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APEEJAY SCHOOL, SAKET HOLIDAY HOMEWORK 2017-18 CLASS- X ENGLISH 1. Read the supplementary novel A Story Of My Life by Helen Keller. On the basis of your understanding of the autobiography write the character sketch of the following characters in 120-150 words. i) Helen Keller ii) Arthur H.Keller iii) Kate Adams iv) Ms Anne Sullivan v) Alexander Graham Bell vi) Mr. Merton S. Keith vii) Mr Anagnos viii) Mr Arthur Gilman ix)Bishop Brooks x) Mrs and Mr Laurence Hutton xi) Dr. Edward Everett Hale Also mention the role of each of them in Helens life. This assignment should be done in the Language notebook. 2.Complete units 1 to 7 of the Grammar Workbook 3. Suggested Readings: 1. Pride and Prejusice by Jane Austen 2. To kill a Mockingbird by Harper Lee 3. The Canterville Ghost by Oscar Wilde 4. The Hounds of Baskerville by Arthur Conan Doyle ) | 1. - | | 2. | | 3. ? | ) | 1. 2. ( 97 105) 3. - | FRENCH Faites une comparaison dtaille des temps en Francais et en Anglais que vous avez lu jusqu' la. Expliquez la diffrence avec au moins deux exemples de chacun dans les deux langues.Faites -la dans votre cahier de classe. Amusez-vous bien pendant vos vacances. Dete. MATHEMATICS Students need to solve three assignments in their assignment notebook attached herewith. a) Assignment-1on Real Numbers b) Assignment-2 on Polynomials c) Assignment-3 on Linear Equations in two variables SCIENCE The worksheets need to be done in the respective subject notebooks. Please refer to the attachments for the worksheets. a) Assignment-1 -Chemistry b) Assignment-2- Biology c) Assignment-3- Physics Collect and maintain the seeds of fruits, flowers, trees ,etc. throughout the summer. In the monsoon you have to carry those seeds for dispersal and growth of plants in any place/ city/ village/ forest area/ barren land/ both sides of railway tracks ( while in train). SOCIAL SCIENCE People all over the world have mobilized themselves to organize movements to restore democracy or to strengthen the existing democratic system. The lesson Popular Struggles and Movements tells us about such movements and the role of Pressure Groups, Political Parties and movements. You are required to do a project based on this. The project work will be assessed under subject enrichment activity and will be of of 5 marks Each student will do the project on the theme as per his/her roll no. ROLL NO THEME 1-15 Nepal witnessed an extraordinary popular movement in April 2006. Bolivia is a poor country in Latin America where the people organized a popular struggle to strengthen democracy. From these two case studies you have to research on Why did popular movements start in both the countries and what were the main features of these popular movements ? Discuss the common features as well as dissimilarities of the popular struggle in Nepal and Bolivia. What conclusion can be drawn from the examples of Nepal and Bolivia about democracy? 16-30 In a democracy different kinds of organization work behind any big struggle. One is direct participation in competitive politics; other is indirect in which people can get govt. to listen to their demands. You have to research on What are pressure groups or Interest Groups? Mention a few examples of the pressure groups. How are they different from Political Parties? Describe the forms of relationship between pressure groups and political parties. Give examples. With the help of recent examples state the differences between Sectional and Public Interest Group. 31-47 In Nepal and Bolivia movements were launched for different reasons. As in the case of Interest Group, the groups involved with movements also include a very wide variety. You have to research on What is a movement? With the help of examples analyze how Issue specific movement is different from Generic movement. How do they exert influence on politics? Is their influence healthy. PREPARATION AND SUBMISSION OF PROJECT REPORT 1. Each student will prepare and submit her/his project report after the summer vacation. Following essentials are required to be fulfilled for its preparation and submission- the project should be made from eco-friendly products without incurring too much expenditure. The Project Report should be handwritten by the students themselves 2. Marks 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 the following 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 person who have helped). 5. All the photographs and sketches should be labeled and related to the theme. APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT 1- CHEMISTRY I. Do the following questions in your chemistry notebook. Q1. 