Physicsdteaschool-lbn.org/assets/hhw/janakpuri/9-10.pdfDTEA Sr. Sec. School, Janak Puri, Class-IX HOLIDAY HOMEWORK - 2013 Political Science Projects: - On a drawing sheet or sheets,

DTEA Sr. Sec. School, Janak Puri, Class-IX

HOLIDAY HOMEWORK - 2013

Science

Physics

1. Concept of temperature -tabulate maximum an d minimum temperature and

relative humidity (R.H) for 10 days at a particular place. 2. Collect articles related to science from newspapers, magazines etc.(minimum 10

articles)

Chemistry

Q1. Learn and revise chapter- 1 (Matter In Our Surroundings.)

Q2. Answer the following questions.

1. What are the two main factors which decide the physical state of Matter?

2. Write the full form of L.P.G.

3. Write the relation between atmosphere and SI unit of pressure?

4. How are aquatic plants and animals able to survive?

5. What is the effect of increase in pressure on melting point of a substance?

6. Why do doctors generally advise to put strips of wet cloth on the forehead of a

person having high fever?

7. During summer in Rural areas, people often sprinkle water on the ground in front

of their homes. Use the reasons for this to state another use of the principle in

daily life.

8. Why does the temperature remain same during melting? While all the ice changes

into water.

9. Write the characteristics of the particles of the matter. Give one example of each.

10. Compare the kinetic energy between the molewles of solid, liquid and gases.

11. What is the SI unit of latent heat of fusion?

12. Why do solids have fixed shape?

13. Write down the full form of CNG.

14. What is dry ice? Why is it called so?

15. Why do gases exerts pressure on the walls of the containers?

16. Differentiate between boiling and evaporation.

17. What is meant by the latent heat of fusion?

18. What is the SI unit of temperature?

19. Why does ice float on water?

20. Why is cooking difficult at the mountains?

Biology 1. To learn and draw labelled diagrams of :- plant cell, animal cell,bacterial cell in H.W

notebook. 2. Write difference between :-

i) Plant cell and animal cell, ii) Prokaryotic cell and eukaryotic cell.

3. To learn and write the functions of :-chloroplast, mitochondria, golgi bodies and nucleus.

4. To cmplete the activity file and experimentation of osmosis .

5. Chart works:-

i) 1 to 7 roll nos. =compound microscope

ii) 7 to 14 roll nos. = various cells from human body

iii) 14 to 21 roll nos.= plant cell

iv) 21 to 35roll nos. animal cell



Mathematics

Collect

1. History of 3 great mathematicians

2. Reasons why π is termed as an irrational number?

3. Details of Pythagoras Theorem & its development & uses.

4. 20 Simple Mathematical Puzzles

5. The usage of all the 15 chapters in Mathematics in our day to day life

6. Solve 5 pages full of questions given from the first 3 chapters



Political Science

Projects: -

On a drawing sheet or sheets, find out 15 democratic countries in the world and give

information about when they became independent and who is the head of the state and

the government there.

Questions:-

1. Define democracy.

2. What is the difference between direct and indirect democracy?

3. What were the reforms undertaken by Allende in Chile?

4. Why was Allende overthrown?

5. How was democracy re-established in Chile.?

6. Why did the workers go on a strike in Poland?

7. How was democracy established in Poland?

ECONOMICS

1. Asking students to write all the questions and answers one time in a separate note

book

2. For project work, collect pictures of rural life and urban life and write the

difference between them.

3. Collecting pictures of various occupations like primary , secondary and tertiary

sectors and pasting it in the project.

4. Asking students to do simple bar diagram for production of wheat and pulses

given in the book



English

1 BOOK READING PROJECT

Read the book titled ‘THREE MEN IN A BOAT’ by Jerome.K.Jerome from chapter 1 to

ch 10.

2 Look for four more poems by Robert Frost and copy them down.

3 Identify your favourite musician ,collect his/her pictures and paste them along with a

write up of his/her life and work.

C.V.PUSHPA

OR

Summer Holidays homework Activities(English)

IX- 1. Collect the pictures and life history- information about any famous musician and make a

scrap book.

2. Read the chapters 1 to 10 from the book” Three Men in a Boat”.

3. Practise the grammar and the writing part taught.

4. Learn the question – answer given.



Hindi



Tamil

DTEA Sr. Sec. School, Janak Puri, Class-X


Mathematics

CLASS – X - MATHEMATICS

Collect

7. History of 5 mathematicians

8. History of π

9. Details of Pythagoras Theorem & its development & uses.

10. 50 Simple Mathematical Puzzles

11. Co-relate all the 15 chapters in Mathematics with our day to day life and try to find their use.

12. Solve 6 pages full of questions given from the first 3 chapters



Science

Physics

1 Answer the following questions taken from your NCERT text book.

PAGE NO: QUES NO:

200 1,2,&3

202 1,2&3

209 1,2,3,4&5.

