DASHMESH PUBLIC SCHOOL

VIVEK VIHAR

HOLIDAYS HOMEWORK

CLASS: X C

ENGLISH

CLASS X WORKSHEET- I (WRITING AND GRAMMAR)

ARTICLE WRITING:

1. Sports from time immemorial, is considered to be the best form of exercise for

maintaining our health. You are Radhika /Rahul , Head of the sports club of your

school. Write an article for your school magazine titled, ‘Health Benefits of sports.’

2. The immune system works best when you are sleeping.’ Taking tips from the given

notes and your MCB unit ‘Health and Medicine’, Write an article in about 100-120

words on the effects of sleep disorder on your immune system. You are Aditya.

• Leads to an array of health problems.

• 7 to 8 hours of sleep a day.

• Natural killer cells generates while we sleep.

• Consistency strength immune system.

STORY WRITING:

Write a short story in about 150- 200 words with the outline given below.

1. It was a cloudy morning when……

2. I was nervous and scared. I heard someone call out my name……..’

3. Night before the Zonal debate competition ……. Everyone was fast asleep, While I

was practicing suddenly......

LETTER TO THE EDITOR

1. Write a letter to the editor of an ‘English Diary’ making a plea to common people to

switch over to solar energy to conserve electricity and limit electricity bills. You are

Kapil /Neha and your address is A-226 ,Sector 12,RK Puram,New Delhi. ( 100 120

words)

2. You are Amit/Neha of D-196 Manak vihar. You want to place an order for

purchasing a washing machine. Write a letter to the manager of ‘ABC Company Ltd.’

Ordering for the same.

3. You are Aman Yadav from Shalimar Bagh. New Delhi. Taking ideas from the points

given below ,Write a letter to the editor of a newspaper expressing your concern

regarding the health hazards caused by junk food and its long lasting effects( 100-

120 words)

• Cheap , tasty and saves time.

• Zero nutritional value.

• Disastrous effect on body.

• Leads to diseases like obesity, tension etc.

4. You are Sumit/Sanya. You bought a refrigerator and it turned out to be defective.

Write a letter to the manager of ‘Samsung Company’ for replacing it or repairing it.

GRAMMAR

EDITING::

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

incorrect word and the correction against correct blank number.

JUMBLE WORDS:

Rearrange the following words/phrases to form meaningful sentences.

1. Thirst quenches/one of the best/watermelon/is summer/is

2. Four hours/the fast/liquids/during/every/take

3. Service/the/of mankind/god/the service/of /is

4. Effort/great/without/nothing/achieved/can be

5. Every/entire/is /the/cosmos/changing/moment

6. Manage/machines/we/how to/ don’t know/our

7. At/end/picked/the receiver/is /the other

8. Was filled/he/when/saw her/he/with amazement

9. Kali/Ram’s /prayers/sincere/heard/mother.

( LITERATURE AND NOVEL-LONG READING TEXT…)

Q1. Describe the physical appearance and the writers observation of the two boys as

they snowed them the town as guides (Two gentleman of Verona)

Q2. The narrator preferred to keep the secret which the boys did not want to reveal .

What was the secret and why did the boys want to keep it ? (Two gentleman of

Verona)

Q3. Through Mrs. Packletide knew that she did not shoot the tiger , still secret . why

? (Mrs Packletide’s tiger)

Q4. “ mrs Pacletide was reasonably annoyed at the discovery” . What lid her to be

annoyed?( Mrs. Packeletide)

Q5. The frog considers the nightingle stupid and brainless .Do you agree with the

statement? Support your answer with reasons .(The Frog and the Nightingale)

Q6. How does the frog’s foghorn blasé unrivalled through the bog? (The Frog and the

Nightingale)

Q7. The poem ‘ The Mirror’ is replete with examples of personification . Recollect the

poem to analyze how the poet make use of literary device in the poem.

Q8. How is the mirror ‘ The eye of a little god’ Comment upon the use of those

expressions in the poem.

Novel (Long Reading Text)

“ THE STORY OF MY LIFE ”

Q1. Give a brief introduction to Helen’s family background ?

Q2. What was the peculiar about the way Helen was named?

