CLASS IX SUMMER HHW[2021-22] CLASS IX ENGLISH HOLIDAY HOMEWORK [2021-22]

- HAPPY DAYS ARE HERE AGAIN!!!!!!!

ACTIVITY 1

DESCRIPTION OF PEOPLE Description of People is a biographical sketch of their lives from birth to the present time, highlighting major events and achievements during that span. In short it entails a person’s characteristics and events related to his life and their effects on his life.

• You love your father very much,for he is an ideal father.Describe him in your own words in 100-120 words.

• Mother plays an important role in everyone'lives.Describe her in not not more than 100-120 words.

• Describe your best best friend who is very gentle and polite to you .{100-120 words] • Describe your grandparents:Grandfather/Grandmother who loves you and takes care of

you.{100-120 words} STUDENTS NOTE: When describing a person, keep the following points in mind. Mention the 1. physical features of the person, i.e.

• build, • height, • complexion • facial features, • eyes, • nose, • hair • dress.

2.Take a note of the person’s habits. Value Points for Factual Description of a Person

• Name • Physical appearance • Opinion of others about him.

WRITTEN WORK TO BE DONE ON A4 SHEETS

ACTIVITY 2 STORY WRITING

1.RAVI WAS WEARING A MASK . HE HAD GONE TO THE MARKET TO BUY FRESH FRUITS WHEN SUDDENLY.......COMPLETE IT IN 100-120 WORDS.GIVE A SUITABLE TITLE TOO.

2.ROHIT WAS VERY UPSET WITH THIS LOCK DOWN. BUT HIS FRIEND ANIL ,WITH A POSITIVE ATTITUDE TELLS HIM TO...........................COMPLETE IT IN 100-120 WORDS. GIVE A SUITABLE TITLE TOO.

3.VIKAS RECEIVED A NEW MOBILE PHONE, FROM HIS FATHER, AS A BIRTHDAY PRESENT, TO ATTEND HIS ONLINE CLASSES .ONE DAY.........................COMPLETE IT IN 100-120 WORDS.GIVE A SUITABLE TITLE TO IT.

4.POOJA WAS CRYING THAT DAY WHEN HER BROTHER BROKE HER TREASURED..................... COMPLETE IT IN 100-120 WORDS.GIVE A SUITABLE TITLE TO IT NOTE:ALL THE FOUR STORIES TO BE DONE ON A4 SHEETS

ACTIVITY 3

• Poetic Forms and Devices, Poetryline HYPERLINK "https://clpe.org.uk/poetryline/poetic-forms-

and-devices" HYPERLINK "https://clpe.org.uk/poetryline/poetic-forms-and-devices" HYPERLINK "https://clpe.org.uk/poetryline/poetic-forms-and-devices" HYPERLINK "https://clpe.org.uk/poetryline/poetic-forms-and-devices" HYPERLINK "https://clpe.org.uk/poetryline/poetic-forms-and-devices" HYPERLINK

• FOLLOW THE LINK AND WRITE DOWN ALL THE POETIC DEVICES IN AN A4 SHEETS

ACTIVITY 4.

READ THE CHAPTERS 1.THE FUN THEY HAD 2.THE ROAD NOT TAKEN 3. THE LOST CHILD AND USE YOUR IMAGINATION AND INSERT ART INTEGRATION (a) DRAW A PICTURE OF MARGIE AND TOMMY HAVING ONLINE CLASSES FROM THE CHAPTER'THE FUN THEY HAD' (b) DRAW A SCENE OF A VILLAGE FAIR AS DESCRIBED IN THE STORY 'THE LOST CHILD' (c) RECITE THE POEM 'THE ROAD NOT TAKEN' AND MAKE A PODCAST (d) MAKE 10 WORKSHEETS WITH MCQ QUESTIONS FROM ALL THE ABOVE CHAPTERS.MENTION THE ANSWERS AT THE END OF THE WORKSHEET. (e) MAKE A PPT SHOWING COMPARISON BETWEEN THE SCHOOLS MENTIONED IN THE STORY' THE FUN THEY HAD 'AND THE SCHOOLS MENTIONED IN THE OLD BOOK WHICH TOMMY HAD FOUND IN THE ATTIC.

