NOTE: Homework of all subjects should be submitted on

28th June,2018 to the class teacher in their respective classes

between 8:30am to 10:00am

ENGLISH

1 Answer the following questions on ruled sheets and place them in a folder: (Word limit 100-120 words)

a) You are Aradhana/ Arvind of 23/47, Defence Colony, New Delhi. You observe that urban school children

are having sedentary habits and regularly eat fast food , both of which are harmful to health as they cause

obesity and develop diabetes in young persons. Write a letter to the Editor of a national daily suggesting what

changes should be done in their diet and habits so that they maintain good health.( 100-120 words)

b) You are aware that antibiotic medicines have many unwanted harmful side effects. However, the Ayurvedic

system of medicine is not having such problems. Write a letter to the Editor of The Times of India , New

Delhi, advocating people to adopt the Ayurvedic system of medicine for curing their diseases. You are Binod/

Bhanumati of 214/A, Mayur Vihar, Delhi. ( 100-120 words)

c) You are Sunil/ Sunita, Incharge of Junior Science Laboratory of ASN Public School, Shalimar Garden ,

Ghaziabad. Write a letter placing an order on M/s Surya Laboratory Equipment, new Delhi, for various

apparatus/equipment (at least 5 items) used in your laboratory.

d) You want to go for vocational education in a technical trade after completing your class X examination

because you are from a poor family and want to take up a job as soon as possible to support your family. You

have seen an advertisement in the classified section of a newspaper by a private ITI offering technical grades.

Write a letter of enquiry to the Principal of the ITI asking for their brochure and other details of courses. You

are Ronit/ Reena of 216/A Preet Vihar, Delhi.

e) As a heath conscious person, you noticed an advertisement in the newspaper on yoga classes in your

neighbourhood. Write a letter in about 100-120 words to the organizers enquiring about the duration of the

course and other relevant details. You are Rajesh/ Rajeshwari of 42/C Ashok Vihar, Delhi.

f) Write an article on ‘Go Solar :Save Environment in 100-120 words. You are Mehul/Neha.

g) Our country has a rich biodiversity, Though destruction of forests for human motives has had a disastrous

effect on mankind, we can still secure our tomorrow. Write an article on forest and wildlife conservation .You

are Nitesh/ Mridula.

2 Revise the entire syllabus of Test Series to be conducted in June.

3 Complete and paste Grammar based worksheets (given at the end) in the Grammar register.

4 Read any one of the following novels and write its critical analysis on an A4 sheet placed in a folder.

a) The Guest by Mitali Meelan

b) The Windfall by Diksha Basu

c) The Palace of Illusions by Chitra Banerjee Divakaruni

5 Read the novel ‘The Story of my Life’ as prescribed in the syllabus. (Ch1 to 23)

WORKSHEET-1

1. Read the conversation and then report the paragraphs that follow.

i) Rama: I am going to jungle.

Sita: Why?

Rama: I have been banished for fourteen years by father.

Sita: Oh! It is very sad. Can I go with you?

Rama: No. Stay at home to take care of my old parents.

On being banished by his father, King Dasharath, Rama told Sita (a)_____________. She asked him

(b)____________. Rama told that (c) __________________.Sita exclaimed saying it was very bad and asked

Rama (d)_______________________. Rama asked her to stay at home to take care of his old parents.

ii) Anita: What do want to do this morning?

Prakash: I feel like taking a walk. It’s so nice outside.

Anita: Great, let’s walk around the lake in the park.

Prakash: It’s really rocky here.

Anita: Yes, watch your steps so you don‘t trip.

Anita asked Prakash (a) _________. Prakash answered that he (b) ______ . It was so nice outside. Anita agreed

to this and suggested (c) ____________. Then Prakash observed that (d) ____________. Anita cautioned him to

watch his steps.

iii) Grasshopper: O ant, give me some grain. I am dying of hunger. When did you get the corn?

Ant: I collected it in summer. What were you doing in summer? Why did you not store some corn?

Grasshopper: I was too busy.

Ant: What were you doing?

Grasshopper: I was singing all day.

Ant: Go! Dance all winter. You don’t deserve any help.

A grasshopper appealed to an ant a)_________________. He said b)___________and asked her

c)_______________.The ant replied d)_______________________and wanted to know e)________________.

