Class – IX - KR Mangalam World School, South City I Gurgaon

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SOCIAL SCIENCE : ● PROJECT : Prepare a power point presentation on any one of the following: � 1999 Super Cyclone in Orissa � 2001 Gujarat earthquake � 2004 Tsunami � 2002 Bihar Floods � 2010 Flash floods in Ladakh Guidelines: � Written material should be supplemented by pictures. � Library books and Internet sites should be used as bibliography. � Conclusion should be original interpretations of your thoughts. � Use your creativity. ● Write an article in 150-200 words expressing your views on Ironies of India’s Green Revolution. Substantiate your article with suitable statistical data. -------------------------------------------------------------------------------------------------------------------------------- SCIENCE : PHYSICS • What is the unit of (i) speed (ii) acceleration? • Draw distance – time graph of a body moving at uniform speed. • Show the location of a point on a graph which is 5 m and 45 ○ north of east. • Derive the equation. 1 2 o S = ut + at using a speed time graph. 2 • Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height. • A motor cyclist drives from A to B with uniform speed of 30 km/hr and returns back with a speed of 20 km / hr. find its average speed. • An object starting from rest travels 20m in first 2 sec. and 160m in next 4 sec. what will be the velocity after 7 sec. from the start. • The minute hand of a clock is 7 cm long. Find the displacement and distance covered by it from 9.00 am. To 9.30 am. • Show that for a body thrown vertically upwards, the speed time and velocity time graphs for the complete journey are not identical. • Define radian. Show that 1 radian = 57.3 ○ . CHEMISTRY • The boiling point of water is 100 ○ C. Express this in SI units (Kelvin scale). • Convert the temperature of 573 K to the Celsius scale. • Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
• Explain the following: � We can get the smell of perfume sitting several metres away. � Wet clothes do not dry up easily in rainy season. � We are able to sip hot tea or milk faster from a saucer rather than from a cup. • Few students were doing an experiment in chemistry laboratory. One of them opened the bottle of ammonia and forgot to close its cap. After some time the whole laboratory was filled with irritating smell. The students opened the windows. After sometime, the students felt relief. Explain, what did actually happen. • Draw a labelled diagram to show the sublimation process. What is importance of this process? BIOLOGY • Make a project report on structure and functions of nucleus, chromosome, DNA . (Note �Collect information from internet or any other sources) NOTE: Criteria for marking project- • Timely submission -2 marks •Presentation -2 marks • Content – 2 marks • Viva – 2 marks • Graphics /pictures/flowcharts -2 marks -------------------------------------------------------------------------------------------------------------------------------- GERMAN • Read the given short stories and translate them. Tim ist Tom Tim und Tom sind Zwillinge. Sie gehen in die Real schule. Tim geht in die 8a. Tom geht in die 8b. Tim ist ein guter Schüler. Er hat in Mathe und Geschichte eine Eins. In den anderen Fächern hat eine zwei. Nur in Musik ist er nicht so gut. Da hat er eine vier. Tom ist leider kein guter Schüler. In Mathe hat er eine fünf, in Deutsch, Englisch und Physik eine vier. Nur in Musik ist Tom sehr gut. Tom ist sogar in der Schüler band. Er spielt Gitarre und singt. Seine Band spielt Lieder von deutschen Gruppen. Am Dienstag schreibt Tom eine Mathearbeit. Das ist blöd. Denn am Montag hat Tom ein Konzert mit seiner Band. Das heißt: Noten und Liedertextelernen. Da hat er keine Zeit für Mathematik. Doch Tom hat eine Idee. Er spricht mit Tim. Denn Tim hat am Dienstag Wandertag. Da macht es nichts, wenn er nicht da ist. Er wander einfach nicht mit. Tim schreibt Toms Klassenarbeit. Und Tom lernt Liedertexte. Toll, wenn man ein zwilling ist. Doch nicht so toll: Tim schreibt den falschen Namen auf die Klassenarbeit: Tim, Nicht Tom. Was nun? Mathenachhilfe Hein ist schlecht in Mathe. Er hat eine fünf. ,, So geht das nicht weiter. Du brauchst Nachhilfestundeb’’, sagt Heins Mutter. ,, Oh nein!” ruft Hein. ,, Bitte nicht! Ich hasse Mathe!”. ,, Hör zu. Wir machen es so ‘’, sagt Heins Mutter. ,,du nimmst Nachhilfestunden. Und ich schimpfe nicht mehr über deine laute Musik.” Hein stöhnt. ,,Na gut”, sagt er.
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Class – IX - KR Mangalam World School, South City I Gurgaon

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