Q3. What were the things that gave Helen pleasure?

Q4. Which event caused Helens parents to think about teaching her?

Q5. How does Helen convey the sense of frustration that she felt at not being able to

communicate?

Q1. Barium Chloride reacts with aluminum to give aluminum chloride and a

precipitate of barium sulphate.

i. Translate the above statement into a chemical equation.

ii. state two types in which this reaction can be classified .

Q2. A small amount of ferrous sulphate was heated in a hard glass test tube.

i. Write the equations involved in the above reaction

ii. What type of reaction is taking place.

Q3. A solution of potassium chloride when mixed with silver nitrate solution, an

insoluble white substance is formed . write the chemical reaction involved & also

mention the type of the chemical reaction.

Q4. When a solution of potassium iodine is added to a solution of lead nitrate

taken in a test tube, a reaction takes place. What type of reaction is this ?

Q5. Why do silver articles turn black and copper items turn green after

sometimes?

Q6. In the electrolysis of water:

a. Name the gas collected at the cathode and the anode.

b. Why is the volume of gas collected at one electrode is double of the

other?

c. Why are a few drops of a dil. H2So4 added to water ?

Q7. i. Define corrosion.

ii. What is the corrosion of iron named?

iii. What is the colour of coating formed on silver & copper?

iv. What damaged is caused by corrosion

v. How can we prevent corrosion.

Q8. The length of a wire is doubled and its cross – reaction area is also doubled

. What is the change in its resistivity?

Q9. The combination shown has resistance of 5Ω, What is the name of R?

2 Ω R Ω

Q10. In the circuit shown power dissipated in 12Ω resistance is 6 watt. What

is the power dissipated in the 8 Ω resistance ?

Q11. Out of the two , a toaster of 1kw & an electric heater of 2 kw, which

has a greater resistance?

Q12. A wire of length ‘L’ and resistance R is stretched so that the length is

doubled & area of cross – section halved . How will (i) resistance change , &

(ii) resistivity change

Q13. Two metallic wires A & B of the same material are connected in parallel .

wire A has length l and radius 2r calculate the ratio of the equivalent resistance

in parallel combination and the resistance of wire A.

Q14. Find the equivalent resistance of the following circuit.

Q15. Finds the equivalent resistance across two ends A & B of circuits.

Q16. A circuit is shown in the diagram. Find (a) the value of R (b) the reading

of the ammeter , ( c) the potential difference across the terminal of battery.

Q17. Find the current flowing through the following electric circuit.

Q18. Why does the flow of acid rain water into a river make the survival of

aquatic life in the river difficult?

Q19. ‘ Sweet tooth’ may lead to tooth decay . Explain, why? What is the role

of tooth pastes in preventing cavities?

Q20. Why is it advised not to use copper or brass vessels to store pickles or

curd?

Q21. How will you prove that the given salt is a carbonate of metal?

Q22. Dry HC1 gas does not change the color of dry blue Litmus paper. Give

reason.

Q23. How washing Soda is prepared from baking soda?

Q24. Explain the effect on concentration of hydroniumion[H3O]+ and PH of an

acidic solution on dilution.

Q25. On passing excess CO2 through Lime water, it first turns milky and than

becomes colorless. Explain why? Write the chemical reactions.

Q26. How are bases different from alkalis? Are all bases alkalis?

Q27. A student dropped a few pieces of marble in dilute hydrochloric acid ,

contained in test tube, the evolved gas was then passed for a Long time through

Lime water, what changes would be observed in Lime water? Write balanced

equations for both the changes observed.

Chapter – 1 REAL NUMBERS

Q1. Show that one and only one out of n, n+4, n+8, n+12 and n+6 is divisible by 5

where n is any positive integer.

Q2. By using Euclid’s division algorithm , find the latgest number which when divides

969 and 2059, gives the remainder 9& 11 respectively.

Q3. There are 156,208 and 260 students in groups A, B & C , respectively . Buses

are to be hired to take them for a field trip. Find the minimum number of buses to be

hired, if the same number of students should be accommodated in each bus.

Q4. Check whether 4n , where n is a natural number , can end with the digit 0 for any

natural number n.