She further asked him f)___________________The grasshopper bragged g)_________________________.

The ant again enquired h)_____________________. The grasshopper answered i)__________________ .

The ant felt annoyed and told him j)___________________. She declared k)___________________any help.

2. The following passages have not been edited. There is an error in each line. Write the incorrect and

correct words:

INCORRECT CORRECT

i) A rainy day in summer bring relief to all a)___________ ___________

human beings and also to animal. b)___________ ___________

A farmer welcome the rain because c)___________ ___________

it gives new life for his crops. Children d)___________ ___________

come out to play on the overflowing streets. e)___________ ___________

They splash water. Elders took tea and gossip f)___________ ___________

in a cool breeze. Birds also welcome the g)___________ ___________

first showers. Butterflies drown them in h)___________ ___________

muddy water. Everyone are in a happy mood. i)___________ ___________

ii) The pump, one of the most new a)___________ ___________

pain management techniques now

available, implies pain –killing drugs b)___________ ___________

in the body. Studied but practiced as c)___________ ___________

a superspecialised branch in medicine, d)___________ ___________

pain management offers relief for e)___________ ___________

patients assailed in severe pain. f)___________ ___________

The perception of pain different from g)___________ ___________

person to person. Keep in mind the h)___________ ___________

differences, pain clinics use detail i)___________ ___________

assessment methods for pain relief.

2 In the following passages one word has been omitted from each line. Write the missing word along

with the word that comes before and the word that comes after it.

BEFORE MISSING WORD AFTER

i) All animals need protect themselves. a) _________ __________ __________

Some have clear ways of escaping their enemies. b) _________ __________ __________

Many animals are fierce that they are hardly c) _________ __________ __________

ever attacked. But there many peaceful creatures d) _________ __________ __________

which need armour protect themselves. e) _________ __________ __________

Pangolins, for example, ‘jointed armour’. f) _________ __________ __________

They move quite easily and when g) _________ __________ __________

they are danger, they can roll up into a ball. h) _________ __________ __________

It is very difficult unroll a pangolin in i) _________ __________ __________

this position as the scales have sharp edges.

ii) APJ Abdul Kalam was born a middle class Tamil a) _________ __________ __________

family. He was one many children. He was b) _________ __________ __________

a short boy rather undistinguished looks c) _________ __________ __________

born to tall handsome parents. They lived d) _________ __________ __________

in their ancestral house, was built in the e) _________ __________ __________

middle of 19th century. It was a fairly large f) _________ __________ __________

house on the Mosque Street Rameshwaram. g) _________ __________ __________

His austere father used avoid all unnecessary h) _________ __________ __________

comforts and luxuries, but childhood was quite i) _________ __________ __________

secure one.

4 Rearrange the following words and phrases to form meaningful sentences:

a) sedentary/lifestyle/habits/to/modern/has/led

b) paralytic/attack/is/prolonged/main/cause/high/of/the/blood/pressure

c) vocal cords/and/tongue/lips/affected/people/can/communicate/either/limbs/with/a/with/stroke/paralytic

d) answer/to/can/some/eyes/their/blink/even

e) nervous system/voluntary/the to/extensive/due to/damage/impossible/but/in/few/a/even/a/gesture/small

f) identified/anthrax/researchers/destroy/have/way/to/a/new

g) officials/a hand-held/bacteria/the/method/device/allows/to/detect/with

h) bacteria killers/naturally/the/technique/bacteriophages/based/is/on/occurring/known as

i) technique/this/infections/in/a/help/few/years/may/fight/difficult/treat/to

j) crowded/railway platform/last/the/Sunday/unusually/was

WORKSHEET-2

1. The following passage has not been edited. There is one error in each of lines. Write the incorrect

word and correction against the correct blank number.

Incorrect Correct

a) Children love picnics and outings of their parents, a) _________ _________

though they are equally happier doing things with b) _________ _________

them around the house. A parent may make c) _________ _________

his child feel special by adopting some simple d) _________ _________

rituals. Bedtimes stories, the game of cards or e) _________ _________

simply talking and laugh together before going f) _________ _________

to bed. Some give children a wonderful sense g) _________ _________

of well-being.

b) The giant’s heart melted than he a) ___________ ___________

looked out. He thought much selfish he b) ___________ ___________

had been! He went into the garden but c) ___________ ___________

called the children. The children then d) ___________ ___________

saw him, ran away. Then the giant e) ____________ ___________

did not lose heart. He saw a child which f) ___________ ___________

could not run.

c) One day, the king call a) __________ ____________

his minister and said him b)__________ ____________

that he want the length c)__________ ___________

and breadth from the whole earth d) __________ ___________

measured. He also want to e) __________ ___________

have the stars on the whole f)___________ ____________

sky to be counted.

