रततदिन एक - एक पाि के प्रश्नों के उत्तर लिखिए | 3. सभी पािो में आए मह ु ावरे , प्ाा् वाची , वविोम , उपसगा , प्रत्््, वर्ा-ववच्छे ि तथा संधि का अभ््ास कीजिए | 4. धचत्र वर्ान , संवाि िेिन का अभ््ास का्ा परू ा कीजिए |

MALAYALAM 1. വിദ്യാലയ ജീവിതവ ും പിന്നിട ള്ള ജീവിതവ ും താരതമ്യും ചെയ്ത് ക റിപ്പു തയ്യാറാക്ക ക? 2. ചെറ വാചര ശങ്കരന് ക ട്ടി ഉന്നയിച്ച ദ്ാര്ശനിക പ്പശ്നും എന്ത്? 3. “പാട ചപട്ടുണ്ടാക്കിയ പ ഞ്ചിരി” ഈ പ്പയയാഗത്തിചല പ്പയതയകത എന്ത്? 4. ആസ്വാദ്കചന വവകാരികമ്ായി സ്പര്ശിക്ക ന്ന െില സ്ന്ദര്ഭങ്ങള് “അയങ്ങ വീട്ടിയലക്ക് എന്ന കവിതയില് ഉണ്ട് വിവരിക്ക ക? 5. നിങ്ങളുചട പ്പയദ്ശചത്ത യാപ്തായേശും പരിഹരിക്കാന് അവിശയചപ്പട്ടുചകാണ്ട് ഗതാഗത മ്പ്ന്തിക്ക് കചത്തഴ ത ക? 6. കൃഷി സ്ഥലങ്ങള് നികത്ത ന്ന് മ്ൂലും നാും യനരിട ന്ന പരിസ്ഥിതി പ്പശ്നചത്തക്ക റിച്ച് യകപ്ന്ദപരിസ്ഥിതി മ്പ്ന്താലയത്തിന ഒര കത്ത് തയാറാക്ക ക? 7. ടൂറിസ്ത്തിന്ചറ അനന്തസ്ാധ്യതകള് വിവരിച്ചുചകാണ്ട് വക പ്പ്

മ്പ്ന്തിക്ക് കത്ത് തയ്യാറാക്ക ക? 8. നിങ്ങളുചട നാട്ടില് വായനശാല സ്ഥാപിയക്കണ്ട ആവശയകത െൂണ്ടിക്കാട്ടി പഞ്ചായത്ത് അധ്ികാരിക്ക് കത്ത് തയ്യാറാക്ക ക? ………………………

:BN മ്ലയാള സ്ാഹിതയത്തിചല ഏചതങ്കില ും ഒര പ സ്തകും വായിച്ച് ആസ്വാദ്നും തയ്യാറാക്ക ക.ആ പ സ്തകും സ്കൂള്‍ വായനശാലയിയലക്ക് സ്ുംഭാവന ചെയ്യുക.

PHYSICS    

ACTIVITY: MAKE A POWERPOINT PRESENTATION OR A VIDEO PRESENTATIO ON NEWTON’S THREE LAWS OF MOTION. QUESTION BANK BASED ON SA I CHAPTERS. Prepare for science exhibition. Buy and bring materials for science exhibits. Collect sample papers and attempt them

QUESTION BANK 1. In a long distance race , the athletes were expected to take four rounds of the track such that the line of finish was as the same as the line of start. Suppose the length of the track was 200m. (i) What is the total distance travelled by the athletes? (ii) What is the displacement when they touch the finish? (iii) Is the motion of the athlete uniform or non- uniform? (iv) Is the displacement and the distance same at the end of the race? 2. Rita takes 20 minutes to cover a distance of 3.2Km on a bicycle. Calculate her velocity in units of km/min, m/min, and km/hr. 3. Ahmed is moving in his car with a velocity of 45Km/h. How much distance will he cover in (i) one minute (ii) one second? 4. Starting from rest saurav paddles his bicycle to attain a velocity of 6m/s in 30s. Then he applies brakes so that the velocity of the bicycle comes down to 4m/s in the next 5s. Calculate the acceleration of the bicycle in both the cases. 5. The velocity of a car is 18m/s. Express this in Km/h. 6. What is meant by uniform motion? 7. An electric train is moving with a velocity of 120Km/h. How much distance will it move in 30s? 8. Interpret the following graphs. v v