Q5. The length , breadth and height of a room are 8m25cm, 6m 75cm & 4m 50cm,

respectively Find the length of the longest rod that can measure the three dimensions

of the room exactly

Q6. If HCF ( 28,35 and 343)=7 , find the LCM (28,35 and 343)

Q7. Check whether the rational number 1/13 , is terminating recurring or non-

terminating recurring decimal expansion.

Q8. Express the following as a rational number is the simplest form.

i. 0.16 ii. 1.37

CH- 2 POLYNOMIALS

Q1. If Zero of the polynomial x2 +(a+1) x+b are 2 and -3 , then find the value of

(a + b ) .

Q2. If and β are the zeroes of the quadratic polynomial p(x) =ax2 +bx +c , then

evaluate β + β2

Q3. Find the zeros of the polynomial f(x )= x3 -5x2 -2x +24, if it is given that the

product of its two zeros is 12.

Q4. If and β are zeros of a quadratic polynomial x2-5 , then form a quadratic

polynomial whose zeros are 1+ and 1+β.

Q5. Find the cubic polynomial whose three zeros are 3, -1 and -1/3.

Q6. What should be added in the polynomial x3+2x2-9x+1 , so that it is completely

divisible by x+4.

Q7. IF the polynomial 6x4 +8x3+ 17x2+21x +7 is divided by another polynomial 3x2

+4x+1, the remainder comes out to be ax+b , then find the values of a and b .

Q8. If the polynomial f(x) =3x4 -9x3 +x2 +15x +k is completely divisible by 3x2 – 5 ,

then find the value of k and hence the other two zero of the polynomial .

Q9. If sum of the squares of zeroes of the quadratic polynomial f(x) = x2 -4x +k is 20

, then find the value of K.

Q10. If the zeroes of the cubic polynomial x3-6x2+3x+10 are of the form a, a+b &

a+2b for some real numbers a nad b , then find the values of a and b.

Chapter -3 Pair of linear Equation in two variables 1. Two numbers are in the ratio 5:6 .If 8 is subtracted from each of the

numbers, the ratio becomes 4:5. Find the numbers.

2. Solve the following systems of linear equations:

a x + b y - a + b = 0

b x + a y – a – b = 0 using substitution method, elimination method

and cross multiplication method

3. The area of a rectangle gets reduced by 80 sq units, if its length is

reduced by 5 units and the breadth is increased by 2 units. If we

increase the length by 10 units and decrease the breadth by 5 units

then the area is increased by 50 sq units. Find the length and breadth

of the rectangle.

4. A boat goes 3 km upstream and 44 km downstream in 10 hr. In 13 hr it

can go 40 km upstream and 55 km downstream. Determine the speed

of the stream and that of the boat in still water.

5. 4 men and 6 boys can finish a piece of work in 5 days, while 3 men and

4 boys can finish it in 7 days. Find the time taken by 1 man alone or

that by 1 boy alone.

6. If 4 times the area of a smaller square is subtracted from the area of a

larger square, the result is 144 m2.The sum of the area of the two

squares is 464 m2. Determine the sides of the two squares.

7. A and B are two points 150 km apart on a highway. Two cars start with

different speeds from A and B at the same time. If they move in the

same direction, they meet in 15 h but if they move in the opposite

direction, they meet in 1 hr. Find their speed.

8. Students were standing in a row for a mass drill. If one student is

extra in a row, there would be 2 rows less. If one students is less in a

row, these would be 3 rows more. Find the number of students.

9. Find the value of ‘K’ for which the system of equations :-

k x – 5 u = 2 and 6 x + 2 y = 7

has no solution .

10. Father’s age is 3 times the sum of ages of his two children. After 5 yrs ,

his age will be twice the sum of ages of the two children. Find the age

of father.

SOCIAL STUDIES 1. Every students has to undertake one project on the given topic:-

I -DISASTER MANAGEMENT

i. Role of Govt. /Non – Govt functionaries of your locality.

ii. Generating awareness on Disaster management.

iii. Communication facilities for Disaster management like radio/ Satellite /

television etc.