Q2. Rearrange the following words to form meaningful sentences:-

a) of/ India’s/ Dehradun/ beautiful/ stations/ hill/ is one/most

b) popular/video/youngsters/among the/ games/ are very

c) sports/building/physical strength/necessary/are/for.

d) the dog/every morning/the old man/for a walk/takes.

e) peak/Mount Abu/the highest/in/the Aravelli/is/mountains

f) great men/its/are/decorated/walls/pictures/of/with.

g) he thief/as soon as/ran away/he/the police/saw.

h) she/arrival/on her/a warm welcome/was given.

i) those/who/help/God/themselves/helps.

j) the watchman/the stranger/did/with a stick/hit/why?

k) the temple architecture / form an / the sculptures and paintings / of / essential part.

l) is / situated in / the Konark temple / dedicated to / north-eastern corner of Puri. / the Sun God

Q3. Complete the following conversation using Reported Speech:-

a) Customer: Can I have a small bottle of tomato sauce?

Shopkeeper: Sorry, I have only big bottles.

Customer: When will it be available?

Shopkeeper: I can give it to you tomorrow.

Customer: Thank you, then I will get it tomorrow.

The customer asked the shopkeeper (a) …………………….. . The shopkeeper said that he only had big bottles

of tomato sauce. The customer wanted to know (b) …………………….. The shopkeeper said that (c)

…………………….. .. The customer thanked him and said that (d) …………………….. .

b) Karan : Are you going to attend Vikram’s birthday party?

Rohit : I am not sure if my mother will permit me to go.

Karan : You can tell your mother that all of us are going to the party.

Rohit: She knows that all my friends are going, but she also wants me to do well in tomorrow’s English

cycle test.

Karan asked Rohit (a) __________ . Rohit replied that(b)___________ him to go. Karan advised Rohit

to(c)__________ going to the party. Rohit told Karan that his mother was aware that all his friends were

going but (d)________.

c) Sonu- What makes you weep?

Rohan-Someone has stolen my wallet.

Sonu- Where did you keep it?

Rohan- In the back pocket of my trouser.

Sonu asked Rohan (a)______________. He replied that someone (b)____________________. Next, Sonu

enquired (c)_______________. Rohan said that he had kept it (d)_______________

d) Ajay- Do you want to play with us?

Mohan- Yes, But I have been too late.

Ajay- It doesn’t matter, come in the ground.

Mohan- Thanks

Ajay asked Mohan (a)_______________. Mohan replied him in positive and told that (b)___________.

Further Ajay said that (c)____________ and advised him to come in the ground. Then Mohan

(d)____________.

Q4. Fill in the blanks using correct form of Verb.

a) Three months ago, a young man from Punjab a) ………….. (decide) to go to Canada. He was b) ………..

b) ( refer) to an agent in Delhi. The agent c) …………. (tell) him that he d) ……….. (will) have to pay

Rs. seven lakh for his journey. The young man e) …………..

( agree) to pay the amount. The agent f) …………… (demand) some advance which he paid.

c) Both Rajesh and Radha _______ (be) great friends. One of their classmates Sonalika ______ (be)

a common friend of theirs. The three ________ (make) a very good friendship trio which ________ (be)

known as terror triangle. “ All three of us _________ (be) a close knit group. When anyone of us ___ (be)

a quarrel with other students the other two __________ (come) to his/her rescue. None of us ________(be)

ready to listen anything against the other two. Such _________(be) our friendship”, they say.

d) Dangers ______ (be) growing in cyberspace. Not only _____(be) the thieves learning to illegally draw

millions of credit card numbers but elaborate pieces of malware __________ (be) capable of spying on whole

organisations. The new spyware _________ (be) not resemble the evasive bits of code that scoop up credit

card data. Although the US military ____(be) standing upto major cyber effort, private sector networks in the

nation _______(be) overly exposed.

