I, 06-7 SUMMATIVE ASSESSMENT I, 06-7 / SCIENCE IX / Class IX 90 Time Allowed : hours Maximum Marks : 90 8I6LUF... 4.. 4 6 0-0 6. 7 8 0-0 7. 9 4 70-70 8. 9. 4 6 General Instructions :. The question paper comprises of two Sections, A and B. You are to attempt both the sections.. All questions are compulsory. All questions of Section-A and all questions of Section-B are to be attempted separately. 4. Question numbers to in Section-A are one mark questions. These are to be answered in one word or in one sentence. Question numbers 4 to 6 in Sections-A are two marks questions. These are to be answered in about 0 words each. 6. Question numbers 7 to 8 in Section-A are three marks questions. These are to be answered in about 0 words each 7. Question numbers 9 to 4 in Section-A are five marks questions. These are to be answered in about 70 words each. 8. Question numbers to in Section-B are multiple choice questions based on practical skills. Each question is a one mark question. You are to select one most appropriate response out of the four provided to you. 9. Question numbers 4 to 6 in Section-B are questions based on practical skills. Each question is of two marks. Page of 9
SECTION-A State the process by which a living plant cell loses water. Two balls of different masses are thrown vertically upwards with same velocity. Which one of them will rise to the greater height? kg kg m/s 4 6 7 A body of mass kg has a momentum of kg m/s. What is the velocity of the body? How can we obtain coloured component from blue/black ink? Describe the process. () () () (4) Write the location of the following tissues: () Unstriated muscle fibres () Cuboidal epithelium () Adipose tissue (4) Striated muscle fibres State Universal law of gravitation. Name the scientist who gave this law. Burning and Boiling are two different types of changes. List three points between them. 8 9 A sponge can be compressed, yet it is a solid why? Explain. Name the state of matter that has minimum space between particles. (i) (i) 400 K 7 K Convert the following temperatures to celsius scale (i) 400 K 7 K Write the following temperature in Kelvin Scale. (i) Melting point of ice Normal human body temperature of difference Page of 9
0 What is the fundamental unit of life? Who discovered it? How can they be observed? How are epidermal cells designed to perform protective functions? In what ways does it protect the plant? र म न नत समतल पर ल ढ कत ह ए एक बक स क र क बक स पर क र य कर रह क ल बल क क स प रक तत ह? (स त तलत/ अस त तलत) न च ल ढ कन म वस त पर क र य कर रह बल क न स ह? Ram stops a box from sliding down an inclined plane. What is the nature of net force acting on the object (Balanced/ unbalanced)? What are the forces acting on the object in sliding down? (i) (iii) g G 4 Give reasons : (i) A piece of paper takes much longer to fall than a stone through the same distance, when both are dropped simultaneously from roof. The mass is constant everywhere whereas the weight keeps changing. (iii) The value of g keeps changing as we move away from the earth whereas value of G remains constant all over the universe. The velocity-time graph shown below represents the motion of a body : Page of 9
During which interval of time, the body is moving with maximum acceleration? Calculate the average velocity for the entire journey. 0 ms s Draw a graph between distance and time for a car moving with non-uniform speed. A body is accelerating at a constant rate of 0 ms. If the body starts from rest, how much distance will it cover in s? 6 0 g 400 m/s 0.004 s 7 A bullet of mass 0 g is fired with a rifle. The bullet takes 0.004 s to move through the barrel and leaves it with a velocity of 400 m/s. Calculate the force exerted on the bullet by the rifle? 8 (i) (iii) Girdhari lal and his family worked very hard in cultivating wheat and had a good harvest but while keeping the produce they were a little careless and as a result had to bear huge losses. His friend Mukesh told him about the precautions that need to be taken in the next season. Next year he took all precautions for storing grains. (i) List two factors which may be responsible for the losses of grains during storage. What measures should be taken before grains are stored for future use? (iii) Which characters of Girdhari Lal's friend you would like to adopt? Write any three points of difference between Mixed farming and Mixed Cropping. 9 Page 4 of 9
0 Differentiate between a mixture and a compound. You are provided with a mixture containing sand, iron filings, naphthalene and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture. Differentiate between boiling and evaporation. What is the effect of temperature, surface area and wind velocity on evaporation? (i) (iii) (i) Who discovered cell? Which major invention led to the discovery of the microscopic world? Name a single cell which may constitute a whole organism. What are they called? (iii) Every multi - cellular organism has come from a single cell. Justify the statement. kg.67 N (g 0 ms g moon g ) 6 0 0 kg 6 0 4 kg. 0 m An object has mass kg and weight.67 N on moon. Calculate its weight and mass on earth (g 0 ms and g moon g ) 6 Calculate the force exerted by sun on earth and earth on sun if mass of sun is 0 0 kg, mass of earth is 6 0 4 kg, average distance is. 0 m between them. B A Page of 9
B A B A B (e) The distance-time graph of two buses is shown below. The buses start simultaneously in the same direction : 4 How much ahead of A is B when the motion starts? What is the speed of B? When and where will A catch B? What is the difference between the speeds of A and B? (e) Is the motion of both the buses uniform or non uniform? Justify your answer. In India poultry farming is necessary to supply cheap proteins using low cost input. Discuss. Which management practices are important for good production of poultry birds? / SECTION - B Bhoumik added a few drops of conc. hydrochloric acid to a solution and it turned pink. The solution in the test tube is : starch solution solution containing metanil yellow solution of rice extract iodine solution 6 Page 6 of 9
7 On adding iodine solution to white of an egg, the observation of a student will be that the yellow-brown colour of iodine has changed to : pink colour. blue black. no change. brick red colour. Iron sulphide and a mixture of iron filings and sulphur powder were taken in different china dishes. Which of the following observations is correct? 8 Both are heterogeneous. Both are homogeneous. Iron sulphide is homogeneous but the mixture of iron filings and sulphur is heterogeneous. Iron sulphide is heterogeneous while the mixture of iron filings and sulphur is homogeneous. 9 A test tube contains a mixture of iron filings and sulphur powder. To dissolve sulphur powder, which is most commonly used solvent? alcohol ether Carbon disulphide water Page 7 of 9
0 Burning of magnesium results in the formation of magnesium oxide. On adding water to it, it will turn : Blue litmus to red Red litmus to blue Blue litmus and red litmus do not show any change None of the above. (i) (iii) (iv) A student observed the following in a temporary mount : (i) Large irregular flat cells Dense cytoplasm (iii) Blue coloured dense nucleus in the centre (iv) Each cell bounded by a cell membrance The cell is : An onion peel Parenchymatous cell Epithelial cells of human cheek cells Nerve cell A Student observed slides first under low power and then under high power of compound microscope and noticed that certain simple permanent tissues do not have nucleus. They are : Parenchyma Collenchyma Sclerenchyma Both and A mixture of sodium chloride and ammonium chloride is of white colour. They can be separated by : Page 8 of 9
evaporation, sublimation sublimation, crystallization centrifugation, distillation distillation, sublimation 4 While doing experiment the students observed the reading of the scale on the spring balance. These measure the : weight mass acceleration range List two important precautions we must take while preparing a colloidal solution of starch? 6 Kaushal learnt how to determine the boiling point of water in his school laboratory. When he went to Leh in summer vacations he found that there the water boiled at a temperature lower than the boiling point he observed in his school laboratory. How would you explain this? List the necessary steps in conducting the experiment of determining the percentage of water absorbed by the raisins? -o0o0o0o- Page 9 of 9