II MONEY and CREDIT

i. Make a project on the commodities which were used as money in the ancient

times.( From Border system to modern form of money)

2. QETIONS BANK

I HISTORY (CH-2)

i. Write a note on ‘ civilizing mission of the colonisers’.

ii. How did the students in Vietnam fight against the colonial government’s

efforts to prevent Vietnamese from qualifying for ‘white collar jobs;. Explain.

iii. Describe the entry of US into Vietnam War.

iv. Explain any four major challenges faced by Democratic Republic of Vietnam.

II. GEOGRAPHY (CH- 1)

i. Whom did Gandhi ji consider responsible for the depletion of resource at

global level.

ii. Sustainability of development is a new era of knowledge’ do you agree.

iii. Classify and explain resources on the basis of its origin.

iv. Describe any four characteristics of arid soil of India

III- POLITICAL SCIENCE( CH- 1 and 2 )

i. Why is power sharing describe ? describe in your own words?

ii. What types of government prevails in Belgium?

iii. Mention any five main features which make India a federal country.

iv. Which system of power sharing is called checks and balances?

IV- ECONOMICS ( ch- 1)

i. Mention any four characteristics of development ?

ii. Describe any three public facilities needed for development.

iii. “ Money cannot buy all the goods and services that one need to live well “.

Explain.

3. Map work

Do map no 47, 48 and 49 in map book.

COMPUTER

Q1. Create a hand written project file/scrap file with images from chapter no 1

and 2 and decorate outer cover related to Computer theme.

Q2. Write the functions of following shortcut keys on s an attractive chart .

1) Ctrl + L 2) Ctrl + I 3) Ctrl + Z 4) Ctrl + 3 5) Ctrl + E 6) Ctrl + J 7) Ctrl + R 8) Ctrl + C 9) Ctrl + B 10) Ctrl + [ 11) Ctrl + F2 12) Ctrl + P 13) Ctrl + S

S.U.P.W

X A

1. Best out of waste(paper mache)

2. Greeting card (Teachers Day)

3. Poster Slogan on A3 size sheet :-

a. Corruption

b. Save Earth

X B

1. Make a Flower of Sparkle Sheet

2. Greeting Card of Tree Plantation

3. Poster Slogan on A3 size sheet

a. Save Girl Child

b. My Aim

X C

1. Decorated Border with pastel sheet

2. Greeting card of “ Independence Day”

3. Poster Slogan on A3 size sheet

a. Global Warming

b. How you spend your holidays

Inter Disciplinary Project

IX - X (2017-18)

TOPIC- WATER CONSEWRVATION- TEMPLES OF MODERN INDIA - MULTI PURPOSE RIVER

VALLRY PROJECTS - THEIR ROLE IN WATER MANAGEMENT.

Clean fresh water is essential for healthy life. However , today , nearly one billion people don't

have access to clean water . Water Scarcity is the lack of sufficient available water resources to

meet water needs within a region . It affects every continent. Depleting reservations and failing

groundwater table has led to an acute water shortage in several states of India as well.

Multipurpose river valley projects in India were started with the basic aim of meeting the

critical requirements of irrigation for agriculture , electricity for industries and flood control .

The importance of the dams at that time can be inferred from the fact that dams were regarded

as " The Temples of Modern India" by our first Prime Minister , Pandit Jawahar Lal Nehru .

Accordingly, dam construction was given such a high priority in India's economic plans. Till now

"Irrigation and hydro - power have been the major objectives of the water resources

development in India. " These " Temples of Modern India" or rather Multipurpose Projects ( or

River Valley Projects ) have not only solved much of the water scarcity problem but also

boosted the Indian economy.

General Instructions:-

• A single inter - disciplinary project is to be made in one file containing all subjects.

• The first page of the projects should have the following details: o Name of the student o Class and section o Session

• The second page must have the following :

Subject Remarks by Teacher Teacher's Signature

• The projects should be hand written on plan white / coloured A4 size sheets

• All subject specific tasks or homework to be placed in a single file ( spirally bound or otherwise).

• Cover page, table of contents, acknowledgements , bibliography should be included.

• It should be well presented , researched and pictorial .

• Each subject should not exceed 8 sheets .

