The sun is rich

And gladly pays

In golden hours,

Silver days,

And long green weeks

That never end.

School’s out.

The time Is ours to spend.

There’s Little League,

Hopscotch, the creek,

And, after supper,

Hide-and-seek.

The live-long light

Is like a dream,

and freckles come

Like flies to cream.

BRAIN INTERNATIONAL SCHOOL

Class: IX (2021-22)

Holiday Homework

ENGLISH

Individual Activity:

Q1.Comic Strips

We’ve all grown up reading comic strips. So, here’s an opportunity for your creative juices to flow.

● Read the play If I Were You. On the basis of your reading of the play, create your very own

comic strip. ● Read one comic strip to notice how the dialogue is written, and how the action changes in

each frame. ● You may use an A-4 size sheet for the same. ● Only original work shall be marked.

Group Activity:

Students with the below mentioned roll numbers need to collaborate and work upon the following

questions.

GROUP ROLL NUMBERS

A 1-10

B 11-20

C 21-30

D 31-39

GROUP A: Newspaper Making

● You have to create your own digital newspaper. ● Read an existing newspaper. Locate the name of the newspaper. Provide a similar name in

context for your own newspaper. ● Notice the concept of headlines and the structure of articles. You are required to design your

own newspaper in a comparable fashion. ● You may select a theme of your own choice. ● You may choose your own layout of the newspaper you create.

● You may select sections of your own choice (E.g. editorial, comics, poem, sports,

advertisements, etc.) ● Use your own drawings, art or your own photography to depict current events. ● Remember that all the content you put up needs to be original and unique. No copied

articles, news items, comics etc should be provided. ● Your newspaper should not be more than five to six pages.

GROUP B: Brochure Making

● Read the chapter Kathmandu. The text is a travelogue where the author, Vikram Seth talks

about his visit to two sacred places in Kathmandu. ● On the basis of your reading of the chapter, design a travel brochure. ● Remember to be as creative as you can be.

GROUP C: Poster Making

● Make an e-poster. ● Write a slogan to back the endeavor to protect the fast-disappearing tigers. ● You may draw some pictures to add value to your slogan.

GROUP D: Literary Devices

● There are various literary devices used in English prose and poetry that enrich them. ● Given below are ten devices for you to define. Explain with at least three examples for

each.

Personification Oxymoron

Alliteration Paradox

Repetition Hyperbole

Simile Symbolism

Metaphor Anaphora

Note: In all the group activities, names of all the students should be mentioned who have worked on

the activity.

विषय – ह िंदी

कक्षा-निमी

• भागिद् गीता के कोई दो श्लोक अर्थ सह त सुनात े ुए िीडियो बनाएँ । • रैदास के पदों में जिन सिंत कवियों का पररचय हदया गया ै , उनके चचत्रों के सार् सिंक्षेप में उनका पररचय देत े

ुए पािर प्िाइिंट प्रस्तुतत तयैार कीजिए िैस े– नामदेि , सधना आहद ।

FRENCH

Task 1: Make a poster on Eco-friendly ways for garbage disposal and give a heading in French.

MATHS

PROJECT WORK :

The symbolism in Warli art represents the circle of life.

The triangle symbolizes mountain and trees. The square indicates a sacred enclosure for the mother

goddess, symbolizing fertility, while the circle represents the sun and the moon.

● Bring out the artist in you and draw a beautiful Warli art(On an A3 size sheet) ● Make a short video to explain the mathematical association in it. For ref use this link: ● https://youtu.be/Df5zStCmyUE ● Make a short PPT to bring out the history of warli art. For ref use this link: https://

mocomi.com/warli-art/

Note : The project needs to be done in groups of 4-5 students each.