ACTIVITY 5

READ THE BIOGRAPHY OF THE FAMOUS PERSONALITIES AND MAKE PPTS ON [MIN 5 SLIDES EACH] 1.USTAD BISMILLAH KHAN 2.ALBERT EINSTEIN 3.APJ ABDUL KALAM {READ "THE IGNITED MIND" BY KALAM} DO YOUR RESEARCH.THE PPT SHOULD HAVE: (a)WHERE HE WAS BORN /CHILDHOOD (b)UPBRINGING (c) EDUCATION (d)AIM IN LIFE/ACHIEVEMENTS IN THEIR FIELDS (e) AWARDS (f)INCLUDE YOUR THOUGHT YOU CAN TAKE HELP FROM YOUR BOOK-" BEEHIVE"

ACTIVITY 6

• https://first-english.orgReported speech - English online exercises • FOLLOW THE LINK AND WRITE DOWN THE RULES OF REPORTED SPEECH IN A4 SHEETS

IMPORTANT

ALL THE WRITTEN WORK TO BE DONE IN A4 SHEETS AND NEATLY COMPILED IN A FOLDER HAPPY HOLIDAYS TO YOU ALL

Holiday Homework -Class IX (Geog/Eco)

2021

1.Prepare a Case study on “India and its contact with the world since ancient times”. Cover the following

topics in your Case study.

i) Information related to silk route.

ii) India and its neighbouring countries.

iii) Strategic location of India in the Indian ocean and its contacts with the countries in the east and the

west.

iv) Exchange of commodities and ideas through land and sea routes.

The case study will be done on A4 sheets and following maps will be used for the same.

A) India and its neighbouring countries.

B) Mark Palk Strait, Gulf of Mannar, Arabian sea, Bay of Bengal and Indian Ocean.

C) Paste or draw pictures related to commodities and ideas that were exchanged to and from India.

2.Do the following worksheet on A4 sheet-

Q1. Why the difference of 2 hours is felt between Arunachal Pradesh and Gujarat and what has been

done to have a uniform time for the country?

Q2. List the countries which are larger than India in size.

Q3. Describe briefly the geographic location of India in Asia. What is the significance of India’s

geographic location?

Q4. Collect information on Suez Canal and describe its importance.

3. On political map of India mark the Standard Meridian, Tropic of Cancer, Northern and Southern most

Latitudes, Longitudinal extent of India, States through which Tropic of Cancer passes, mark the largest

and the smallest state and the place located on three sea.

4. Mark all the states of India on a political map and colour each one of them with different pencil

colours.

5.Name the states which have common frontiers with China, Pakistan, Nepal, Bhutan and Bangla Desh.

SUMMER HOLIDAY HOMEWORK: BIOLOGY (CLASS 9)

A) Complete the following experiments in your practical file for Biology:

(i) To prepare a temporary mount of onion peel cell and study its structures.

(ii) To draw a labelled diagram of a Eukaryotic cell and write main functions of

Mitochondria, Golgi apparatus, Lysosomes, Plastids.

B) Complete the following worksheet:

C) Assertion and reasoning-based questions:

DIRECTION : In the following questions, a statement of assertion (A) is followed by a statement

of reason (R). Mark the correct choice as:

(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of

assertion (A).

(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of

assertion (A).

(c) Assertion (A) is true but reason (R) is false.

(d) Assertion (A) is false but reason (R) is true.

1. Assertion : A cell swells up when present in a hypotonic solution.

Reason : More water molecules enter the cell than.

2. Assertion : A plant cell bursts if placed in water.

Reason : High turgor pressure causes bursting of plant cells.

3. Assertion : Mitochondria are called ‘powerhouses’ of the cell.

Reason : Mitochondria produce cellular energy in the form of ATP.

4. Assertion : Plasma membrane is selectively permeable.

Reason : Plasma membrane allows some molecules to pass through it more easily

than others.

5. Assertion : Leucoplasts perform photosynthesis.

Reason : Chloroplasts store fats, starch and proteins.

