Academic Session

Transcription

1 HOLIDAY HOMEWORK DECEMBER 2017 GRADE VIII Academic Session Dear Parents, The long awaited winter vacation is here, bringing with it the gift of togetherness that is spent in exploring books, watching informative programmes and playing games with your wards. While fun is intrinsic to their age, fruitful occupation of their time is vitally important to pave the way towards a progressive learning graph. Some Pointers: - Free play time should alternate with structured games-this cultivates sportsmanship. Assign a permanent workplace and a work time, this brings in system and discipline into the child s life. Inculcate good manners, healthy habits and respect for elders. Never ever compare or hurt their pride as it will stunt their confidence.

2 We are giving a short assignment for the vacation. We have tried to make the work enjoyable, keeping in mind their interest. Space out the work & the child will enjoy doing it. Enjoy your holidays with your children! ENGLISH HAPPY HOLIDAYS!!! I. Read the book prescribed and given to you during the Reading Program. Your reading should prepare you for a group discussion based on the book. [The students who could not attend the reading program and hence did not get the book, will get it and read it, once they are back in school.] Read the book The Count of Monte Cristo and write a review on it. The following points need to be covered- a. When and by whom was it written? b. Basic story line. c. Which character of the story appeals to you most and why? d. Write down 35 new words and find their meanings 3. Mr. G. Rhydian Morgan conducted a very fruitful workshop on debating and public speaking skills in the school. His videos and talks on the same topic are available on You Tube. Have a good look at his videos and some other videos/reading material available on this topic. Prepare 10 points that you find to be most useful or interesting. MATHEMATICS A pescribed workbook TRY OUT MATHS-8 is given to you. Do the exercises based on the topics below. General instructions: Use a thin single line notebook, to show the working and steps wherever required. Write the answers in the workbook. Do the entire assignment very neatly and in a presentable manner. Marks will be alloted. Topics: 1. Quadrilaterals 2. Parallelograms 3. Data Handling 4. Bar Graphs 5. Pie Charts 6. Probability

3 SCIENCE [Please note: Answers to be written in the worksheet and the same to be submitted. Attempt minimum 6 questions from each section.] Name: Grade PHYSICS 1. Name the force used in removing iron scrap from a heap of mixed scrap. 2. When is the pressure on the ground more when a man is lying or when a man is standing? Explain. 3. You can fill a bucket from a tap downstairs quicker than from a tap upstairs. Why? 4. Why do mountaineers suffer from nose bleeding at high altitudes? 5. Trucks and buses have double tyres in the rear end. Why? 6. Why do deep-sea divers have to wear special suits for diving?

4 7. Why is it easier to hammer a sharp nail into wood than a blunt one? 8. Why does a balloon stick to the wall after it is rubbed on polythene? 9. State the type of force acting in the following conditions- (a) Lifting a school bag. - (b) Bullocks ploughing the field (c) Attraction of paper bits towards a comb. (d) Attraction of iron nails towards a magnet. (e) Stopping a goal by a goalkeeper. (f) Coming downwards of the object even when it is thrown upwards. 10. An elephant weighing 50,000 Newton stands on one foot of area 1000cm 2. What is the Pressure exerted on the ground?

5 CHEMISTRY Q1. Decide whether or not the following reactions are possible (use reactivity series to help you) 1. Copper + zinc sulphate copper sulphate + zinc 2. Iron + gold nitrate iron nitrate + gold 3. Potassium + copper sulphate potassium sulphate + copper 4. Iron + lithium sulphate iron sulphate + lithium Q2.Complete the following word equations: 1. Magnesium + silver nitrate + silver 2. Aluminium + aluminiumsulphate + copper 3. + copper sulphate zinc sulphate + copper 4. Iron + lead nitrate iron nitrate + Q3.Write your own word equations for the following reactions: a. Zinc and copper sulphate b. Magnesium and silver nitrate c. Potassium and zinc nitrate d. Gold and copper sulphate Q4. Explain why aluminium and potassium nitrate will not react when mixed together.