MATHS

Assignment is to be done in A4 sheets

1. For two positive number a and b , then exists two unique numbers q and r such that : (a)a=bq+r,

r>0 (b)a=bq+r;0<r>b (c) a=bq+r, 0 ≤r<b (d) a=bq+r,0< r < b

2. (i) Write the conditions to be satisfied by q so that a rational number p/q a non terminating repeating

decimal expansion.

(ii) Find the value of k for which the system of equations x - ky = 2 and 3x + 2y = -5 has a

unique solution.

3. The graphical representation of the pair of equations x+2y-4+0 and 2x+4y-12=0represents.

(a)Intersecting lines (b) Parallel lines (c) Coincident lines (d) All of the above

4. If one of the zero of the polynomial 5x2+13x+a is reciprocal of the other then find value of a.

5. Write the number of real roots of the equation (x -1)2 + (x - 2)2 + (x)2.

6. If (x+a) is a factor of 2x2+2ax+5x+10, then find the value of a

7. Which of the following will have a terminating decimal expansion:

(a) 125/441 (b) 35/50 (c) 77/210 (d) 129/2257'717

8. Find the largest number that will divide 398, 436 and 542 leaving remainders 7, 11 and 15 resp.

9. Find the smallest number which when increased by17 is exactly divisible by both 520 and 468.

10. Find the Zeroes of the polynomial f(x) = 4√3x2+5x-2√3, and verify the relationship between zeroes

and its coefficient.

11. Find the values of a and b for which the equations has infinite solution.

2x-3y = 7; (a+b) x - (a+b-3)y = 4a+b

12. For what value of q and p the given system of equation has infinite solutions

(2p-10) x -3y-5 = 0

3x+ (q-2) y – 3 = 0

13. Find the value of k for which the system of linear equation

2x+5y = 3 and (k+1)x +2(k+2)y = 2k will have infinite solution.

14. Find the values of a and b, if the sum and the product of the roots of the equation

4ax2+4bx+3=0 are 1/2 and 3/16 respectively.

15. Solve the following pair of linear equation by substitution method .

7x+11y=3

8x+y=15

16. Solve the following pair of linear equations: 7𝑥−2𝑦

𝑥𝑦= 5,

8𝑥+7𝑦

𝑥𝑦 = 15

17. Solve the following pair of linear equation 4

𝑥+ 5y = 7,

3

𝑥+ 4y = 5

18. Solve the following pair of equation.

5

𝑥+𝑦−

2

𝑥−𝑦 = -1

15

𝑥+𝑦+

7

𝑥−𝑦 = 10 , where x+y & x-y ≠0

19. A person can row a boat at the rate of 5 km/hr in still water. He takes thrice as much time in going 40

km upstream as in going 40 km downstream. Find the speed of the stream.

20. One pipe can fill a tank in (x-2) hours and the other pipe can empty the full tank in (x+2) hours. If the

tank is empty and both the pipes are opened together, the tank is filled completely in 24. hours. Find

how much time will the second pipe take to empty the tank?

21. Prove that √17 is irrational.

22. Use Euclid's division Lemma to show that the cube of any positive integer is either of the form 9m,9m+1

or 9m+8 for some integer m.

23. The denominator of a fraction is 4 more than twice the numerator. When both the numerator and

denominator are decreased by 6, then the denominator becomes 12 times the numerator.

24. If a and b are the zeroes of the quadratic polynomial f(x)= x2+px+q, form a polynomial whose zeroes are

(a+b)2 and (a-b)2

25. If a and b are the zeroes of the quadratic polynomial f(x)= 3x2-4x+1, form a polynomial whose zeroes are

a2/b and b2/a.

26. Solve the following system of equations graphically : 2x - y =1 and x + 2y = 13. Also determine the

ordered pairs where the line cut the x axis. Hence determine the area of a triangular region so formed by

these lines with y axis.

27. Find the zeroes of the polynomial p(x) = 2x4 + 7x3 -19x2 -14x +30 if two of its zeroes are √2 and-√2.

28. If d is the HCF of 468 and 222, find x and y satisfying d = 468x + 222y. Also show that x and y are not

unique.

29. Find the zeroes of the polynomial f(x) = x3 -5x2 - 2x + 24 , if it is given that the product of its two zeroes is

12.