The following LAB Activities needs to be completed in the lab file if still pending

To make a square root spiral of natural numbers

To learn geometrical representation of the factorisation of quadratic polynomials

To verify the algebraic identities

(a+b)3= a3 + b3 + 3ab(a+b)

(a-b)3 = a3 – b3- 3ab (a-b)

RS AGGARWAL home work: To be done in RS Aggarwal register

• EX 3A - Q11-22

• EX 3B – 10-20

• EX 3C - Q26-34

• EX 3D - Q 1 AND 7

• EX 3E - Q2,3 AND 10

• EX 3F - Q15-25

• EX 3G- Q5-8,19-25

• EX 15A-Q12,16,22,24,25

• EX 15 B-Q5,10,23

• EX 15 C-Q1,2,3,4,5,6,7,13,15

SCIENCE

Interdisciplinary Project: THEME: COVID-19

Make a PPT for the project:

● Guidelines: 1. The presentation should be of 10-15 slides

2.Slide one – Name of the School, subject,name of the student ,class and section.

3. Slide two- Index (by using Table)

4. Slide three- Introduction of your topic

5.Slide four to 10 or 15 -Content

6. Last slide – Acknowledgement (It’s a must)

The slides should contain the following information:

(1) History of covid-19:

It will include place of origin, who predicted/detected it first, from the place of origin how

did it travel to other parts of the world?Which countries are badly affected?

(2) Collect information of total positive cases, total recovered cases and the deceased cases each

day from 1st June-15th June’2021of two states i.e. Delhi, Sikkim. After collecting data make

bar graph.

(3) Medicines: What type of medicines, vaccine is being administered? How effective is it?

Which one is better? How does vaccine work? Why the time gap is required between the

two doses of vaccine?

(4) Research and jot down: Whether the vaccine would be effective on the patients who have

already recovered from covid-19 or they have developed enough of the antibodies to fight

with disease? Will a booster shot every year needed?

(5) Make two cartoon figures of corona virus using any app

(6) Write a slogan on covid-19 (positive and motivating) using canva app.

Submit above project in the class notebook on TEAMS.

Assignment

Physics

Q1. Draw velocity-time graphs, when an object has:

(a) Uniformly accelerated motion

(b) Uniformly retarded velocity.

Q2. A marble rolling on a smooth floor has an initial velocity of 0.4 m/s. If the floor offers a

retardation of 0.02 m/s2.Calculate the time it will take to come to rest.

Q3. Rajeev went from Delhi to Chandigarh on his motor bike. The odometer of bike read 4,200 km at

the start of trip and 4,460 km at the end of his trip. If Rajeev took 4h 20minutes to complete his trip,

find the average speed in km/h as well as m/s.

Q4. Answer the following:

(a)State the type of motion shown by a freely falling stone.

(b)When a stone is vertically thrown upwards its velocity is continuously

decreasing. Why?

(c)Give an example of a motion in which average velocity is zero, but the average speed

is not zero.

Q5. The minute hand of a wall clock is 10cm long.Find its displacement and the distance

covered from 10 :00 am to 10:30 am.

Q6. Usha swims in a 90m long pool. She covers 180 m in one minute by swimming from one

end to the other end and back along the same straight path. Find the average speed and

average velocity of Usha.

Q7. Shyam throws a heavy stone out of his small boat. As a result, the boat moves in opposite direction.

Why?

Q8. Calculate the change in momentum of a body weighing 5 Kg when its velocity decreases

from 20m/s to 0.20m/s.

Q9. A car is running at a rate of 72 Km/hour when suddenly brakes are applied so as to stop the

car within 10 m. Find the force of brakes (assume total mass of car and passengers as 800

Kg)

Q 10. A body at rest opposes the forces which try to move it. Name the property called and

give examples.

Q11. What do you mean by balanced and unbalanced forces? Illustrate by giving examples.

Q 12. Sparks coming out of a grinding stone move tangentially. How?

For the following question, two statements are given-one labelled Assertion (A) and the other

labelled Reason (R). Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv)

as given below

(i) Both A and R are true and R is correct explanation of the assertion.

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

(iii) A is true but R is false.

(iv) A is false but R is true.

1. Assertion: A ball thrown vertically upwards has zero momentum.

Reason: Velocity of ball is zero at its highest point of motion.

