WINTER HOLIDAY HOMEWORK SESSION: THEME :SCIENCE AND TECHNOLOGY CLASS: IX-B

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1 WINTER HOLIDAY HOMEWORK SESSION: THEME :SCIENCE AND TECHNOLOGY CLASS: IX-B CLASS TEACHER- GEETA GOEL HELPLINE NO Web links Visit site : for more details Helpline: French: TV5, France 24, Radio France International, French media

2 CLASS IX-B HOLIDAY HOME WORK Allocation of work: All the information in Indian context only S.No Name of Students Khyati Ahuja Rishab Chaudhary Vasu Agarwal Naman Adhana Sandali Jain Sankul Sharma Bhumika Goel Sahajdeep Singh Juneja Sarthak Arora Bhavy Goel Abhi Jain Sanchit Mittal DipanshuDevGangwar SharadGarg Shruti Tyagi Agrim Jain Aayushi Garg Yatendra Dhiman Use of technology in the field of Education Small display or model depicting a modern classroom Use of technology in the field of Health A 3D model of a multi specialty hospital with proper labeling of various departments. Use of technology in various industries A 3D model of any modern industry /working model of any technological advancement. Use of technology in various industries Small display/model showing working of any industry and a chart displaying all information with relevant pics. Use of technology in the field of Education Model of a futuristic school of the next century. Use of technology in the field of Defence Model on various missiles of India and a chart displaying all information with relevant pictures. Use of technological advancements in the field of surgery Small display/model showing operation theatre and a chart displaying information. Use of technology in the field of agriculture Model on latest farming methods and a chart displaying the information. Use of technology in Power generation A 3D model of a thermal power plant and a chart displaying the information and its working. Prepare a display of robotics in the daily life and a chart displaying various fields where robots can be used. Use of technology in the field of Defence Small display or model on modern warfare (land,air and water) Use of technology in the field of Health Small model of an operation theatre and a chart showing the details. Use of technology in the field of automobiles A model showing assembling of components and making of cars Also a chart showing latest electric and hybrid cars Use of technology in the field of Defence Small model or display of DRDO and a chart displaying contribution of APJ kalam Use of technological advancements in field of surgery Small model or 3 D display on cosmetic surgery and its various applications Alternative sources of energy Small working model showing use of Alternative sources of energy Use of technology in field of cooking Model displaying a modern kitchen. Use of technology in field of Aeronautics Small display or a 3D model of an aeroplane or space craft

3 Aniket Goel Mayank Pawar Ekansh Agarwal Lakshay arora Suhail Chaudhary Nipun garg Saurabh pratap singh Use of technology in field of telecommunications Small model or a display showing various means of telecommunications. Use of technology in field of telecommunications Make a working model of any gadget( eg walkie-talkie) Use of technology at home Model showing smart energy solutions at home. Use of technology in field of sports Model or display of cricket field and show areas where technology is required Use of technology in field of Agriculture Prepare a model/ display on dairy farming. Use of technology in power plants(thermal/ Nuclear) A 3D model of a nuclear power plant and a chart displaying the information. Use of technology in field of irrigation Make a model of dam and show its functioning on a chart Rubrics for Assessment : Presentation and creativity-4 Marks Accuracy-2 Marks X Factor-2 Marks Timely submission-2 Marks HOLIDAY HOMEWORK SUMMATIVE II ENGLISH-workseet from spiral Song of Rain and modals HINDI- spiral- Chapter no 5,6,7,8 from (sparsh) Poems no- 4,5,6,7 (spiral) FRENCH - spiral comprehension 9 and 10 All writing to be completed MATHEMATICS- NCERT Exemplar questions from chap Quadilaterals and area of paralalogram and triangles. SCIENCE- Attempt the given worksheets for chap diversity in animals and SOCIAL SCIENCE-worksheet in spiral on history of sport, the story of cricket,natural vegetation and wild Life and democratic rights. COMPUTER-Complete Q on page no 372 of the book

