APEEJAY SCHOOL, SAKET HOLIDAY HOMEWORK 2017 CLASS -IX ENGLISH

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1 APEEJAY SCHOOL, SAKET HOLIDAY HOMEWORK 2017 CLASS -IX ENGLISH 1. Read Three Men in a Boat during the summer break and answer the following questions in your language notebook. ( words) i) Comment on the title Three Men in a Boat ii) Give character sketch of the following in words a) Jerome b) George c) Harris d) Montmorency 2. Follow the links given and attempt the grammar exercises. Take printouts and paste them in the language notebooks Suggested Readings: 1. Pride and Prejusice by Jane Austen 2. To kill a Mockingbird by Harper Lee 3. The Canterville Ghost by Oscar Wilde 4. The Hounds of Baskerville by Arthur Conan Doyle ह न द (क) -आप सभ छ त अपन सह यक प स तक स चयन क प थम कह न ग ल ल क प ठन कर उस कह न क पढ़न क पश च त ननम नललख त प श न क उतर अपन क यय -प स स तक म लल ज व जन त ओ क प लन उच त, इस कथन क आध र पर अपन व च र व यक त कररए 2. पश -पक य म भ सम व दन त -ग ल ल कह न क आध र पर इस कथन क स थयकत लसद कररए ( ) -द श म ब ल ट ट न ल ए ज न क घ षण ई इस व षय पर द लमत क ब च ल भ (50) शब द म सम द ललख ए FRENCH Écrivez un article détaillé sur les avantages d apprendre la langue française ( mots). Parlez des chemins que vous pouvez poursuivre après avoir appris cette langue. Pourquoi aimez vous cette langue. Faites-le dans votre cahier de classe. ननम नललख त क यय उत तरप स स तक म क स जय मखणक स स क त व य करण म स, 1 त न अपठठत दय श स स क त 2 मञ ज ष क सह यत स त न पत ल न (प ष ठ स ख य 64स 70) 3 उपपद व भस क त क ननयम क ललख ए तथ उन ननयम क स पष ट करन क ललए द -द उद हरण भ ललख ए

2 MATHEMATICS Students need to solve three assignments in their assignment notebook attached herewith. a) Assignment 1 on Number system b) Assignment 2 on coordinate geometry c) Assignment 3 on Herons formula SCIENCE Students need to solve three assignments in the respective subject notebooks attached herewith. Collect seeds throughout summer and spread them in the monsoon. Carry them everywhere and help in growing plants in barren land. SOCIAL SCIENCE Make a project on disaster management. 1. Discuss the concept of disaster management, its significance in dealing with hazards. 2. With the example of a case study (Tsunami in 2004, India), discuss the role of disaster management. Try to bring out the truth that disaster management is effective in dealing with such natural calamities. 3. Discuss the Do s and Don ts during and after a tsunami. The project work will be assessed under subject enrichment activity and will be of of 5 marks PREPARATION AND SUBMISSION OF PROJECT REPORT 1. Each student will prepare and submit her/his project report after the summer vacation. Following essentials are required to be fulfilled for its preparation and submission- the project should be made from eco-friendly products without incurring too much expenditure. The Project Report should be handwritten by the students themselves. 2. Credit will be awarded to original drawings, illustrations and creative use of materials. 3. The project report will be presented in a neatly bound simple folder. 4. The project report will be developed in this sequence- Cover page showing project title, student information, school and year List of contents Acknowledgements and preface (acknowledging the institution, offices and libraries visited and person who have helped). 5. All the photographs and sketches should be labeled and related to the theme. COMPUTER Design a website using Kompozer/HTML/Frontpage on any one the following topics: a) Cyber Safety b) Digital India The website should consist of at least 6 pages with good formatting, aesthetics and technical aspects. your website with your name, class and section to school -id skool.saket.del@apj.edu