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 and Z and write the chemical reactions involved. Q2. Bhawna took a pale green substance A in a test tube and heated it on the flame of a burner. A brown colour residue B was formed along with evolution of two gases with burning smell of sulphur. Identify A and B. Write the chemical equation involved. Q3. 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? Q4. A student has mixed the solution of Lead (II) nitrate and Potassium iodide. a. What was the colour of the precipitate formed? Can you name of the compound precipitated? b. Write the balanced chemical equation for the reaction. c. What type of reaction is it? Q5. A student burnt a metal A found in the form of ribbon. The ribbon burnt with a dazzling flame and a white powder B is formed which is basic in nature. Identify A and B. Write the balanced chemical equation. Q6. Asha has been collecting silver coins & copper coins. One day she observed a black coating on silver coins and green coating on copper coins. Which chemical phenomenon is responsible for these coatings? Write the chemical name for the Black and Green coatings? Q7. A few drops of Phenolphthalein indicator were added to an unknown solution A. It acquired pink colour. Now another unknown solution B was added to it drop by drop and the solution become colourless. Predict the nature of A and B. Q8. What is the difference between? (a) Combination & Decomposition reaction (b) Displacement & double displacement reaction Q9. Balance the following chemical equations: (i) Cu + HNO Cu(NO) + NO + HO (ii) Zn + HSO ZnSO + SO + HO Q10. Translate the following statement into balanced chemical equation: (i) Ferrous sulphate on heating gives sulphur dioxide, sulphur trioxide, ferric oxide and water. (ii) When dilute hydrochloric acid is added to magnesium carbonate, we get magnesium chloride and water with the evolution of carbon dioxide gas. (iii) Nitric acid reacts with calcium hydroxide and forms calcium nitrate and water (iv) Sodium bicarbonate decomposes to give sodium carbonate, carbon dioxide and water (v) Sodium chloride reacts with water to give sodium hydroxide, hydrogen gas and chlorine molecule. (vi) Aluminium metal reacts with sulphuric acid to give Aluminium sulphate and Hydrogen gas. Q11. Select combination reaction, decomposition reaction and displacement reaction from the following chemical reaction: (i) C + O CO (ii) NaBr + AgNO AgBr + NaNO (iii) CaCO CaO + CO (iv) HS + Cl 2HCl + S Q12. What change in colour is observed when white silver chloride is left exposed to sunlight? State the type of chemical reaction in this change. Also write the equation. Q13. Solid CaO was taken in a container and water was added slowly to it a) State the two observations made in the experiment. b) Write the name and chemical formula of the product formed. Q14.What changes in the colour of iron nails and copper sulphate solutions do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes? Q15.(a)What is corrosion? Give three example of corrosion. How can we prevent it? (b)What is rancidity? Write different methods of preventing rancidity. Q167. What is oxidation reaction? Give an example of oxidation reaction. Is oxidation an exothermic or endothermic reaction? Q17. An aqueous solution of metal nitrate P reacts with sodium bromide solution to form yellow precipitate 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. Q18. A water insoluble substance X on reacting with dilute H2SO4 released a colourless and odourless gas accompanied by brisk effervescence. When the gas was passed through water, the solution obtained turn blue litmus red. On bubbling the gas through lime water, it initially became milky and the milkiness disappeared when the gas was passed in excess. Identify the substance X and write the chemical equations of the reaction involved. Q19. The three test tubes A, B and C contain iron nails. In A there is water covered with oil. B contains iron nails in water present in half of the test tube. C contains iron nails, anhydrous calcium chloride and no water. In which test tube rusting will take place and why? Q20. A grey coloured metal X is used in making dry cell. It is also used for coating iron metal to prevent it from rusting. When granules of X are added to blue solution of compound of reddish brown metal Y the colour of solution gets discharged and metal Y is formed. Identify X and Y. Write the chemical reaction and identify the type of reaction. APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT-2 BIOLOGY Answer the following questions in biology notebook. I. Short answer type: Name the following- 1. product and byproduct of photosynthesis. 2. the products of photolysis of water. 3. the end products of light dependant reaction? 4. site for light and dark reaction. 5. biochemical form the photosynthate moves in phloem tissue? 