ARMY PUBLIC SCHOOL KANPUR CANTT HOLIDAY HOMEWORK:2019-20

CLASS IX

ENGLISH

(In project file)

1. Write film review of “Avengers Endgame” in about 120-150 words.

2 Tell your Tale In Black and White….(Writing)

We do have our tales to tell others…. Considering this, it is important to know how to write a suitable story.

This skill is always going to help us in expressing our creative ideas with more freedom and less burden.

Students…

*Write salient features of a suitable story.

*Write Dos and Don’ts of writing a story.

*Complete the story with the given beginning in about 200-250 words:

It had been over two hours waiting for the train. Rubi was getting restless. Suddenly, she noticed a child

begging at the platform……………………..

3. Read your Way!!!(Reading)

Read chapter 2, 3 & 4 from your book “Moments”(Supplementary Reader) and write the value points for

group discussion after summer vacations.

SCIENCE BIOLOGY

1. Prepare a scrap book/video/ Power point presentation of a biological phenomenon.Examples—biogeochemical cycles, types of tissues, working of cell organelles, diversity in plant /animal kingdom, vertebrates, acute/chronic diseases, inflammation, vaccinations-past & present etc.

2. Revise the given question bank & write the answers:

Q. 1. Who discovered cells, and how ? Q. 2. Why is the cell called the structural and functional unit of life ? Q. 3 How do substances like CO2, and water move in and out of the cell ? Discuss. Or Name the process by which CO2, and H20 move into and out of the cell. Q. 4. Why the plasma membrane is called a selectively permeable membrane?

. Q. 5. Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells.

Q. 6 Can you name the two organelles we have studied that contain their own genetic material. Q. 7 If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen? Q. 8 Why are lysosomes known as suicide bags? Q. 9 Where are proteins synthesized inside the cell ? Q.10. 0.9% of NaCl solution is considered isotonic for RBC. IfRBCs are placed in 2% NaCl solution, what will happen to the cells ? What is such a solution called ?

PHYSICS

1) Which speed is greater: 30 m/s or 30 km/h? 2) What is the quantity which is measured by the area occupied below the velocity-time graph? 3) Give one example of each of the following situations. (i) Uniformly accelerated motion. (ii) Motion with uniform retardation. (iii) Accelerated motion with uniform magnitude of velocity. (iv) Motion in a direction with acceleration in perpendicular direction. (v) Motion in which v-t graph is a horizontal line parallel to x-axis. 4) Draw a velocity versus time graph of a stone thrown vertically upward and then coming downwards after attaining the maximum height. 5) State three equations of motion. Which of them describes (i) velocity-time relation? (ii) position-time relation? 6) Derive first equation of motion graphically. 7) A bridge is 500 m long. A 100 m long train crosses the bridge at a speed of 30 m/s. Find the time taken by train to cross it. 8) A car covers first 50 km at a uniform velocity of 45 km/h and the next 50 km at 90 km/h. Find the average velocity of the car. 9) A train starts from rest and accelerates uniformly for 30 s to attain a velocity of 72 km/h. Find (i) its acceleration (ii) distance travelled. 10) A bus retards uniformly at a rate of 3 m/s2 and stops in 10 s. With what velocity was the bus travelling? 11) A body is moving with a velocity of 10 m/s. If the motion is uniform, what will be the velocity after 10 s? 12) Suppose a ball is thrown vertically upwards from a position P above ground. It rises to the highest point Q and returns to the same point P. What is the net displacement and distance travelled by the ball? 13) On a 100 km track, a train travels the first 30 km at a uniform speed of 30 km/h. How fast must the train travel the next 70 km, so as to average 40 km/h for the entire trip? 14) A train travels at a speed of 60 km/h for 0.5 h, 24 km/h for next 0.25 h and then at 72 km/h for the next 0.75 h. Calculate the distance travelled by train and its average speed.

15) An object is moving with uniform speed in a circle of radius r. Calculate the distance and displacement (i) when it completes half the circle (ii) when it completes full circle (iii) what type of motion does the object possess?

CHEMISTRY 1. On what principle do hot air balloons work? 2. Water is boiling at 1 atm in an open vessel and at 1.2 atm in a pressure cooker. Which has higher temperature? 3. Convert human body temperature 37oC into oF? 4. The density of a metal is 9.6g/ cm3 convert density in kg /m3 5.What weight of silver nitrate will react with 0.585g NaCl to produce 1.435 g AgCl and 0.85g NaNO3.(apply law of conservation of mass) 6. What is meant by saying that the latent heat of fusion is 3.34 x 105 J/Kg 7. When ethanol or ether is put on palm cooling is noticed why? 8. What is the difference between vaporization and boiling? 9. A given liquid is heated in two different pans. liquid in one pan is boiling gently while in another pan liquid is boiling vigorously is temperature of liquid in both the pans same or different? 10. Water and water vapours are at 1000C.Which has more kinetic energy? 11. State the conditions necessary for liquefaction of gases 12. Why does spirit evaporate when applied at the back of our hand? 13. How is cooling caused by evaporation? 14. Which contains more heat (a) 1kg of water at 1000C (b) 1 kg of steam at 1000C .Give reason? 15. Why dry ice is more effective for cooling than ordinary ice?