2. Assertion: An athlete comes running from a distance, he is able to jump longer.

Reason: He does not gain momentum.

3. Assertion: The velocity of an object is decreasing with passage of time.

Reason: The acceleration is negative.

Answer the following questions on the basis of your understanding of the following paragraph.

When a body moves in a circular path with uniform speed, its motion is called uniform circular motion. It’s

possible for a body to move in circular path with uniform speed as long as it is travelling equal distances in

equal intervals of time. But the velocity of the body moving in circle with uniform speed is not uniform.

When a body or object moves along a circular path, then its direction of motion keeps changing

continuously. Since the velocity changes, therefore the motion along a circular path is said to be

accelerated. Force is needed to produce circular motion.

Q1. Why is the velocity of a body moving in circle with uniform speed not uniform? Give reason.

Q2. Name the force needed to make an object travel in circular path.

Q3. Illustrate an example of uniform circular motion in everyday life.

Chemistry

MULTIPLE CHOICE QUESTIONS:

1. Ordinary starch stirred with cold water will result in:

(a) colloid (b) true solution (c) suspension (d) none of these

2. The zig-zag movement of colloidal particles is called:

(a) dipole movement (b) tyndall effect (c) electrolysis (d) brownian movement

3. The compound FeS is not attracted by magnet because:

(a) it is a mixture (b) It is black in colour (c) it does not contain iron

(d) iron has lost magnetic properties

4. Which of the following are homogeneous in nature?

(i) ice (ii) wood (iii) soil (iv) air

(a) (i) & (iii) (b) (ii) &(iv) (c) (i) & (iv) (d) (iii) & (iv)

5. Which of the following has highest kinetic energy?

(a) Particles of ice at 0 °C (b) Particles of water at 0 °C (c) Particles of water at 100 °C

(d) Particles of steam at 100 °C

6. Bose-Einstein Condensate have:

(a) Very low kinetic energy (b) Low kinetic energy (c) High kinetic energy (d) Highest kinetic energy.

Assertion –Reason questions:

Read the assertion and reason statements carefully and write the correct option out of the following

options:

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is the correct explanation of the assertion.

(c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Assertion: Hydrogen is colourless, odourless and non-combustible gas.

Reason: Constituents of a mixture cannot be separated easily by physical

methods.

Assertion: Carbon and silicon are non-metals.

Reason: Non- metals conduct heat and electricity.

Assertion: We use cotton clothes in summer.

Reason: We observe water droplets on the outer surface of glass containing ice.

Assertion: Sugar can be purified by the process of sublimation.

Reason: Solids possess high compressibility.

Answer the questions on the basis of your understanding of the following paragraph

and the related studied concepts.

The heating curve of a pure substance at one atmosphere pressure is shown in the following figure. Answer

the question nos. (a) to (e) are based on the figure:

(a) What is the physical state of substance at points A,B,C,D and E

(b) What is the melting point of the substance?

(c) What is the boiling point of the substance?

(d) What happens to the temperature when the substance is changing its state?

(e) Can the given substance be ice at point A?

Answer the following questions:

1.Why does a desert cooler cool better on a hot dry day?

2. Write differences between three states of matter.

3. Why is tyndall effect is not shown by true solutions?

4. What is meant by pure substance?

5. Give two examples of aerosol, emulsion.

6. How are sol,solution and suspension different from each other?

7. Define the following: (i) Latent heat of fusion (ii) Latent heat of vaporisation

8. Write the characteristics of particles of matter.

9. How does applying pressure help in liquefaction of a gas?

10.Why the temperature remains constant during sublimation?

● Perform the activity at home and write in chemistry practical notebook. To prepare: 1. A true solution of common salt, sugar and alum.

2. A suspension of soil,chalk powder and fine sand in water.

3. A colloidal solution of starch in water and egg albumin in water and

distinguish between these on the basis of –transparencyfiltration, stability.

BIOLOGY

1. (a) Name the cell organelle which helps in packaging and dispatching the material

synthesized over the endoplasmic reticulum to various targets inside and outside the cell.

