ASSIGNMENT WORKSHEETS FOR CLASS 8

assignment worksheets for class 8 note: ... tapped. e.) the three examples ... answers . doon public school, paschim vihar science worksheet - 1...

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ASSIGNMENT WORKSHEETS FOR CLASS 8

NOTE: Solve the following worksheets separately on different pages.

DOON PUBLIC SCHOOL, PASCHIM VIHAR Social Science Worksheet Class 8 RESOURCES Q1.)Fill Ups: a.)___________ is an object that is useful in making the life of human beings comfortable. b.)The three broad types of resources are _______ , _____________and __________. c.)Natural resources can be classifies on the basis of __________ , __________and __________. d.)___________ , __________ and ________ energy are the potential resources waiting to be tapped. e.)The three examples of renewable resoures are________ ,______________ and ____________. f.)Chipko andolan was a mass movement against ____________ that started in the early 70s in _________. g.)A sound understanding and utilization of resources can pave the way to ____________ development. Q2.)Define: a.)Resource

b.)Biotic resources c.)Abiotic resources d.)Geothermal energy

e.)Conservation Q3.)List down the various alternatives to conserve the natural resources?

Political Science The Constitution and the need for Laws Q1.Name the largest constitution of the world. Q2.Why do we need laws? Define the word Dissent? Q3.What is Dowry Prohibition act, 1961? Q4. Describe the Salt Satyagrah of 1930. Q5. Name six fundamental rights. Q6.Name eleven fundamental duties. Q7. What do you understand by ‘Rule Of Law”?

DOON PUBLIC SCHOOL, PASCHIM VIHAR SOCIAL SCIENCE WORKSHEET Chapter. 1:- The Indian Constitution 1) What do you understand by the word Constitution? 2) Discuss various key features of Indian Constitution (Five features) 3) Define and discuss the word ‘Federalism’. 4) Discuss the Parliamentary form of Government. 5) Discuss the three organs of the Government. 6) Define Fundamental Rights. Make a list of it. 7) Write a short note on the word ‘Secularism’. 8) If my neighbor employs a child below 14 years of age to work as a domestic ser vant, he/she is violating which Fundamental Right?

DOON PUBLIC SCHOOL, PASCHIM VIHAR MATHS WORKSHEET Topic : Square, Square Roots, Cube and Cube Roots

1. Using prime factorization method, find which of the following numbers are not perfect squares : a) 400 b) 768 c) 1296 d) 8000 e) 9025 2. Find the smallest number by which each of the given numbers must be multiplied so that the product is a perfect square : a) 512 b) 700 c) 1323 d) 35280 3. Find the smallest number by which each of the given numbers should be divided so that the result is a perfect square : a) 180 b) 1575 c) 6912 d) 19200 4. Fill in the blanks ( Using appropriate property ) a) 172 – 162 = __________ b) 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 = _______________ c) 552 – 512 = ___________ d) For every natural number n , (n + 1 )2 - n2 = _____________ 5. Which of the following triplets are Pythagorean ? a) (10,24,26)

b) (18,79,82 ) c) (22, 120, 122) d) (14,48,50)

6. Find the square root of the following fractions : a)

25 49

b)

1225 2025

c) 0.0009 d) 0.0000049

7. Simplify : 4

81

(− √9 ) ( − √100 )

8. Find the square root of each of the following numbers by long division : a) 6724 b) 7921 c) 4556.25 d) 7903.21 9. A society collected rupees 8836, each member contributing as many rupees as there were members. Find the number of members of the society ? 10.Find the least number of six difgits which is a perfect square ?

11. Find : √10 + √25 + √108 + √154 + √225 12. Find the square root of each of the following numbers correct to 2 decimal places: a) 175.01 b) 5893.27 c)

13

d) 83

11

7 11

13. What is the smallest number by which 675 should be multiplied so that the product is a perfect cube ? 14. What is the smallest number by which 2916 should be divided so that the quotient is a perfect cube ? 15.Find the cube roots of the following numbers by prime factorization method : a) 2744 b) -729 c)

−3375 4913

23

d) 5

64

16. Find the largest four digit number which is a perfect cube ? 17. What should be subtracted from 6249 to get a perfect square number ? 18.