SOCIAL SCIENCE

Make a project file on disaster management

Objectives: The main objectives of giving project work on Disaster Management to the students are to:

create awareness in them about different disasters, their consequences and management

prepare them in advance to face such situations

ensure their participation in disaster mitigation plans

enable them to create awareness and preparedness among the Community.

The project work should also help in enhancing the Life Skills of the students.

If possible, various forms of art may be integrated in the project work.

Note: (For class IX X)

A4 size page(15-20)

Spiral binding

Hand written

SANSKRIT

1&fuEufyf[kr /kkrq:i yV~]y`V]y³~] ydkj®a es fy[kuk o d.BLFk&

ijLeSinh& Hkw ]iB] gl~] ue~]

vkResinh& lso~] yÒ~]

2&fuEufyf[kr 'kCn:ikf.k fyf[k, o d.BLFk dfj,&

ckyd] dfo] lk/kq

jek efr] unh

fde~] d%] dk]

3&orZuh lq/kj gsrq izR;sd fnu 3 i`"B laLÑr iBuA

MATHEMATICS

POWER POINT PRESENTATION ON THE GIVEN TOPICS

RATIONAL NUMBER(ODD ROLL NUMBERS)

POLYNOMIALS( EVEN ROLL NUMBERS ) o The PPT should include 15-20 slides. o Slide one – will be your Introduction slide. o Slide Two -- Title of project (name of the chapter). o Slide three includes various topics to be covered. o Slide four – onwards covers complete explanation of topics. o PPTs should have the relevant pictures/videos/animations. o All slides should have similar Formatting. o In the end (last slide) , the topic should be concluded properly.

SOLVE THESE QUESTIONS

1. Add and√ 2 – 3√ 3 . 2. Find six rational numbers between 3 and 4 3. Express 3.242424………………………. into p/q form. 4. Locate √9.8 on number line . 5. Evaluate 993

6. IF 𝟕+√𝟓

𝟕− √𝟓 -

𝟕−√𝟓

𝟕+ √𝟓 = a +

𝟕√𝟓

𝟏𝟏 b Find a and b

7. If a, b, c are all non-zero and a+b+c =0 prove that 𝐚𝟐

𝒃𝒄 +

𝐛𝟐

𝒄𝒂+

𝐜𝟐

𝒂𝒃 =3

8. Express 0.oo323232………………………. into p/q form. 9. Find the remainder when (Y3+Y2+Y+1) is divided by (5+2Y).

10. I f x =1 -√2, find the value of ( x – 𝟏

𝒙)2

11. Simplify by rationalizing the denominator 𝟐√𝟐−√𝟓

√𝟐+𝟑√𝟑 .

12. Simplify by rationalizing the denominator 𝟒√𝟑+𝟓√𝟐

√𝟒𝟖+𝟑√𝟐 .

13. Simplify 𝟕+𝟑√𝟓

𝟑+ √𝟓 -

𝟕−𝟑√𝟓

𝟑− √𝟓

14. Simplify 𝟑√𝟐−𝟐√𝟑

𝟑√𝟐+𝟐√𝟑 .+

√𝟏𝟐

√𝟑−√𝟐

15. Simplify 𝟐

√𝟓+√𝟑 .+

𝟏

√𝟑+√𝟐 -

𝟑

√𝟓+√𝟐

POLYNOMIALS

1. find the value of the polynomial 5x-4x2+3 at x = 2 2. Find P(-1) if p(t) = 2+t+2t2 – t3 3. Find P(-3) if p(x) = (x-1) (x+1) 4. Verify whether x =-1/3 is a zero of polynomial p(x) = 3x+1 or not. 5. Verify whether x = 4/5 is a zero of x+2x2-3x3 or not 6. Factorise: (a – b)3 + (b – c)3 + (c – a)3 7. Factorise: 14x6 – 45x3y3 – 14y6 8. Find the product: (x – 3y) (x + 3y) (x2 + 9y2) 9. If x2 – 3x + 2 divides x3 – 6x2 + ax + b exactly, then find the value of ‘a’ and ‘b’ 10. Find the remainder when x4+x3-2x2+x+1 is divided by x-1 11. Check whether q(t) = 4t3+4t2-t-1 is a multiple of 2t+1 12. Find remainder when x3+3x2+3x+1 is divided by x-½ 13. Find remainder when x3+3x2+3x+1 is divided by 5+2x 14. Find the remainder when x4+x3-2x2+x+1 is divided by x-1 15. Factorise (x-a)3+(x-b)3+(x-c)3 – 3(x-a)(y-b)(z-c) 16. Factorise : 2 y3 - y2 -13y -6 17. Factorise : a3 + 13 a2 +32a +20 18. Expand (4x-3y-2z)2 . 19. IF 3X+2Y=16 and XY=8 Find value of 27X3+8Y3 20. The polynomial p(x)=2x3+kx2-3x+5 and q(x)=x3+2x2-x+k,when d ivided by (x-2) leave the same

remainder a and b respectively .Find the value of k, if a-b=0

HINDI