v

t time

time

9. A body is moving with a velocity of 10m/s. If the motion is uniform , what will be the velocity after 10s? 10. A body moves with a velocity of 2m/s for 5s then its velocity uniformly increases to 10m/s in next 5s. Thereafter its velocity begins to decrease at a uniform rate until it comes to rest after 10s. Plot a velocity – time and distance time graph for the motion of the body. Mark the portions of the graph to show when the motion of the body is uniform and when it is non uniform. 11. What would be the force required to produce an acceleration of 2m/s2 on a body of mass 12Kg? What would be the acceleration if the force was doubled? 12. A man pushes a box of mass 50Kg with a force of 80N. What will be the acceleration of the box due to this force? What would be the acceleration if the mass were halved? 13. If action and reaction is always equal and opposite , why a cart pulled by a horse can be moved? 14. How much momentum will a dumb bell of mass 10Kg transfer to the floor if it falls from a height of 0.8m? take the downward acceleration to be 10m/s2. 15. Hit on a wall and a piece of sponge with nearly equal force. In which case will you be more hurt?explain. 16. Why is it difficult to balance our bogy if we accidently step on a peel of banana? 17. Explain why the sole of a shoe is worn out. 18. A particle is dropped from a tower 180m high. How long does it take to reach the ground? 19. Why does a mug full of water feel lighter inside water? 20. Explain why it is difficult for a fireman to hold a hose, which ejects large amount of water at high velocity?

CHEMISTRY 1. Question bank 2. Assignment on application of colloids 3. Prepare for science exhibition. Buy and bring materials for science exhibits. 4. Collect sample papers and attempt them

QUESTION BANK 1. Name the process involved in the following. a) Dry ice is kept at room temperature and at one atmospheric pressure. b) An acetone bottle is left open and the bottle becomes empty. c) Milk is churned to separate cream from it. d) Settling of sand when a mixture of sand and water is left undisturbed for sometime. e)Fine beam of light entering through a small hole in a dark room illuminates the particles in its path . f) Separating a mixture of anthracene and sugar. g) Squeezing out water from wet clothes while drying.

2. Account for the following. i)Automobile tyres usually burst in summer. ii)A diamond knife is quite often used for cutting glass. iii) Salt dissolves in hot water faster than cold water. iv) Solids expand on heating . v). We feel cold when we put on wet clothes. vi)Sea water is unfit for washing and drinking. vii)Particles of a colloidal solution do not settle down when left undisturbed, while in the case of suspension they do. 3. Answer the following a)What does LPG stand for? b) Which solvent used to separate a mixture of sulphur and salt? c) What is the unit of latent heat of vapourisation? d)A slution contains 30 g of glucose in 500 ml of water. Calculate the mass by volume percentage of solution. e) Distinguish between physical and chemical changes. f) What differences in the properties of oil and water enable their separation by a separating funnel? g)0.5 g of salt is dissolved in 25 g of water. Calculate the percentage amount of the salt in the solution. h)How does the change in pressure affect the state of solid CO2 ? i)What property of gases makes LPG & CNG help in transporting these fuels? j) Give the composition of brass and bronze. What do we call them? k)How many phases are there in a colloid? Which are they? l)What is the function of fractionating column in fractional distillation?

BIOLOGY A. Question bank including board questions. Answer the following. Qns 1 to 11 carries 1 mark each, 12 to 20- 2 marks, 21 to 32—3 marks and 33 to 40- 5 marks 1. 2. 3. 4.

State the function of chromosome in a cell. Name the cell organelle which you would associate with elimination of old and worn out cells. Mention the change in human red blood cells when they are placed in hypotonic salt/ sugar solution. A de-shelled egg is placed in a concentrated salt solution and observed after five minutes. What change takes place? 5. Lysosomes are known as the suicidal bag of a cell. Give a reason to justify the statement. 6. Name the processes by which CO2 and H2O move into and out of the cell ? 7. Name the phenomenon when a living plant cell loses water through osmosis and shrinks.