D) Assessment Activity:

List five ways by which you and your family made efforts to avoid the use of single use plastics

during the summer vacations. Write a catchy slogan to ban the use of single use plastics and

submit this activity by 1st June 2021 for assessment.

*************** Stay Home Stay Safe***********

PHYSICS SUMMER HOLIDAY HOME WORK [2021-

22]

Section – A: CASE-BASED/PASSAGE-BASED INTEGRATED

QUESTION

• The following table shows the speedometer readings of a car:

Time Speedometer readings (km/h)

10 : 25 p.m. 62

10 : 35 p.m. 74

10 : 45 p.m. 90

10 : 55 p.m. 60

11 : 05 p.m. 65

11 : 15 p.m. 38

Based on the above table, answer the questions that follow.

• What is the acceleration of the car from 10:55 pm to 11:05 p.m. if its acceleration is

uniform?

• Convert the speed of the car at 10:45 p.m. into SI unit of speed.

• In which time interval does the speed of car change by maximum value?

• Find the displacement of the car in last 10 minutes of the journey.

Section : B- Understanding and Application Based Probles

• Which speed is greater: 30 m/s or 30 km/h?

• Can uniform linear motion be accelerated?

• What is essential to describe the position of an object?

• Can a body have constant speed but variable velocity?

• Give an example of non-uniform acceleration.

• What would be acceleration of a body if its velocity-time graph is a line parallel to the time axis?

• An object has moved through a distance. Can it have zero displacement? If yes, support your

answer with an example.

• Give an example of a body which may appear to be moving for one person and stationary for the

other.

• What do you understand by instantaneous velocity?

• Given below is the velocity-time graph for the motion of the car. What does the nature of the

graph show? Also find the acceleration of the car.

• Two stones are thrown vertically upwards simultaneously with their initial velocities u1 and u2

respectively. Prove that the heights reached by them would be in the ratio of u12 : u2

2 (Assume

upward acceleration is –g and downward acceleration to be +g).

• The graph given below shows the positions of a body at different times. Calculate the speed of the

body as it moves from

• A to B

• B to C and

• C to D.

• The velocity-time graph shows the motion of a cyclist. Find (i) its acceleration (ii) its velocity and

(iii) the distance covered by the cyclist in 15 second.

• A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the

magnitude of displacement of the farmer at the end of 2 minutes and 20 seconds?

• A particle moves in a circle with O as centre and AO = OB = 5, as radius, as shown in the figure.

It starts from A. Calculate:

• The distance covered, and

• The displacement, when it reaches B.

• During an experiment, a signal from a spaceship reached the ground station in five minutes. What

was the distance of the spaceship from the ground station? The signal travels at the speed of light,

that is, 3 × 108 ms─1.

• A motorcyclist drives from A to B with a uniform speed of 30 kmh─1 and returns back with a

speed of 20 km h─1. Find its average speed.

• An object is dropped from rest at a height of 150 m and simultaneously another object is dropped

from rest at a height 100 m. What is the difference in their heights after 2 s if both the objects

drop with same accelerations? How does the difference in heights vary with time?

• An object starting from rest travels 20 m in first 2s and 160 m in next 4s. What will be the

velocity after 7s from the start?

• An electron moving with a velocity of 5 × 104 m s─1 enters into a uniform electric field and

acquires a uniform acceleration of 104 ms─2 in the direction of its initial motion.

• Calculate the time in which the electron would acquire a velocity double of its initial

velocity.

• How much distance the electron would cover in this time?

Section: C- Practical work

Write the following practicals in your practical file

• Verification of the Laws of reflection of sound.

• Determination of the density of solid (denser than water) by using a spring balance and a

measuring cylinder.

• Establishing the relation between the loss in weight of a solid when fully immersed in

• Tap water

• Strongly salty water with the weight of water displaced by it by taking at least

two different solids.

• Determination of the speed of a pulse propagated through a stretched string/slinky

(helical spring).

Section: D- Activity • Name the fastest train of the Indian railways.

• Plot the distance-time graph for it.