30. Find the values of a and b so that x4 + x3 + 8x2 + ax + b is divisible by x2 + 1.

31. The sum of a two digit number and the number formed by interchanging the digits is 132. If 12 is added

to the number, the new number becomes 5 times the sum of the digits. Find the number.

32. A and B. are friends and their ages differ by 2 years. A's father D is twice as old as A and B is twice as

old as his sister C. The age of C and D differ by 40 years. Find the ages of A and B.

33. If a motorboat can travel 30 km upstream and 28 km downstream in 7 hours, it can travel 21 km

upstream and returns in 5 hours. Find the speed of the boat in the still water and speed of the stream.

34. After covering a distance of 30 km with a uniform speed there is some defect in a train engine and

therefore , its speed is reduced to 4/5 of its original speed Consequently, the train reaches its destination

late by 45 minutes. Had it happened after covering 18 km more, the train would have reached 9 minutes

earlier. Find the speed of the train and the distance of journey.

35. The students of a class are made to stand in rows. If 3 students are extra in a row, there would be 1 row

less. If 3 students are less in a row there would be 2 rows more. Find the number of students in the

class.

36. If 𝛼 and 𝛽 are the zeroes of the polynomial a𝑥2 + bx + c, then find the value of:

(a) 𝛼2

𝛽 +

𝛽2

𝛼2 (b) √(

𝛼

𝛽 )+√(

𝛽

𝛼 ) (c) 𝛼4 + 𝛽4.

37. If 𝛼 and 𝛽 are the zeroes of the polynomial 2𝑥2 - 4x + 1, then find the value of 1

𝛼 + 2 𝛽 +

1

𝛽+ 2 𝛼.

38. Solve the following pair of equations of reducing them into a pair of linear equations.

i. 5

𝑥+ 6𝑦 = 13,

3

𝑥+ 4𝑦 = 7

ii. 𝑥 +6

𝑦= 6,3𝑥 −

8

𝑦=5

iii. 4𝑥 + 6𝑦 + 3𝑥𝑦, 8𝑥 + 9𝑦 = 5𝑥𝑦

iv. 2

𝑥+

3

𝑦=

9

𝑥𝑦,

4

𝑥+

9

𝑦=

21

𝑥𝑦, 𝑥 ≠ 0, 𝑦 ≠ 0

v. 3𝑦−𝑥

𝑥𝑦= −9,

2𝑦+3𝑥

𝑥𝑦= 5, 𝑥𝑦 ≠ 0

vi. 5

𝑥+1−

2

𝑦−1=

1

2,

10

𝑥+1+

2

𝑦−1=

5

2, 𝑥 ≠ −1, 𝑦 ≠ 1

vii. 6

𝑥+𝑦=

7

𝑥−𝑦+ 3,

1

2(𝑥+𝑦)=

1

3(𝑥−𝑦), 𝑥 + 𝑦 ≠ 0, 𝑥 − 𝑦 ≠ 0.

39. A man travels 600 km partly by train and partly by car. It takes 8h 40min, if he travels 320km by train

and the rest by car. It would take 30 min more, if he travels 200 km by train and rest by car. Find the

speed of train and car separately.

40. 8 men and 12 boys can finish a piece of work in 10 days, while 6 men and 8 boys can finish it in 14

days. Find the time taken to finish the work by 1 man alone.

41. Students were standing in a row for a mass drill, if one student is extra in a row, there would be two

rows less. If 1 student is less in a row, there would be 3 rows more. Find the numbers of students.

42. It can take 12 hours to fill a swimming pool using 2 pipes. If the pipe of larger diameter is used for 4

hours and the pipe of smaller diameter is used for 9 hours, only half a pool can be filled. How long will

it take for each pipe to fill the pool separately?

43. A train covered a certain distance at a uniform speed. If the train would have been 10 km/h faster, it

would have taken 2 hours less than the scheduled time and if the train was slower by 10 km/h, it would

have taken 3 hours more than the scheduled time. Find the distance covered by the train.

44. Solve the following equations for x and y.

7x+5y =74.

7x+1+ 5y+1 = 218

45. Determine algebraically , the vertices of the triangle formed by the lines

3x-y = 3, 2x-3y = 2 and x+2y = 8.