3 APEEJAY SCHOOL,SAKET SESSION : ASSIGNMENT 1-(CHEMISTRY) Q1. State characteristic property of (a) Solids (b) Liquids (c) Gases Q2. Why is a solid not compressible? Q3. Give an example of compressed gas used at home. Q4. What is the physical state of the water at (a) 250 C (b) 100 C Q5. An inflated balloon collapses when pricked. Name the property of gases exhibited by this. Q6. Define diffusion. Explain the effect of change of temperature on diffusion. Q7. Solids are generally rigid. What do you say about a rubber band which changes its shape when stretched? Is it solid? Q8. Define density. What is its unit? Q9. What is sublimation? Give two examples. Q10. Define melting point. Q11. Write the name of the process of the following state change. (a) Solid to liquid (b) Liquid to solid (c) Liquid to gas (d) Gas to liquid (e) Solid to gas (f) Gas to solid Q12. Why does temperature remain same during melting when all the ice changes into water? Q13. Which property of matter is helpful in survival of aquatic plants and animals? Q14. What do you mean by (a) Latent heat of fusion (b) Latent heat of vaporization Q15. State the relation to change the temperature of Kelvin scale to Celsius scale. Q16. Differentiate between a gas and vapour. Q17. Why does food cook faster in a pressure cooker? Q18. Iron ball is solid and water is a liquid. How do two differ with respect to their shape, size, compressibility and diffusion? Q19. Give one example of each of the following (a) Gas in gas diffusion (b) Liquid in liquid diffusion (c) Solid in solid diffusion Q20. Name the two main factors responsible for the difference in the three states of matter. Q21. An inflated air balloon collapse when pricked. Name the property of gaseous state shown by this fact. Q22. In substance A, the forces of attraction between particles are very weak and the distance of separation between the particles is large. Predict the following properties of the substance (a) Shape and size (b) Diffusion (c) Physical state (d) Compressibility Q23. Give an example to show that particles of matter continuously moving. Q24. Why is ice at 273K more effective in cooling than water at the same temperature? Q25. Which cause more severe burns, steam or boiling water at same temperature? Why?

4 1. State the function of chromosome in a cell. APEEJAY SCHOOL,SAKET SESSION : ASSIGNMENT 2 -(BIOLOGY) 2. Write two similarities and one dissimilarity between mitochondria and plastid. 3. Division of labour exists even at intracellular level, justify the statement by giving two examples. 4. Identify and name the following cell structure: a) the undefined nuclear region of prokaryotic cell b) site of energy release inside the cell 5. List any two structural differences and two similarities between animal cell and plant cell. 6. What would happen if an animal cell is kept in distilled water for 24 hrs. 7. When a living plant cell loses water through osmosis, there is contraction of the contents of the cell away from the cell wall. What is this phenomenon called? 8. Write two points of difference between nuclear region of bacterial cell and animal cell. 9. Which structure present in the nuclear region of living cell bears genes? 10. Explain why chloroplast are only present in plant cell? 11. State the function of chromosome in a cell. 12. Write two similarities and one dissimilarity between mitochondria and plastid. 13. Name the cell organelle that you would associate with elimination of old and worn out cells. 14. List two types of plastids and state one function of each. 15. Name two cell organelles that contain their own genetic material. 16. Division of labour exists even at intracellular level, justify the statement by giving two examples List any two single celled organisms. 18. Draw a diagram of plant cell and label its any two parts. 19. What is the advantage of multicellularity over unicellularity? 20. What is the function of SER in liver cells of vertebrates? 21. Why viruses are not supposed to be living? 22. Why dry raisins placed in water swell up? 23. Write the contribution of (a) Robert Hooke, (b) Leeuwenhoek (c) Robert Brown 24. Draw a large diagram of an animal cell as seen through aan electron microscope. Label the parts that carry on the function of Respiration, secretion, protein synthesis, transport of material. 25. Which substance is responsible for transfer of characters from one generation to another?

5 26. Complete the table- Organelle Description Function Animal, Plant or CELL WALL CYTOPLASM NUCLEUS NUCLELOUS ENDOPLASMIC RETICULUM Rigid, tough, made of cellulose Thin, covering, protects cells Jelly like substance that contains organelles Thin covering over the nucleus Small dark area in the nucleus In the nucleus, made of DNA and protein, contains genes Clear, tubular system of tunnels throughout the cell Protects and supports the cell transport, moves materials in and out of the cell, communication Controls all of the cell s activities Covers and protects the nucleus Produces ribosome s Transports materials like proteins around the cell Plant RIBOSOME Makes proteins MITOCHONDRIA Supplies energy or ATP for the cell through cell respiration using glucose and oxygen VACUOLE Large open storage area, smaller in animal cells CHLOROPLAST LYOSOME Green structures that contain chlorophyll Small bags with tubes connecting them Small, round structures, containing enzymes Captures sunlight and uses it to produce food through photosynthesis Packages and secrets proteins for use in and out of the cell CENTRIOLE Small cylindrical Used with the spindle apparatus during mitosis Plant Animal