• Calculate its average speed between each station.

• Calculate its average speed from source to destination station.

CLASS 9 SUMMER VACATION WORK (2021-22) (HISTORY)

RISE OF HITLER AND NAZISM

https://sway.office.com/nTyGFf9LkbHGW5sE#content=bvqTur5N6boSMr

- ADOLF HITLER'S ADDRESS AT NAZI CONGRESS NUREMBERG (1938) --- VIDEO

https://sway.office.com/nTyGFf9LkbHGW5sE#content=awcdLUrmMbMgUh

- ADOLF HITLER IN VIENNA --- VIDEO

https://sway.office.com/nTyGFf9LkbHGW5sE#content=8l4FQPKXmdOKXC

- Adolf Hitler's Speech at Krupp Factory in Germany (1935) --- VIDEO

- HITLER'S JOURNEY TO POWER

SPREAD OF NAZISM IN GERMANY

https://sway.office.com/nTyGFf9LkbHGW5sE#content=jjBwdV6tuTBBx6

- VIDEO: SPREAD OF NAZISM IN GERMANY

- LIFE IN NAZI GERMANY - NAZI GOVERNMENT

- LIFE IN NAZI GERMANY - MILITARISATION OF POLITICAL AND SOCIAL INSTITUTIONS

- LIFE IN NAZI GERMANY - NAZI PROPAGANDA

- LIFE IN NAZI GERMANY - SCIENCE AND CULTURE

- LIFE IN NAZI GERMANY - RELIGION

- LIFE IN NAZI GERMANY - LABOUR AND INDUSTRY

- LIFE IN NAZI GERMANY - WOMEN

- LIFE IN NAZI GERMANY - YOUTH

- LIFE IN NAZI GERMANY- EDUCATION

- LIFE IN NAZI GERMANY - JEWS & NON-ARYANS

NAZI PROPOGANDA

CRIME AGAINST HUMANITY

- GANDHIJI'S LETTER TO HITLER ON CRIME AGAINST HUMANITY

ASSIGNMENT-1 (INDIVIDUAL WORK)

Q-1 Based on the information shared above write one page historical account on Nazi Germany with reference to each of the following:

• as a government official who supports Nazi regime. • as a schoolchild in Nazi Germany

• as a Jewish survivor of a concentration camp • as a political opponent of the Nazi regime

(NOTE: All the above sub questions have to be covered.) Q-2 Explain how was Gandhiji's world view different from that of Hitler. Q-3 Rewrite history by imagining what would have happened had Hitler actually paid heed to Gandhi's advice and replied back to him.

ASSIGNMENT-2 (INDIVIDUAL WORK)

- Link to download the book:

http://cbseacademic.nic.in/web_material/doc/novels/3_The%20Diary%20of%20a%20Young%20Girl.pdf

INDIVIDUAL TASK 2: Read the book 'Anne Frank: The Diary of a Young Girl' and attempt the following:

• Write a paragraph on her views on life in Nazi Germany. • Write down what you liked or didn't like about the German Society under the Nazi Regime? • If you could change something, what it would be?

ASSIGNMENT- 3 (GROUP WORK)

INSTRUCTIONS FOR GROUP ASSIGNMENT:

• Subject/Class monitors should divide the class in various groups. • Each group must include 5 students based on the chronological order of their roll numbers. • Eg: Roll No 1 to 5 (GROUP 1), Roll No 6 to 10 (GROUP 2) and so on. • Group leader must be assigned for each group. • Group leaders should coordinate with all the group members and should also maintain records

of participation or non-participation of other group members. • For this group assignment refer to History "Chapter-1 THE FRENCH REVOLUTION" • Activity could be done using Microsoft Word.