6. example of two plants and two animal parasites. 7. the three secretions of gastric glands. 8. the sphincter which regulates the exit of food from the stomach. 9. the site of anaerobic and aerobic respiration in a cell. 10. the simplest digestive product of carbohydrate, fats and protein? 11. the main carrier of oxygen and carbon dioxide in man. 12. the food component whose digestion produces nitrogenous waste? II . Answer in about 50 words: 1. What is the similarity between chlorophyll and haemoglobin? 2. What are 4 factors that affect photosynthesis? 3. What are chemotrophs? 4. Plant cells contain both chloroplasts and mitochondria. Explain why are these two organelles essential for a plant's well-being. 5. .What is the difference between digestion of heterotrophs and saprotrophs? 6. Name the enzyme present in saliva, what is its role in digestion? 7. What is significance of peristaltic movement in oesophagus ? 8. What is the function of mucus in gastric gland? 9. Give the functions of hydrochloric acid for the body. 10. What is the role of pepsin in stomach? 11. Why is pancreas called mixed gland? 12. Give two functions of bile juice, from which organ it is released? 13. Name any three important enzymes of pancreas and the food component on which they act. 14. Where from intestinal juice come to the small intestine? What is the function of intestinal juice? Why are intestinal villi highly vascular? What is the function of anal sphincter? 15. Why do we get muscle cramp after vigorous exercise? 16. Distinguish between lactic acid and alcoholic fermentation? 17. What is the function of mucus and fine hair in nostrils? 18. Give the function of network of capillaries outside alveoli. APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT-3 PHYSICS Q1. Define the term electric current. Q2. Define the term resistivity of a material. Q3. How is a Voltmeter connected in the circuit to measure the potential difference between two points? Q4. You have two metallic wires of resistances 6 ohm and 3 ohm. How will you connect these wires to get the effective resistance of 2 ohm? Q5. If the distance between two electric charges is doubled, how much will the force exerting between them change to? Q6. State Ohms law. The resistance of a conductor is 1. What is meant by this statement? Q7. Why are coils of electric toaster made of an alloy rather than a pure metal? Q8. Why is the series arrangement not used for domestic circuits? Q9. A wire of resistivity r is stretched to double its length. How does it affect the (a) resistance (b) resistivity Q10(a) Which has more resistance: 100W bulb or 60W bulb? (b) A wire of resistance 5W is bent in the form of a closed circle. What is the effective resistance between the two points at the end of any diameter of the circle? Q11 You have two metallic wires of resistances 6 ohm and 3 ohm. How will you connect these wires to get the effective resistance of 2 ohm? Q12: A torch bulb has a resistance of 1 when cold. It draws a current of 0.2 A from a source of 2 V and glows. Calculate (i) the resistance of the bulb when glowing and (ii) explain the reason for the difference in resistance. Q13. An electric heater is used on 220V supply and takes a current of 3.4 A. Calculate (a) Its power and, (b) Its resistance, when it is in use. Q14. Which consumes more energy a 250W TV set in 1 hour or 1200W toaster in 10 minutes? Q15. The length of wire is doubled. How is its resistivity affected? Q16. Two wires of equal lengths, one of copper and other of manganin (an alloy) have the same thickness. Which one can be used for electrical heating devices? Why? Q17. What is the highest and lowest total resistance that can be secured by combination of three coils of resistance 2, 3 and 5? Q18. An electric iron of resistance 10 takes a current of 15 A. Calculate the heat developed in 2 minutes. Q19. (a) What is the shape of the graph obtained by plotting potential difference applied across a conductor against the current flowing through it? (b) What does the slope of this V-I graph at any point represent? Q20. i) A wire is 2.0m long, 0.2 mm in diameter and a resistance of 10 ohm. Calculate its resistivity of its material. ii)What is SI unit and commercial unit of electrical energy? Give relation between them. iii) An electric lamp is marked 20W, 220V. It is used for 10 hours daily. Calculate (a) its resistance while glowing, (b) No. of units consumed every day APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT NO.1 Real Numbers APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT NO.2 Polynomials APEEJAY SCHOOL, SAKET SESSION: 2017-18 ASSIGNMENT NO.3 Pair of Linear Equations in Two Variables


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