6 Q5. Three metals X, Y and Z have the following reactions:- a. Y will displace X from a solution of its salt. b. Z will displace both X and Y from solutions of their salts. c. Place the three metals in order of reactivity, starting with the least reactive. Q6. Here is a list of metals in order of decreasing reactivity. Q and R are mystery metals. K > Q > Ca > Mg > Al > Zn > R > Fe > Cu a) Will Q react with cold water? b) Will R react with cold water? c) Will R react with dilute hydrochloric acid? d) Will R displace copper from copper sulphate solution? Q7. Explain why Sodium is more reactive than Magnesium and Aluminium. Q8. When an acid reacts with a base, a neutralisation reaction occurs, producing a salt. Using the following equation, name the salts that are produced in the acid-base reactions. acid + base salt a) hydrochloric acid + ammonia b) nitric acid + sodium hydroxide c) phosphoric acid + potassium hydroxide Q9. Explain thermite reaction. How is it useful?

7 Q10. Use the periodic table to find the number of protons, neutrons, and electrons for atoms of the following elements. Name of Element Element Symbol Mass Number Atomic Number Protons Neutrons Electrons Boron B Sodium Gallium H 0 Carbon 12 N 7 Calcium Si 14 Argon 18 Mg 12 12

8 BIOLOGY 1. Name the following: a. Male reproductive part of flower b. Female reproductive part of flower c. Structure containing male gametes in a flower d. Structure containing ovules e. Modification of leaf used by climbers and creepers 2. List 4 modifications that desert plants have developed in order to survive. 3. List 4 modifications polar bears have evolved order to brace the harsh conditions of the Polar Regions. 4. How do we inherit certain features such as hair colour from our parents?

9 5. What are some of the ways to track two tigers in a forest reserve, so that you can understand their eating habits and territorial boundaries? 6. What are some of the steps that can be undertaken in order to preserve a falling population of tigers in a forest reserve? 7. Respiration is a process without which life will cease to exist. Justify the statement.

10 8. Photosynthesis is essential to all life on earth - Justify the statement. Be sure to include the following keywords in your answer: food web, food chain, primary consumers, and secondary consumers. 9. Oceans are teeming with life. Why? 10. Sharks and crocodiles are called living fossils. Why?

11 GEOGRAPHY: [use a separate map for each question: a, b, c] On an outline Map of India: a. Using different colour pencils mark the different soil types and make an Index on the map differentiating the soil distribution. b. Using different colour pencils mark the Natural vegetation belts and make an Index on the map differentiating the forests. c. Using different signs and symbols mark the distribution of cotton textile industry, sugar industry, iron and steel industry and make an Index on the map differentiating the distribution of the Industry. On an outline Map of the world: a. Using different colour pencils mark the different soil types and make an Index on the map differentiating the soil distribution. b. Using different colour pencils mark the Natural vegetation belts and make an Index on the map differentiating the forests. c. Using different color pencils mark the Moderately Populated and Highly Populated regions of the world. HISTORY: [use a separate map for each question: a, b, c] 1.On an outline Map of India: a. Mark and label the places where the sessions of the INC were held ( ). b. Mark and label the Centres of the Civil Disobedience Movement. c. Mark and label the important centres of the Revolt of 1857.

12 CIVICS Task 1- Make a political profile of the state you are coming from ( words). Use the pointers given below: The number of districts in the state The speaker of Vidhan Sabha (legislative assembly) Nature of state legislature (bicameral/ unicameral), total members, no of assembly constituencies Governor and Chief Minister of your state Ruling party Leader of opposition Brief history on the formation of your state. Major cities and towns in your state with their Mayors and President Research on the problems currently faced by your state and the steps taken by the state government to overcome them (health, education, law and order, environment, waste management, tourism, etc.) {*you can check your state government website for updated information*} श त क ल न ग हक र य कक ष 8 1.अपन पस द द ककनह च र स हहत र क र /कव र /कह न क र क ज न क ब र म एक अल बम त र र क जजर उनक ज न क प रम ख घटन ओ, तस र, उनक द र ललख गर प स तक स सम ब ध त ज नक ररर क क रम स ललखखए (क ल 15प ष ठ) 2.म श प र मच द द र ललखखत ककस एक कह न क पढ़कर उसक स र श अपन शब द म ललखखए 3. हह द म ह र -क ष स प रततहदन प च नए म ह र ललखकर र द क जजर और क र बन इर [minimum 20]