GROUP TASK - Each group must prepare the QUESTION & ANSWER as assigned below (From History Chp-1: The French Revolution):

• Very Short Questions (1 Marker) • Short Questions. (3 Marker) • Long Questions (5 Marker)

GROUP WISE TASK ALLOCATION: GROUP 1 : RN 1 TO 5 - Very Short Questions: Sub Unit 1: French Society During the Late Eighteenth Century GROUP 2: RN 6 TO 10 - Short & Long Questions: Sub Unit 1: French Society During the Late Eighteenth Century GROUP 3: RN 11 TO 15 - Very Short Questions: Sub Unit 2: The Outbreak of the Revolution GROUP 4: RN 16 TO 20 - Short & Long Questions: Sub Unit 2: The Outbreak of the Revolution

GROUP 5: RN 21 TO 25 - Very Short Questions: Sub Unit 3: France abolishes Monarchy and Becomes a Republic GROUP 6: RN 26 TO 30 - Short & Long Questions: Sub Unit 3: France abolishes Monarchy and Becomes a Republic GROUP 7: RN 31 TO 35 - Very Short Questions: Sub Unit 4, 5 & 6: Did Women have a Revolution?, The Abolition of Slavery, The Revolution and Everyday Life GROUP 8: RN 36 TO 43 - Short & Long Questions: Sub Unit 4, 5 & 6: Did Women have a Revolution?, The Abolition of Slavery, The Revolution and Everyday Life

HOLIDAY HOMEWORK CLASS IX MATHS [202122]

Millions saw the apple fall, but Newton asked why?

ACTIVITY CORNER

• Draw a Venn diagram of number system

• Prepare a ppt on different types of quadrilaterals and its properties

• Prepare flip cards/pocket cards with identities and formulae of mensuration

• Draw any regular polygon on a coloured paper. Cut it and paste it in the first quadrant on a

Cartesian plane. Plot the vertices of the polygon and write the coordinates of each vertex.

Find the coordinates of its reflection with respect to x axis and also with respect to y axis.

Plot the points in each case and join the points to get the reflected image.

BE IRRATIONAL!!!!!!!

1 - Making a Pi poster

Everybody knows that π is an irrational number; its digits never end and don’t have a pattern.

There is a beautiful artistic way to show that pi doesn’t have any pattern. Write 100 digits of pi and

make a visual presentation. Represent the digits of the number π by using different colours on an

A4 sheet. For instance, represent all ones with red dots, all twos with black dots, all threes with

blue etc,. Use different colours for digits 0 to 9

Buffon’s needle experiment to Estimate π by Dropping toothpicks

Unfortunately most of the students only know π as related to the circumference of a circle;

however, π is everywhere in nature and in the world of mathematics. Google search Buffon’s

needle experiment to estimate the value of pi. Write the procedure to find the value of π

CLASS – 9[HHW 2021-22]CHEMISTRY

Chemistry

HOLIDAY HOMEWORK – 2021 - 2022

“The Wise man doesn’t give the right answers, he poses the right questions.”

A)UNDERSTANDING BASED QUESTIONS

1. Frame five questions(along with answers) each based on the following links: OR Prepare a powerpoint presentation on any one link i) https://youtu.be/r1NYfsZRSUE ii) https://youtu.be/UUm_ZAa8z6k iii) https://youtu.be/xHIj3TNwB3w iv) https://youtu.be/hEbcYP5o_e0 2. Differentiate between the following

• Kinetic energy & Potential energy • Boiling & evaporation • Sublimation & Evaporation

“Logical thinking is a powerful tool that humans used to form ideas and solve problems.”

B)APPLICATION BASED QUESTIONS 3. Give reasons for the following: • We prefer to wear cotton clothes during summer • Evaporation causes cooling. • Gases diffuse faster • Water droplets are formed on the outer surface of the container with ice cold water. • Steam at 1000C causes more severe burns than water at 1000C • Solid CO₂ is known as Dry ice. • Water is liquid at room temperature (2 reasons). • Iron almirah is solid at room temperature(2 reasons). • Smell of hot Rajma/food reaches faster than the cold food. • Acetone cools on the palm. • Desert cooler is effective on a hot dry day but not on a humid day.

3)Particles of matter attract each other.