(b) Name and write function of cell organelle formed by the above cell organelle.

2. Name the organelle bound by the tonoplast.

3. What is cell sap? Give its composition.

4. Assertion: Cell is a structural and functional unit of an organism.

Reason: A cell keeps its chemical composition steady within its boundary.

a) Both A and R are true, and R is correct explanation of the assertion.

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

c) A is true, but R is false.

d) A is false, but R is true.

5. Rahul’s mother was going to make pickle. For this she cut the vegetables into small

pieces and put them in the sun for few hours. Rahul was observing all her activities very

curiously and asked his mother if why she had put the salted vegetables in the sun.

among the following what might be the most appropriate answer for his question?

(a) So that the pickle may get extra flavour.

(b) So that the cut vegetables may absorb the vitamin d as a nutrient from the sun

rays.

(c) So that the vegetables may lose all the water by diffusion and evaporation and

become dry.

(d) So that the salt may get evenly and properly absorbed by the vegetables.

6. Answer the questions based on the passage and related studied concepts:

Unicellular freshwater organisms and most plant cells tend to gain water through

osmosis. Absorption of water by plant roots is also an example of osmosis. Thus,

diffusion is important in exchange of gases and water in the life of a cell. In

additions to this, the cell also obtains nutrition from its environment. Different

molecules move in and out of the cell through a type of transport requiring use of

energy. The plasma membrane is flexible and is made up of organic molecules.

However, we can observe the structure of the plasma membrane only through an

electron microscope. The flexibility of the cell membrane also enables the cell to

engulf in food and other material from its external environment. Such processes are

known as endocytosis.

a) Amoeba acquires its food through a process, termed

(i) Exocytosis (ii) endocytosis (iii) plasmolysis (iv)

exocytosis and endocytosis both

b) The movement of water molecules through a selectively permeable membrane is

called …………….

c) Name the process by which amoeba acquires its food.

d) Mention the compounds which give fluidity and functional specificity to bio

membranes.

7. Prepare a working model / creative charts of animal cell/ plant cell/ bacterial cell or any

one organelle.

8. Perform the activity at home to compare osmosis in normal potato and boiled potato.

Submit the video of it along with the report on it. Mention your conclusion too.

9. Write following practical in your practical notebook:

i) Preparation of stained temporary mounts of (a) Onion peel & (b) Human cheek

cells to record observations and draw their labeled diagrams

ii) Identification of Parenchyma, collenchyma and Sclerenchyma tissues in plants,

striped, smooth and cardiac muscle fibers and nerve cells in animals, from prepared

slides. Draw their labeled diagrams.

10. Learn and revise - The Fundamental Unit of Life

SOCIAL SCIENCE

HOLIDAY HOMEWORK

CLASS IX

➢ Subject Enrichment Activity: Disaster Management Project

Prepare a project on any of the following topic:

● Pandemic Covid-19 ● Earthquake ● Floods ● Wind Energy ● Solar Energy ● Wild Fires

Guidelines to be followed:

1. The total length of the project report should not be more than 10-12 written pages of

A-4 size sheet.

2. The project report should be handwritten and credit will be awarded to original

drawings, illustrations and creative use of eco-friendly material.

3. The project report should be developed and presented in this order

a) Cover page showing project title, student information, school and year.

b) Certificate page

c) Acknowledgement

d) Index- List of contents with page numbers.

e) Introduction

f) Relevant content with headings

g) Summary and conclusions based on findings.

h) Bibliography: should have the Title, author, publisher and if a website the name of the website

with the specific website link which has been used.

➢ Make World clocks to compare six time zones with that of India. You can use disposable

plates, any waste material or paper cuttings (Completely your choice).

➢ Revise the syllabus for PT 1 exams:

History: Chap 1,

Eco: Chap 1,

Geo: Chap 1,

Pol Science: Chap 1 and 2

IT

1. Make a presentation on “Virtual Reality” using Office Sway software.

2. Create a chatbot using any AI based App or software.