46. Find two consecutive positive integers , sum of whose squares is 365.

47. At t min. past 2 pm, the time needed by the minute hand of a clock to show 3 pm was found to be 3 min.

less than 𝑡2

4 min. Find t.

48. Find the quadratic equation if x = √5 + √5 + √5 + ⋯ … ∞ and x is a natural number.

49. Solve for x: 1

𝑎+𝑏+𝑥 =

1

𝑎 +

1

𝑏 +

1

𝑥 , where a, b, x, a+b+c ≠ 0

50. Find the roots of 5x+1 + 52-x = 53 +1 by factorisation method.

51. The speed of a boat in still water is 15 km/hr.It can go upstream and return downstream to the original

point in 4 h 30 min. Find the speed of the stream.

SCIENCE

PHYSICS

I. Working model (with Project Report) based on: (any one) (a) Equivalent Resistance in a series and

parallel combination. (b) Thermal / Solar / Wind / Water Energy based power plant (c) Electric

Motor/Generator.

II. Answer the following questions:

1. (a) Draw a circuit diagram consisting of a battery having 3 cells, a bulb, a closed (tapping) switch, an

ammeter to measure current & a voltmeter to find the potential difference across the bulb. (b) State

Ohm’s law. Analyzing the graph calculate the Resistance. What are the factors on which Resistance of a

conductor depends?

V(volts)

0.4 0.6 0.8 1.0 1.2

I(amperes) 0.2 0.3 0.4 0.5 0.6

2. A wire is doubled over itself. What will be the new resistance and resistivity if the original resistance is

10Ω?

3. A wire of resistance 8 Ohm is spent in the form of closed circle. What is the resistance between 2 points

at the ends of any diameter of the circle?

4. Resistance of a metal wire of length 3 m is 78 Ω at 20°C. If the diameter of the wire is 0.6 mm, what

will be the resistivity of the metal at that temperature?

5. (a ) Draw the circuit consisting of a battery of five 1.5V cells, 4ohm resistor, 12 ohm resistor, 18 ohm

resistor and a plug key. All connected in series

(b) Calculate the current passing through the above circuit when key is closed.

6. What is the (a) highest (b) lowest resistance that can be secured by combining four coils of resistance

2 Ω, 6 Ω, 10 Ω and 12 Ω

7. (a) Differentiate resistance and resistivity

(b) The ratio of resistivity’s of two materials ‘a’ and ‘b’ is 2:4, ratio of their length is 6:8 and if the

ratio of radii is 4:6. Find the ratio of resistance of ‘a’ and ‘b’.

8. What is the equivalent resistance and current through each resistor, if this combination is connected

across 10.4 V for the resistors in the figure below?

CHEMISTRY

1. What happens to idli dough when it is kept at room temperature on a summer day?

2. People living in coastal areas use plastic articles than iron articles for their day to day activities. Why?

3. The decomposition of vegetable matter in to compost is an example of what type Of reaction?

4. Which term is used to indicate the development of unpleasant smell and taste in butter and oil containing

food?

5. What color difference would you observe on burning a candle and a magnesium ribbon?

6. Ashok wanted his house to white washed. He bought 10kg quick lime from market and dissolved it in 30

liters of water. On adding lime to water he noticed that bubbles were produced and the solution becomes

hot. Give reason and name the product formed.

7. Arun took a pale green substance X in a test tube, and heated it over a flame. He observed a color

change along with evolution of two gases with the smell of burning sulphur (a) Identify X. (b) Identify

the product formed. (c) Write the equation. (d) Identify the type of chemical reaction.

8. Grey colored 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 a reddish brown metal

‘Y’, the color of the solution gets discharged and metal ‘Y’ is formed. Identify ’X’ and ‘Y’. Write the

chemical reaction and identify the type of reaction.

9. A compound ‘X’ is used for drinking has pH=7.Its acidified solution in presence of electricity undergoes

decomposition to produce gases ‘Y’ and’Z’. The volume of ‘Y’ is double than ‘Z’.’Y’is highly

combustible where as ‘Z’ is a supporter of combustion. Identify ‘X,’Y’’Z’and write the chemical

reactions involved.

10. A metal nitrate solution ‘A’ is added to reddish brown metal ‘B’. The metal present in ‘A’ is used for

making jewellery and turns black in air, very thin foils of metal are used to decorate sweets. The

compound ‘C’ formed on chemical reaction is blue in color and metal present in ‘A’ is formed. Identify

A’ ‘B’ and ‘C’ and write chemical reactions involved.

