Holiday assignment Worksheet

Grade: X

Subject: Tamil

nfhLf;fg;gl;l ,yf;fzj; jiyg;Gfspy; tiuglj;jhs; (Chart) / kd tiuglk; (Mind map) / khjpupfs; ( Models ) jahupj;J tuTk;.

Subject: English

Your holiday homework this year is a fun mix of all the aspects of the language. It has been designed to ensure that you enjoy and learn at the same time.

1. Write an article on the topic –‘Modern Generation and Fast Food’. [120- 150 words]

2. Write a short story [150-200 words] with an opening line‘One day I walked into my house and I was shocked to see……’

3. Write your experience of your summer holidays in the form of a diary-entry. (15 days) (120-150 words)

4. Explain the literary devices and cite suitable examples from selected poems in a thin notebook. Given below is a list of literary devices that you can look for in your poem.

Simile Metaphor Personification Alliteration Repetition Oxymoron Refrain Hyperbole Allusion Apostrophe Irony Paradox Onomatopoeia

5. Prepare a bio – sketch of ‘ A.J. Cronin’ and ‘Vikram Seth’.

6. Make a beautiful bookmark for your Literature reader. Decorate it and write a famous quotation by a well-known poet or author.

Subject: Mathematics

1. If one zero of the polynomial is , write the other zero.

2. If the sum of the zeroes of the quadratic polynomial is equal

to twice their product, find the value of k.

3. Find the zeroes of the quadratic polynomial and verify the

relationship between the zeroes and the coefficients.

4. If the product of the zeroes of the polynomial is 4, then find

the value of a. also find the sum of zeroes of the polynomial.

5. If α and β are zeroes of the quadratic polynomial then form a

quadratic polynomial whose zeros are 2α and 2β.

6. Verify whether 2, 3 and ½ are zeroes o the

polynomial .

7. If α and β are zeroes of the quadratic polynomial then form a

quadratic polynomial whose zeros are -α and -β.

8. Find the zeroes of the quadratic polynomial and verify the

relationship between the zeroes and the coefficients.

9. If one zero of the quadratic polynomial is

negative of the other, then find zeroes of

10. If one of the polynomial is multiplicative inverse of the

other, Then find the zeroes of where k is constant.

11. If α and β are zeroes of the quadratic polynomial, such that α + β = 6 and α

β = 4, then write the polynomial.

12. Show that ½ and -3/2 are the zeroes of the polynomial and

verify the relationship between zeroes and coefficients of polynomial.

13. If the polynomial is divided by another

polynomial the remainder comes out to be (ax + b), find a

and b.

14. If -1 and 2 are two zeroes of the polynomial finds its

third zero.

15. Divide by and verify the division

algorithm.

16. Given that x-√5 is factor of the polynomial find

all the zeroes of the polynomial.

17. If the polynomial is divided by

the remainder comes out to be (x + a), find k and a.

18. On dividing the polynomial by the polynomial

g(x), the quotient and remainder were and

respectively. Find g(x).

19. Find the value of b for which (2x + 3) is a factor of

20. Find all zeroes of the polynomial if one of its

zeroes is -2.

21. Divide the polynomial by the polynomial and verify

the division algorithm.

22. What must be subtracted or added to

so that is a factor of p(x)?

23. Divide the polynomial by 3 and verify the

division algorithm.

24. Divide by 3 and verify the

division algorithm.

25. Find the values of a and b so that is divisible by

26. On dividing by polynomial p(x), the quotient

and remainder are and -7 respectively find p(x).

27. If the polynomial is exactly divisible

by , then find the value of k.

28. Obtain all other zeroes of the polynomial , if two of

its zeroes are √2 and 2√2.

29. If 2 and -3 are the zeroes of the quadratic polynomial ,

then find the values of a and b.

30. It being given that 1 is one of the zeroes of the polynomial

Find its other zeroes.

31. If the zeroes of the polynomial are double in value to the

zeroes of , find the value of p and q.

32. Divide by , find quotient and remainder.

33. Obtain all other zeroes of the polynomial , if two of

its zeroes are √3 and -√3.

34. Find other zeroes of the polynomial if it is given that two of

its zeroes are √3 and -√3.

35. If the polynomial is divided by another

polynomial then what will be the quotient and remainder?

36. Find the roots of the quadratic equation

37. If x=2/3 and x=-3 are roots of the quadratic equation

find the values of a and b.

38. Solve for x:

39. If -5 is a root of the quadratic equation 2 and quadratic

equation has equal roots, find the value of k.

40. Solve for x:

41. Solve for x:

42. Solve the following quadratic equation for x:

43. For what value of k, are the roots of the quadratic equation

equal?

Subject: Science

Topic: Carbon and its compounds

1. Write the molecular and structural formula of first four compounds in

each homologous series. Make a table of given compounds having its

general formula as its header.

2. Write the electron dot structure of ethane molecule.

3. Write the molecular formula of benzene and state the number of double

bonds in its structure.

4. Select saturated hydrocarbons from the following:

C3H6, C5H10, C4H10, C6H14, C2H4

5. Write the names and molecular formula of two organic compounds

having functional group suffixed as –‘oic ’acid. With the help of a

balanced chemical equation and explain what happens when any one of

them reacts with sodium hydroxide.

6. State in tabular form the structural formula and the functional groups

present in (i) ethanol and (ii) ethanoic acid.