4. Define the following:

• Rigidity • Fluidity • Diffusion • Latent heat • Latent heat of vaporisation • latent heat of fusion • Boiling • Melting • Boiling point • Melting point • Fusion • Condensation

'Mind mapping is a technique based on memory, creativity, comprehension and understanding.’ 5. Construct a Mind Map showing the properties of physical states of matter OR Prepare a working model to show any scientific principle. OR Make a Beautifully designed Scrap book with complete works of any two of the following Scientists

• Madam Curie • Neils Bohr • J.J. Thomson • Rutherford • Pauli • Max Planck

• Einstein 6. Explain the following with the help of activities.. 1) Sublimation of Ammonium chloride/camphor. 2)Particles of matter are very small. 3)Particles of matter attract each other. 4)Particles of matter have space between them. “Science walks forward on two feet namely theory and experiment but continuous progress is only made by the use of both”

PRACTICAL BASED QUESTIONS

7. Complete the following Practicals in your practical file( in the given order). (LIST OF EXPERIMENTS) 1. Determination of the melting point of ice and the boiling point of water. 2. Preparation of : a. a true solution of common salt, sugar and alum b. a suspension of soil, chalk powder and fine sand in water c. a colloidal solution of starch in water and egg albumin/milk in water and distinguish between these on the basis of transparency

filtration criterion stability 3. Preparation of a. a mixture b. a compound using iron filings and sulphur powder and distinguishing between these on the basis of:

• appearance, i.e., homogeneity and heterogeneity • behaviour towards a magnet • behaviour towards carbon disulphide as a solvent • effect of heat

• Separation of the components of a mixture of sand, common salt and ammonium chloride (or camphor).

• Perform the following reactions and classify them as physical or chemical changes : • Iron with copper sulphate solution in water • Burning of magnesium ribbon in air • Zinc with dilute sulphuric acid • Heating of copper sulphate crystals • Sodium sulphate with barium chloride in the form of their solutions in water

• Verification of the law of conservation of mass in a chemical reaction.

D) ACTIVITY BASED QUESTION

8. With the help of various activities differentiate between physical and chemical changes. (i. Every child should perform 2-3 activities related to this question. ) (ii. Every child should record his or her audio or video( of min 2 min) while performing this activity and upload it on chemistry channel of MS teams) E) Case Based Questions

Q9.Read the given passage and answer the following questions. The molecules of a gas are free to move about in any direction. Because of large intermolecular spaces the gases are easily compressible. The kinetic energy of the molecules of gases is maximum and they move about randomly at a high speed. The randomly moving high speed molecules hit against the size of the container. The pressure exerted by any gas is due to the force exerted by its molecules on the size of the containing vessel.

MCQ 's based on the passage: 1. A gas fills all the space in a container in which was kept because

• the gases have large intermolecular spaces. • the molecules are not free to move • the randomly moving molecules hit against the walls of container

d)the molecules have large intermolecular force of attraction. 2. When pressure is applied on a gas, it is converted to a liquid due to

• increase in intermolecular distance between the particles. • decrease in intermolecular forces of attraction between the particles.

c)increase in kinetic energy of particles. d)increase in intermolecular force of attraction between the particles. 3. Which of the following substances in the gaseous state should be called a vapour ? a)Oxygen b) Sulphur dioxide c) Iodine d) Ammonia Q10. Sublimation is a process by which a solid on heating directly changes into its vapour( gaseous state) that is without changing into a liquid and on cooling, the gas directly changes into a solid. Only those substances whose vapour pressure become equal to the atmospheric pressure much before their respective melting points are capable of undergoing sublimation. Sublimable solids have very weak force of attraction operating between their particles. On heating, the vibration of particles increases and the interparticle force of attraction between them gets reduced. The particles break away from the other particles and escape from the surface of solid as vapour. These vapours condense to give back the solid which is called the sublimate of that substance.

MCQs based on the passage 1. The conversion of solid into vapour without passing through the liquid state is called

a)diffusion b) transpiration c) sublimation d)evaporation 2. Which of the following substances sublime on heating a) Sodium Chloride b)Ammonium Chloride c) Sugar d)Sand 3.Naphthalene balls disappear with time without leaving any solid because of a) melting b) evaporation c)Condensation d) Sublimation

Happy Holidays