11. A solution of potassium chloride when mixed with silver nitrate solution, an insoluble white substance is

formed. Write the chemical reactions involved and also mention the type of reaction.

12. A substance X, which is an oxide of a metal, is used extensively in the cement industry. This element is

present in bones also. On treatment with water, it forms a mixture which turns red litmus blue. Identify

X and also write the chemical reaction involved.

BIOLOGY

1. What is the site of light reaction and dark reaction of photosynthesis?

2. Draw a well labeled diagram of stomata.

3. In an activity to show light is necessary for the process of photosynthesis why the leaf was boiled in

alcohol?

4. Define the terms:

a) Bolus

b) Peristalsis

c) Mastication

d) Chyme.

e) Chyle

5. What is the site of Glycolysis ?

6. Which microorganism causes dental caries? What is the other name given to dental caries?

7. Where does digestion of fat take place in our body?

8. Name the component of the blood that helps in clotting.

9. Label the diagram given:

10. Explain with the help of flow chart the double circulation in human.

11. What is the importance of haemoglobin in our blood? What is the normal haemoglobin count in an adult

male and adult female? Do infants have same haemoglobin count as that of adults? Give reason in

support of your answer.

12. Prepare a list of different individuals in your locality with their blood pressure report? Determine the

reasons of fluctuation in your data.

13. Explain of ascent of sap.

14. Differentiate between transportation in xylem and phloem.

15. Alveoli are the functional unit of lungs whereas nephron is the structural and functional unit of kidney.

Justify.

SOCIAL SCIENCE

1. PROJECT WORK

Students are supposed to choose any one of the Projects given:

PROJECT 1 – COMMUNICATION FACILITIES FOR DISASTER MANAGEMENT

1. Choose any one method of communication from various means of communication like

radio/satellite/television/ Ham radio which are used by Government departments such as the Indian

Meteorological Department to disseminate information.

2. Find out how the information is disseminated by them at various levels during disasters. Prepare a

report.

OR

PROJECT 2 – PRESSURE GROUPS AND MOVEMENTS

1. Any two Popular struggles in India

2. Social Issues

3. Mobilisation Involved

a. Issue Specific b. General or Generic

4. Evolution and spread of Movement

5. Influence of movements on politics

6. Political support

7. Impact on Democracy

Following essentials are required to be fulfilled for its preparation and submission-

1. The total length of the project report will be 15-20 pages.

2. The project report will be handwritten and credit 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 this 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 persons who have helped).

• Introduction. • Chapters with suitable headings.

• Planning and activities to be done during the project, if any.

• Conclusions (summary and suggestions or findings, future scope of study)

• Bibliography • All the photographs and sketches should be labelled and related to the theme.

• Appendix (if needed)

2. Prepare a Map file showing the following maps on an outline political map of India: (Refer to CBSE

Map List)

a) Soil Types

b) Multipurpose projects and rivers

c) Major crops: Food, Fibre, Beverage and Non-food crops

d) Important Minerals: Iron ore fields and mines, Bauxite and Mica

e) Energy resources: Coal fields and mines, Oil fields

f) Power plants: Nuclear and Thermal

3. Revise the following Chapters for Test Series:

a) Geography: Ch-1 “Resources and development”

Ch-3 “Water Resources”

b) Political Science: Ch-1 “Power Sharing”

c) Economics: Ch-1 “Development”

4. Do the Assignments given below and complete in the respective subject notebook

ASSIGNMENT

SOCIAL SCIENCE

GEOGRAPHY CH-1 “RESOURCES AND DEVELOPMENT”

SHORT ANSWER QUESTIONS (80-100 words)

1. What is Sustainable economic development? Suggest any two ways in which resources can be used

judiciously.

2. What is the main cause of land degradation in Gujarat, Rajasthan and Madhya Pradesh? How can it be

checked?

3. “India is rich in certain types of resources, but deficient in some other resources”. Do you agree. Support

your answer with examples.

LONG ANSWER QUESTIONS (100-120 words)

4. What is the relevance of Gandhian model of resource conservation in today’s world?

5. Which geographical factors are responsible for the evolution of black soil? Why is it considered the

most suitable for growing cotton?