2707 √𝑥

= 27.07 ,then x equals to ______________

DOON PUBLIC SCHOOL, PASCHIM VIHAR English Grammar Worksheet - VERBS I Complete the following sentences using an appropriate verb form. 1. He ………………… before I …………………. his place. a) left, reached b) had left, reached c) have left, reached d) left, had reached 2. The young widow always …………………… white clothes. a) wear b) wears c) was wearing d) would wear 3. I ………………….. to quit my job. a) decided b) have decided c) had decided d) was deciding 4. I ……………………… never forget what you just ………………………. me. a) will, told b) would, told c) had, told d) will, tell 5. I …………………….. him and he …………………. at once. a) called, came b) would call, will come c) call, comes d) have called, came 6. When we …………………. the station, the train ……………………. already left. a) would reach, had b) reached, had c) reach, had d) reach, would 7. The tomatoes …………………… picked when they were ripe. a) are b) were c) were being d) are being 8. The national anthem …………………. after the performance.

a) is sung b) was sung c) would sing d) had sung 9. The criminals ……………………… arrested. a) is b) have been c) were been d) had been 10. Many people …………………….. in the explosion. a) was killed b) is killed c) were killed d) have killed II. Complete the following sentences using appropriate simple present or simple past tense form of verbs. 1. He --------------------- he is above playing with us. (think) 2. She ----------------------- two pounds an hour. (earn) 3. The plants --------------------- in the absence of water. (die) 4. He --------------------- English with an Irish accent. (speak) 5. The cold weather ---------------------- my health. (affect) 6. They ----------------------; they always agree. (not quarrel) 7. Fatty foods ---------------------- with me. (not agree) 8. The teacher ------------------------ them an hour for their painting. (allow) 9. Smoking -------------------- (not allow) 10. The twins -------------------- alike. (look) 11. You alone --------------------- my secrets. (know) 12. He ----------------------- his fortune amongst his three children. (divide) III. Complete the following sentences using appropriate present continuous tense forms of verbs. . 1. Rahul ------------------ (do) his homework. 2. Meera --------------------- (learn) her lessons. 3. The boys --------------------- (play) in the garden.

4. The girls -------------------- (dance). 5. I ---------------------- (type) on the computer at the moment. 6. The teacher ---------------------- (explain) the lesson. 7. The students --------------------- (solve) the sum. 8. The boy -------------------- (throw) stones at the dog. 9. The blind man -------------------- (beg) for alms. 10. You -------------------- (not listen) to me. 11. They -------------------- (wait) for us. 12. I -------------------- (count) the numbers. 13. My sister ------------------- (prepare) for her exams. 14. The birds -------------------- (sing). 15. You -------------------- (cause) me a great deal of distress. IV. Complete the following sentences using appropriate present continuous tense form of verbs. 1. Rahul ------------------ (do) his homework. 2. Meera --------------------- (learn) her lessons. 3. The boys --------------------- (play) in the garden. 4. The girls -------------------- (dance). 5. I ---------------------- (type) on the computer at the moment. 6. The teacher ---------------------- (explain) the lesson. 7. The students --------------------- (solve) the sum. 8. The boy -------------------- (throw) stones at the dog. 9. The blind man -------------------- (beg) for alms. 10. You -------------------- (not listen) to me. 11. They -------------------- (wait) for us. 12. I -------------------- (count) the numbers. 13. My sister ------------------- (prepare) for her exams. 14. The birds -------------------- (sing). 15. You -------------------- (cause) me a great deal of distress.