8. Draw a labelled diagram of a neuron. 9. State the role of ligament and tendons in our skeletal system. 10. Name the cell organelle that detoxifies poisons and drugs into liver of vertebrates. 11. Name any two materials stored in leucoplasts. 12. The epidermis in desert plants is covered by waxy coating. Name the substance which constitutes the coating. State three advantages of this coating. 13. Write the location and function of collenchyma tissue. 14. List four functions of blood. 15. Write two locations of the following animal tissues : (1) Simple Squamous Epithelial cells. (2) Cuboidal Epithelium. 16. List two points of differences between Parenchyma and Sclerenchyma. 17. With the help of labelled diagrams differentiate parenchyma and collenchyma. 18. List any two functions of epithelial tissue in human body. 19. Name the tissues which store fat in our body. Where are these tissues found ? 20. Name the living component common to both the complex permanent tissues found in plants. What is its function? 21. State the kind of cells present in cork or bark of a tree, Name the chemical found in their walls and write its function. 22. “Water hyacinth plant floats on water surface”. Name the tissue and its type due to which it is possible and also explain the special feature of this tissue that helps in this. 23. (i)List two ways of obtaining fish. (ii) Give two examples of marine fish of high economic value, formed in sea water. (iii) Write one problem that is found in composite fish culture system. 24. “Quality consideration of crop products varies from crop to crop”. Justify giving three examples. 25. State in brief any three roles of epidermis in plants ? 26. Differentiate between diffusion and osmosis. Write any two examples where a living organism uses osmosis to absorb water. 27. Define the term ‘tissue’. Differentiate between simple permanent tissue and complex permanent tissue in plants. Name the tissue which (a) allows aquatic plants to float (b) provides flexibility to plants 28. Distinguish leucoplast from chromoplast based on one feature. Give an example of chromoplast present in plant cell. What is the function of chromoplast in the plant cell ? 29. List in a tabular form any three differences between striated and smooth muscles. 30. What are the two types of endoplasmic recticulum ? Mention one function of each. 31. State one important function of each of the following : (a) Glandular epithelium (b) Areolar tissue (c) Nervous tissue 32. Name the type of plant tissue found in the following : (a) Root Apex (b) Coconut husk (c) Aquatic plants for providing buoyancy 33. (a) What are milch and draught animals ? Give an example for each. (b) Name the two components of cattle feed. (c) Name the method which is commonly used for improving cattle breed? Write names of one exotic breed which is selected for the purpose. Mention two aims for which this method is adopted for improving cattle breed. 34. Explain composite fish culture system. Mention the criteria on the basis of which species are selected for this purpose. Explain it with the help of example. 35. (a) Compare mixed cropping and inter cropping. (b) What is Green Manure? How is it prepared? State its advantages. 36. What are pests? How can plant pests be controlled? In what way biopesticides are better than the chemical pesticides?

37. A poultry farmer wants to increase his broiler production. List three management practices he must follow to enhance the yield. State and explain the daily food requirement of broilers. 38. Explain five factors for which crop variety improvement is done. 39. India has wide variety of water resources and a highly varied climate. Describe in brief any five kinds of irrigation systems adopted to supply water to agricultural lands. 40. (a) Name any three connective tissues. Give any one function of each. (b) Write any one function of the following : (a) Xylem (b) Phloem 

PREPARE FOR SCIENCE EXHIBITION . BUY AND BRING NECESSARY ITEMS FOR MAKING EXHIBITS.

SOCIAL Hist-Project on Nelson Mandela. Geography –Disaster Management project-‘safer construction pattern for an Earthquake’ Eco- Activity- Observe the activities done by the villagers and categorise into 3 sectorsprimary,secondary and tertiary.

MATHEMATICS QUESTION BANK Chapter I Number System 1

1. . Prove That

1

−1

4

1

22 𝑋 33 𝑋 44 3

10 5 𝑋 55

+

−7

33 𝑋 5 5 −3

4 5 𝑋6

= 10

2. If x is an irrational number, what can you say about the number 𝑥 2 , Support your answer with examples. 3. If x =

√3+√2 √3−√2

and y =

√3−√2

Find the value of x2+y2

√3+√2

5

4. Simplify √243𝑥10 𝑦 5 𝑧10 5. State the following are rational or irrational 6

i. 2√3

ii. (√2 + 2)

2

iii. (5+√5) (5-√5) 𝑝

6. Express the following in the form of 𝑞

i. 4.7̅

ii. 0. ̅̅̅̅̅ 621 ii. 125.3̅

Chapter II Polynomials 1

1

1.

If x - 𝑥 = 3+ 2√2, Find the value of 𝑥 3 - 𝑥 3

2.

Find the cube of (𝑥 + 3)

3.

Evaluate (0.2)3 – (0.3)3 + (0.1)3

4.

If a +b +c = 0 , then find the value of 𝑏𝑐 + 𝑐𝑎 + 𝑎𝑏

5.

If the polynomials ax3+3x2-13 and 2x3-5x +a when divided by x-2 leave the same remainder , find the value of a?

1

𝑦

𝑎2

𝑏2

𝑐2

Chapter 6 Lines and Angles 1. If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3, then what is the measure of the larger angles ? 2. Prove that two lines perpendicular to the same line are parallel to each other. 3. If two straight lines are perpendicular to the same line, prove that they are parallel to each other. 4. Two lines AB and CD intersect at O. If