GEOGRAPHY CH-3 “WATER RESOURCES”

SHORT ANSWER QUESTIONS (80-100 words)

1. Why is Rooftop Rainwater Harvesting important in Rajasthan? Explain

2. Examine the ill effects of industrialization and urbanization on water resources.

LONG ANSWER QUESTIONS (100-120 words)

3. Why are different water harvesting systems considered a viable alternative in a country like India.

4. Assess the ecological problems being faced due to multi-purpose river valley projects.

POLITICAL SCIENCE CH-1 “POWER SHARING”

SHORT ANSWER QUESTIONS (80-100 words)

1. What arrangements were worked out by the Belgian Government to accommodate regional and cultural

diversities.

2. Which values are associated with the idea of power sharing in any country?

HOTS (100-120 words)

3. “ Both Belgium and Sri Lanka are democracies but they follow different systems of Power Sharing”

Support the statement by giving points of differences with examples.

4. Examine the reasons behind strained relationship between the Sinhala and the Tamil communities in Sri

Lanka.

5. “Power can also be shared among Pressure groups and Political parties”. Elucidate with examples.

ECONOMICS CH 1: “DEVELOPMENT”

SHORT ANSWER QUESTIONS (80-100 words)

1. Money cannot buy all the goods and services that one needs to live well” Explain.

2. Why do people’s development goals vary? Explain with examples.

HOTS (100-120 words)

3. Distinguish between total income and average income. Which one is better indicator of economic

development and why?

4. “National Development of a country depends on the availability of public facilities”. How?

5. What is sustainable economic development? Suggest some ideas to make development more sustainable

in nature.

HISTORY CH 2: “ NATIONALIST MOVEMENT IN INDO-CHINA”

LONG ANSWER QUESTIONS (100-120 words)

1. How were Vietnamese nationalists inspired by Japan and China to set up a democratic republic? Explain

with example.

2. Describe any five steps taken by the French for the development of the ‘Mekong delta region.’

3. ‘The Ho Chi Minh Trail became advantageous to Vietnamese in the war against the US’. Support the

statement with arguments.

4. How did Paul Bernard argue in favour of economic development of Vietnam? Explain.

HOTS (100-120 words)

1. There are two broad opinions on the new education policy by French in Vietnam? Discuss.

2. “The peace negotiations in Geneva followed the division of Vietnam that set in motion a series of events

that turned Vietnam into a battlefield”. Analyse the statement with arguments.

3. How did nationalism emerge in Vietnam through the efforts of different sections of society to fight

against the French?

4. Schools became a place for cultural battles in Vietnam. Highlight the resistance against French

domination.

HINDI

(1) वयाकरण दरशिका (रिमनरिखित अभयास कारि पसतक म ही करिा ह |)

अपरित गदााश - पषठ सखया -18 स 20

समास- -पषठ सखया -231 स 233 (परशन 1,2)

महावर - पषठ सखया -263 स 264

(2) समाचार पतर म रदए रहादी क कोई 20 अििर रवजञापिो ा का सागरह करक एक पारिका (Scrap

book) तरार कीरिए |

(3) रिमनरिखित रवषरो ा पर अिचछद रिखिए –(वयाकरण ररिसटर म करिा ह |)

(क) महािगरो ा की तिावगरसत र ादगी • आकाकषाओ का असीमित दायरा • िानवीय सबध का हरास • कमििता स भरी म दगी • मनषकरष

(ि) िर हो ि रिराश करो ा मि को • िानव : सवषशरषठ पराणी • जीवन-कााट भरी राह • इमतहास क उदाहरण • मनषकरष

SANSKRIT

पाठ 1 - 4 ि स अवयय शब क छाट कर एक तामिका बनाओ । पाठ 2 व 3 ि स ततपरर सिास क शब क छाट कर एक तामिका बनाओ व मवभकतिनसार उनका मवगरह कर । गरीषमावकाश ि आप जहा भी घिन गय ह , उनक चार मचि अभयास पकतिका ि मचपका कर उनका वणषन कर । एक मचि का वणषन िगभग दस वाक ि करना ह व िजरा भी सवरमचत ह नी चामहए । पाठ 1 - 4 ि स सवर , वयजन व मवसगष सकति क उदाहरण क छाट कर एक तामिका बनाओ ।