DOON PUBLIC SCHOOL, PASCHIM VIHAR FRENCH WORKSHEET Leçon-2 Q1) Remplissez les blancs par l’adjectif possessif a) Moi et Sylvie, nous aimons beaucoup nouveau jardin b) Marc et Mia parlent avec cousines et oncle c) La famille de Manuel adore travail d) Toi et Sophie, vous ne visitez pas tante ? e) J’aime famille beaucoup Q2) Remplissez les blancs par l’adjectif démonstratif a) livre a une bonne histoire b) homme parle à enfants c) J’aime beaucoup actrice d) Les aiguilles de horloge sont noire e) étudiante est très intelligente Q3) Traduisez en anglais a) Acier b) Cuir c) Fer d) Or e) Soie f) Le porte feuille g) La Cravate h) Les chaussures i) Le gant j) Les bottes Q4) Conjuguez les verbes suivantes : a) Finir b) Aller c) Etre d) Avoir e) Regarder

DOON PUBLIC SCHOOL, PASCHIM VIHAR COMPUTER WORKSHEET Class-8 Lesson -5 I. Fill in the blanks. 1) The __________is used for creating a new row. 2) _________ tag is used for inserting a image into your webpage. 3) The_________ tag is used for creating hyperlinks. 4) ____________is a moving text that scrolls across the web page. 5) The___________ is the distance between cell boundary and its content in a table. 6) ________________is a highlighted piece of text or graphic used for linking two or more documents. 7) _______list is created within another list. 8) _______ tag along with the ____ tag is used for creating an ordered list. II. Answer in True/False. 1) The TH tag is used for creating new table headings. 2) Src is an attribute of img tag.. 3) TR, TD and TH are the attributes of table tag . 4) The “block quote” tag is used to display a text as a separate block. 5) Email links are called “mailto” links. 6) Hr tag is used to insert a line break. 7) Standalone tags don’t require ending tags. 8) HTML is hypertext markup language. III.MCQs 1) Which attribute of img tag is used to give an alternative message? a) src b) alt c) align

2) Each list item in an ordered list is created by: a)
  • tag b)
      tag c)
        tag 3) ____tag is used for creating hyperlinks. a) Anchor tag b) href c) html 4) _______attribute of tag is used to specify location of an image? a) src b) alt c) bmp 5) Which tag helps to create a header in a table? a) td b) tr c) th IV. Answer the following questions a) What is an ordered and unordered list? b) What is the use of
        tag ? c) What is an email link? How we can create it? d) What is a marquee and how you can create it? e) What is html? Explain with an example. f) What is a table tag and how you can create it? ANSWERS

        DOON PUBLIC SCHOOL, PASCHIM VIHAR SCIENCE WORKSHEET - 1 Name of the Student: ___________________________ Chapter: Friction I.

        Answer in one word or in a few words 1. What is the force that opposes the motion of a body called? 2. Is force of friction a scalar or vector quantity? 3. What is the direction of force of friction? 4. What is the science that deals with reducing air resistance called? 5. Which type of friction has magnitude – (a) The Maximum (b) The Minimum 6. Which device converts sliding friction in to rolling friction? 7. Give two examples from nature where their body is streamlined. 8. The tyres of racing car are smooth. What are these called? 9. What is the process of applying oil or grease in the parts of machines called? 10. What is force of friction commonly referred as?

        II.

        Answer in brief 1. State the factors on which magnitude of friction depends. 2. A ball is made to roll with same force ona) A Muddy surface b) A wooden surface c) A polished tiled surface Is the distance covered by the ball in each case same? Why? 3. What is drag? How can drag be reduced? 4. Ramesh sprinkled some Boric Powder on Board before plying game of carrom. Why? 5. Parts of machine are regularly oiled or greased. Why? What is this process called? How does it help? 6. On what principle do Ball Bearings work? Where are they used? How do they help? 7. What prevents vehicles from skidding on road during rainy seasons? How? 8. In floor mills the grinding machines are switched off periodically. Explain why? How does this help? 9. Airplanes, Ships, Rockets, Boats etc are made narrow in front. Why? What is the shape called? How does this help? 10. Explain with two examples – where it is desirable to increase magnitude of friction.