• The project carries 20 marks for each subject:

• Relevance of the content - 5 marks

• Expression of the ideas - 4 marks.

• Presentation- 4 marks

• Research - 4 marks

• Creativity- 3 marks

TASK 1

1. Imagine you visited one of these Multipurpose River Valley Projects. You did a lot of research

on the project as well. You learnt about its water capacity, height of the dam, uses, name (s)

of the river (s) it is built upon, date of inauguration, their role in water management, etc.

Write a diary entry sharing your views and experiences of your visit. You may also include

information about the multipurpose project. ( 100-120 words)

2. The Tehri dam construction controversy has pitted development against environmental

conservation, modernity against traditional values, and the state against communities.

Express your views on the issue.

3. Read the newspapers everyday. Collect articles related to water conservation. Make a

collage of the same on an A4 size sheet and file it.

TASK II

1.

2.

TASK III

S.No. River Dam Height Length Type Installed Capacity

1. Satluj Bhakra Nangal Dam,

Himachal Pradesh 226

metres 520 metres

Concrete Gravity

1325 MW

2. Narmada Indira Sagar Dam, Madhya Pradesh

92 metres 653 metres Concrete Gravity

1000 MW

3. Kaveri Krishnarajasagar Dam,

Karnataka 125 ft. 3.5 km Masonry 200 MW

4. Mahanadi Hirakund dam,

Odisha 200 ft. 25.8 km Concrete 348 MW

5. Banas Bisalpur Dam

Rajasthan 130 ft. 1883 ft. Gravity 172 MW

6. Koyna Koyna Dam

Maharashtra 339 ft. 2648 ft.

Rubble-concrete

1,920 MW

7. Krishna Nagarjuna Dam, Andhra Pradesh

407 ft. 5085 ft. Gravity 816 MW

8. Narmada Sardar Sarovar Dam

Gujrat 535 ft. 3970 ft. Gravity 1450 MW

9. Chambla Gandhi Sagar Dam Madhya Pradesh

204 ft. 1686 ft. Masonry gravity

115 MW

10. Bhavani Bhavanisagar Dam 105 ft. 1700

metres Earthen 1,920 MW

Page 3:

Answer the questions given below on the basis of the information provided in the table:

1. Convert the heights of Bhakra Nangal dam and Indira Sagar dam from metres to feet. (If 1 metre=3.3 feet)

2. Arrange the ten dams in the increasing order of their heights. 3. Change the lengths of Indira Sagar dam, Bhakra dam and Bhavanisagar dam from metres

to km. 4. Name the tallest dam and the longest dam from the above mentioned table. 5. Describe how the river valley system has helped in the management of

- Irrigation - Generation of hydroelectric power - Improvement of pisiciculture technique

6. Question 5 will be done as given under

Roll no. 1-10 : Bhakra Nangal Dam

Roll No. 11-20 : Hirakud Dam

Roll No. 21- 30 : Sardar Sarovar Dam

Roll No. 31-40 : Nagarjun Dam

Roll No. 41 Onwards : Gandhi Sagar Dam

TASK IV 1. Name the Indian states benefitted by Multipurpose River Valley Projects and

diagrammatically (Graph) illustrate their percentage share of water in the project.

You can refer to the following internet sites-

www.facts-about-india.com/river-valley-projects.php

www.allexamgurublog.com/…/multipurpose-river-valley-projects-in.htm…

www.jagarnjosh.com/…/multipurpose-rivervalley-projects-1292061339-

2. Design a poster on an A4 size sheet on the topic " Water Conservation". Make it

colorful and attractive.

TASK V

With the help of the table above (task III) answer the following questions:

1. Name the rivers on which they are built. 2. States in which they are built ( also show on the political map of India) 3. History of these dams. 4. Role of the dam in water management. 5. Environmental impact of the construction of the dam.

Roll no. 1-10 : Bhakra Nangal Dam

Roll No. 11-20 : Hirakud Dam

Roll No. 21- 30 : Sardar Sarovar Dam

Roll No. 31-40 : Nagarjun Dam

Roll No. 41 Onwards : Ganshi Sagar Dam

(Note: You can also take help from the internet)