4 CLASS IX BIOLOGY HOLIDAY HOME WORK Student s name: To Be Submitted On: Q1. Choose the most appropriate option from the options given: (i) Animals like paramecium are placed in: (a) porifera (b) coelenterate (c) protozoa (d) arthropoda (ii) Ferns are placed in: (a) algae (b) gymnosperm (c) bryophyta (d) pteridophyta (iii) Plant amphibians are: (a) pteridophyta (b) bryophyte (c) protozoa (d) thallophyta (iv) Euglena is a: (a) plant (b) animal (c) protista (d) algae (v) Basic taxonomic category is: (a) population (b) species (c) breed (d) variety (vi) The correct statement for scientific name is: (a) The specific name is written first (b) The generic name starts with small letter (c) The generic name starts with capital letter while specific name starts with small letters (d) It is written in English (vii) The incorrect pair is: (a) leech annelid (b) octopus mollusca (c) fasciola platyhelminthes (d) star fish chordata (viii) Metamerism is the characteristic feature of: (a) chordate (b) annelida (c) mollusca (d) nematode (ix) Respiration in arthropoda occurs through: (a) gills (b) book lungs (c) trachea (d) spiracles (x) Naked seeds are present in: (a) pinus (b) mango (c) mustard (d) lemon Q2. Compare and contrast Poriferans and Ccelentrates. Q3. Why are bryophytes called amphibians of plant kingdom? Q4. How do gymnosperms and angiosperms differ from each other?

5 Q5. Fill up the gaps: (i) Scientific name of man is. (ii) Largest animal phylum is. (iii) Ascaris is commonly called. (iv) Fishes are placed in class. (v) Female of class secrete milk for their child. (vi) Organisms with vertebral column are known as. (vii) Reptile with a four chambered heart is. Q6. Match the items of column A with those in column B COLUMN- A COLUMN-B 1. Earthworm a. Monocot 2. Cockroach b. Dicot 3. Frog c. Annelida 4. Rice d. Amphibia 5. Sunflower e. Arthropoda 6. Sponge f. Arthropoda 7. Corals g. Echinodermata 8. Insects h. Coelenterata 9. Star fish i. Platyhelminthes 10. Flat worm j.porifera Q7. Differentiate between diploblastic and triploblastic development in organisms. Q8. What is a notochord? What does it do? Q9. Identify the following organisms, and write down the name of phylum they belong to:

6 CLASS IX CHEMISTRY HOLIDAY HOME WORK Student s name: To Be Submitted On: Q1.Write atomicity of (i) Ozone (ii) Nitrogen (iii) Neon (iv)sulphur Q2.Calculate the molar mass for each of the following compounds: (i) Fe 2 O 3 (ii) AgNO 3 (iii) Na 2 Cr 2 O 7 (iv)ca(clo 4 ) 2 (v) CuSO 4. 5H 2 O Q3. What is the mass of 5 moles of aluminium atoms?(atomic mass of Al =27 Q4. Calculate the number of molecules in a drop of water weighing 0.75 g. Q5. What weight in grams is represented by (i) 2 mole of CO 2 (ii) 5 mole of NH 3. Q6.Calculate the number of moles for the following: (i) x number of He atoms (ii) 56g He Ans: Q7.What are polyatomic ions? Distinguish between an atom and its ion Ans: Q8.Fill in the blanks: (i)according to Dalton's atomic theory, atoms of different elements differ in, size and chemical properties (ii) is formed by the loss of one or more electrons by an atom. (iii) is the combining capacity of an element.

7 Q9.Name the element having following Latin names: (i) Kalium (ii) Cuprum (iii) Argentum (iv)natrium (v) Stannum (vi)plumbum Q grams of pure water is decomposed by passing electricity. 16 grams of hydrogen and 128 grams of oxygen are obtained. Which chemical law is illustrated by this statement? Ans: Q7.Write the formulae for the following compounds: (i)copper (II) chloride (ii)lithiumacetate (iii) Magnesium nitride (iv)beryllium oxide (v) Sodium sulphate (vi)potassium permanganate (vii)ammonium nitrate (viii) Calcium nitrite (ix)aluminiumsulphate (x)magnisium hydrogen carbonate (xi) Ammonium sulphate (xii) Barium chloride Q2. An element X has a valencyof 4. What will be the formula of its chloride and sulphide? Q11. Write chemical formulas for the compounds in each box. The names are found by finding the intersection between the cations and anions. Example: The first box is the intersection between the zinc cation and the chloride anion, so you should write ZnCl 2, as shown Chloride ZnCl 2 Nitrate Oxide Nitride Sulphate Zinc Iron (II) Iron (III) Silver Lead (IV)