7. Write a chemical equation in each case to represent the following types

of chemical reactions of organic compounds.

(i) Oxidation reactions

(ii) Substitution reactions

(iii) Addition reactions

8. What is catenation and why should carbon having that property and

what do u mean by saturated and unsaturated compounds?

9. How is ethene prepared from ethanol?

10. How is propanol converted to propionic acid?

11. What two properties of carbon lead to a large number of carbon

compounds?

12. What happens when soap is tested with red litmus?

13. State TRUE/FALSE: Acetic acid is stronger than HCl.

14. State TRUE/FALSE: Soaps work effectively in hard water.

15. Distinguish between ethanol and ethanoic acid.

16. In which form does carbon exists in the atmosphere?

17. Why are mineral acids stronger acids than carboxylic acids?

Frequently asked board questions:

1 MARK QUESTIONS

1. What is the unique property of carbon atom? How is this property helpful to us?

2. Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity?

3. Write the electron dot structure for: (1Mark each)

(a) Ammonia (NH3) (b) Nitrogen (N2) (c) Ethyne (C2H2)

(d) Carbon dioxide (CO2) (e) Benzene (C6H6) (f) Cyclopentane

4. The molecular formula of A is C10H18 and B is C18H36.Name the homologous series to which they belong.

5. Classify the following compounds as alkanes, alkenes and alkynes. C2H4 , C3H4 , C4H8 , C5H12 , C5H8, C3H8

2 MARKS QUESTIONS

6. Why carbon forms compounds by sharing of electrons and not by the formation of ions?

7. State the meaning of functional group. Write the functional group present in

(a)Ethanol and(b) Ethanoic acid and also draw their structures. (DELHI-2014)

8. Draw the structures of the following compounds : (CBSE-2012)

(i) 2-Bromopentane (ii) 2-methylpropane (iii) Butanal (iv) 1-Hexyne

9. A hydrocarbon molecule has 3 carbon atoms. Write down its molecular formulae if it is an

(i) alkene, (ii) alkyne

10. How would you name the following compound: (CBSE-2012)

(i) CH3-CH2-CHO (ii)CH3-CHOH-CH3

(iii) CH3-CH2-CH2-CH(CH3)-CH3 (iv) CH3-CH2-CH=CH2

11. The general formula of a homologous series of carbon compounds is CnH2n. Write the structures

And IUPAC names of the second and fourth member of this series.

12. Compare the ability of catenation of Carbon and Silicon. Give reasons.

13. What is meant by hydration of ethene? What is the role of sulphuric acid in this reaction? Explain with a chemical equation.

14. Explain the cleansing action of water: (CBSE-2013)

3MARKS QUESTIONS

15. Complete the following equations. Also name the final products. (CBSE-2013)

(a) CH3COOC2H5NaOH

(b) CH3COOH + NaHCO3

(c) CH3COOH + C2H5OH Conc. H2SO4

(d) C2H5OH + Na

(e) CH3COOH + NaOH

16. An organic compound with molecular formula C2H4O2 produces brisk effervescence on addition of sodium carbonate/bicarbonate.

(a) Identify the organic compound.

(b) Name the gas evolved. How will you test this gas?

(c) Write a chemical equation for the above reaction.

(d) List two important uses of the above compound.

17. What is an oxidising agent? Name two oxidising agents which can oxidise ethanol to ethanoic acid.

Write the equation of the reaction involved.

18. How is that we can use detergents for washing clothes even when the water is hard, but not soap ?

What change has been made in the composition of the detergents to make them biodegradable ? (CBSE–2012)

19. Differentiate between soaps and detergents.

20. Give reason:

(a) A mixture of oxygen and ethyne is burnt for welding and not a mixture of ethyne and air.

(b) Soaps do not work well with hard water.

(c) Carbon compounds do not conduct electricity? (CBSE-2012)

21. (a) What is a homologous series of substance?

(b) In an organic compound, which parts largely determine its physical and chemical properties?

(c) An organic compound burns with a sooty flame. Is it a saturated or an unsaturated hydrocarbon?

Give reason.

22. Value based Question:

Most of the children of a school in a village bring parantha and pickle in their tiffin. These children do not share their food ith anyone. Some children bring chapati, fruit , curd, salad, vegetable. These children share their food with each other. ?

a) Which acid is present in curd and vinegar, used in pickle ? b) What class of compound should be present in our diet ? c) Which group of children bring healthy food ? Give two benefit of this food. d) Which group of children bring unhealthy food ? Give two harmful effects. e) Which group of children have better value system and why ?

Subject: Science -II

Model making on Human respiratory system. Assignment – Human circulatory system

Subject: Social Science 1. HISTORY:

Prepare worksheet for the following lessons which should contain not less than 60 questions each lesson.

The Nationalist Movement in Indo-China . The making of a Global World.

2. GEOGRAPHY: Collect photography of typical rural houses, and clothing of people from different regions of India and examine whether they reflect any relationship with climatic conditions and relief of the area. Poster making: Pollution of water in the locality. Depletion of forests and the greenhouse effect.

3. CIVICS: Prepare a chart - various political party leaders’ photograph, symbols and flags.

4. ECONOMICS: Visit to banks and money lenders/ pawnbrokers and discuss various activities that you have observed . Chart work: Collect logo of standards available for various goods and services. Write stories of consumer exploitation and grievances from newspapers and consumer courts.