6 27. Complete the following table by writing the name of the cell part or organelle in the right hand column that matches the structure/function in the left hand column. A cell part may be used more than once. Structure/Function Cell Part Stores material within the cell Closely stacked, flattened sacs (plants only) The sites of protein synthesis Transports materials within the cell The region inside the cell except for the nucleus Organelle that manages or controls all the cell functions in a eukaryotic cell Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color Digests excess or worn-out cell parts, food particles and invading viruses or bacteria Small bumps located on portions of the endoplasmic reticulum Provides temporary storage of food, enzymes and waste products Firm, protective structure that gives the cell its shape in plants, fungi, most bacteria and some protests Produces a usable form of energy for the cell Packages proteins for transport out of the cell Everything inside the cell including the nucleus Site where ribosomes are made Provides support for the cell, has two subparts Name for the collection of DNA in the nucleus of eukaryotic cells Consist of hollow tubes which provide support for the cell Composed of a phospholipid bilayer Longer whip-like structures used for movement

7 APEEJAY SCHOOL SAKET SESSION : ASSIGNMENT-3 (PHYSICS) Q1. Identify the kind of motion in the following casesa. A car moving with constant speed turning around a curve. b. An electron orbiting around its nucleus. c. A pendulum moving to and fro. d. A horse cart travelling along a straight road. Q2. The speed-time graph for the motion of an object in a straight path is a straight line parallel to the time axis. a. identify the nature of motion of the body. b. Find the acceleration of the body. c. draw the shape of the distance-time graph. Q3. Draw the distance-time graph for the uniform and non-uniform motion of an object. Q4. A bus starting from rest moves with uniform acceleration of 0.1m/s 2 for 2 min. Find a. The speed acquired b. The distance travelled. Q5. How will the equations of motion change for an object moving with a uniform velocity? Write them. Q6. A car starts from rest and moves along the X-axis with a constant acceleration of 5m/s 2 for 8sec. If it then continues with constant velocity, what distance will the car cover in 12 seconds since it started from the rest? Q7. A motorist drives from A to B with a uniform speed of 30km/h and returns back with a speed of 20 km/h. Find its average speed and the velocity. Q8. Draw the velocity-time graph of a stone thrown vertically upwards and then moving downwards after attaining the maximum height. Q9. A motorist accelerates from 6m/s to 16m/s in 5 sec. Find the acceleration and the distance covered in during this time. Q10. A circular track has a circumference of 3140m with AB as one of its diameter. A cyclist moves along the circular path from A to B with a uniform speed of 10m/s. Find the a. Distance covered by the cyclist. b. Displacement of the cyclist c. Time taken by him in reaching B from A. Q11. The following table gives the data about the motion of a car. Time (Hr) am am am am am am am am Distance(Km) a. Use the table to plot the distance-time graph. b. When was the car travelling at the greatest speed? c. Find the average speed of the car. d. Find the distance covered between 8.40 am and 9.15 am. Q12. In the following speed-time graph of a vehicle calculate a. The acceleration between t=0s to t=10s b. The retardation between t=35s to t=40s. c. The total distance covered by the vehicle during the entire journey.

8 . Q13. A) The speedometer reading of a vehicle is shown below. Find the acceleration and displacement. Time Speedometer Reading ( Km/hr) 9.25 AM AM 72 B) The vehicle travels at 54km/hr for the first 20s, 36km/hr for the next 30s and finally 18km/hr for the next 10s. Find its average speed. Q14. The graph below shows the positions of a body at different times. Calculate the speed of the body during the time intervals a. t =2s to t=5s b. t=5s to t=7s and c. t=7s to t=9s.

9 APEEJAY SCHOOL SAKET Session Assignment 1

10 APEEJAY SCHOOL SAKET Session Assignment 2

13 APEEJAY SCHOOL SAKET Session Assignment 3

Organelle Description Function Animal, Plant or Both

Biology Name: Date: Period: Organelle Description Function Animal, Plant or CELL WALL Rigid, tough, made of cellulose Protects and supports the cell Plant CELL MEMBRANE Thin, covering, protects cells Protects