213 1&2

216 1,2,3,4&5

218 1,2&3

220 1&2

I i Draw the following diagrams:

PAGE NO: Fig. no:

225 13.4

228 13.8

229 13.10

232 13.15

236 13.19

238 13.20

C.V.PUSHPA

CHEMISTRY

1. Write whether respiration is exothermic or endothermic, why?

2. Lead nitrate on heading and gives lead oxide, nitrogen oxide and oxygen. Write balanced

equation with state symbols for this reaction.

3. Silver chloride on photo chemical decomposition produces silver chlorine. What is the

application of this reaction?

4. Which one is a chemical change – fermentation of fruit juice or disusing fruit juice?

5. What change will you observe if white silver chloride is placed in sunlight? Write an

equation for the reaction and the type of reaction.

6. What is a redox reaction? Write down a chemical equation representing it.

7. Barium chloride reacts with aluminium sulphate of barium sulphate

a) Translate the above statement into chemical equation.

b) State 2 types in which this reaction can be classified.

8. Give examples of decomposition reactions carried out with the help of

a) Electricity and

b) Radiation

9. Give balanced chemical equations

a) Define displacement reaction. Which of the 2 is correct?

b) Copper can displace silver from the solution of silver nitrate.

c) Silver can displace copper from the solution of copper nitrate.

10. Complete and balance the following equation

a) Hgcl2 + KI =

b) AL + Cr2O3 =

c) Cuso4 + H2s =

11. A) Define corrosion

B) What is the name of given to the corrosion of Iron.

C) What is the colour of coating formed on silver and copper?

D) What damage is caused by corrosion?

E) How can we prevent corrosion?

12. What is rancidity?

What substances are added to prevent rancidity?

Why are chips packets flushed with nitrogen gas?

13. What is the relationship between oxidation and oxidising agent in a redox reaction?

14. What type of reactions are represented by the following equations:

a) A + B = AB

b) A + BC = AB + C

c) ABC = AB + C

d) AB +CD = AC + BD

Biology This comprise of the topics Respiration and Nutrition from the Life process Chapter. Assignment will be categorized into two

1) Activities based assignment

2) Learning based assignment

Activities based assignment:

The mentioned activities(mentioned under list of activities) have been already explained in the class. Based on the class room session, the student should document the activity in three fields which should include the below. A separate note book should be maintained for this which will be followed for entire academic year.

Steps performed during the activity.

Important observations noted while performing the activity

Conclusion and lesson learnt from that activity. List of activities:

Importance of Chlorophyll for photo synthesis process.

Importance of Carbon dioxide for Photosynthesis process.

Justify that the exhaled air contains more carbon dioxide than inhaled air.

Fermentation process.

Learning based assignment:

1) The student should read the above mentioned topics thoroughly and write about the same in

detail with diagram if any.

Cross section of a leaf

Stomata and its functions

Photosynthesis process 2) Describe different digestive enzymes in human being and their functions in the below mentioned

format

Name of the enzyme Production site in body Functions

3) Describe about the breakdown of Glucose by various pathways

4) Draw a diagram of Human respiratory system and answer the following questions

Parts through which air is taken in

Parts which protects the lung and which carries the air into lung



English

X- 1. Collect pictures and information about Nelson Mandela/ any other freedom fighters. Make a

scrap book.

2. Practise the writing part and the grammar part taught.

3. Read the chapters 1 to 6 from “The story of my life” by Helen Keller.

4. Learn the questions –answers given:-



Social Science

(Political Science)

Project:- Take any two states apart from Belgium and Srilanka which has faced or is facing a

civil war/ has avoided due to the policy of Accommodation or Majoriitarianism,

giving information on the following:-

1. Ethnic composition of the population.

2. Constitutional setup.

3. If there is a war since when and what is the position today?

4. If there has been no war what are the reasons?

(Economics)

1. Asking students to write questions and answers for chapter1 in a separate note

book.

2. For disaster management project work , instructions and materials are given to

students to do one project- either SURVIVAL SKILLS OR FIRST AID KIT.

3. For disaster management assignment ,question and answers are given to do

separately.

(History) 1.Paste different types of soil.

e.g: Arid soil,Alluvial soil,black soil etc.

2.Paste different Seeds

e.g: Apple seed, orange seed, flower seed etc.

3.Paste crops(paste crops which are all available)e.g:

Rajma,Chana,Pulsesetc.

4.Textiles

e.g: Cotton cloth,woollen cloth etc.synthetic clothes also.

5.Paste in coloured Pastel Sheets and name each of them.



Hindi



Tamil

Documents

Physicsdteaschool-lbn.org/assets/hhw/janakpuri/9-10.pdfDTEA Sr. Sec. School, Janak Puri, Class-IX HOLIDAY HOMEWORK - 2013 Political Science Projects: - On a drawing sheet or sheets,