9th Practice Sample Paper PDF - Science

KENDRIYA VIDYALAYA SANGATHAN SUPPLEMENTARY EXAM 2023-2024 LUCKNOW REGION CLASS IX SUBJECT: SCIENCE TIME: 2:30 Hrs...

KENDRIYA VIDYALAYA SANGATHAN SUPPLEMENTARY EXAM 2023-2024 LUCKNOW REGION CLASS IX SUBJECT: SCIENCE TIME: 2:30 Hrs MM:80 GENERAL INSTRUCTION: 1)The question paper comprises five sections A, B, C, D, E. There are 39 questions in the question paper. All questions are compulsory. 2)Section A- question no 1to 20 questions and part thereof are of one mark each. These questions contain multiple choice questions (MCQ). 3)Section B- question no 21 to 26 are short type questions, carrying 2 marks each. 4)Section C- questions 27-33 are short answer type questions, carrying 3 marks each. Answer to these questions should in the range of 50-80 words. 5)Section-D-questions 34-36 are long answer type questions carrying 5 marks each. Answer to these questions should be in the range of 80 to 120 words. 6)Section -E questions 37-39 are Case Based Questions carrying 4 marks each. SECTION A Multiple choice questions (each carry one mark) 1.When heat is constantly supplied by a burner to boiling water, then the temperature of the water during vaporisation: (a) Rises very slowly (c) First rises and then becomes constant (b) Rises rapidly until steam is produced (d) Does not rise at all 2.Weeds affect the crop plants by (a) Killing of plants in field before they grow (b) Dominating the plants to grow (c) Competing for various resources of crops (plants) causing low availability of nutrients (d) All of the above 3.Which of the following is connective tissue? (a)Ligament (b)Tendon (c)Blood (d)All of the above 4. Which of the following tissues has dead cells? (a) Parenchyma (b) Sclerenchyma (c) Collenchyma (d) Epithelial tissue 5. Which one of the following nutrients is not available in fertilizers? (a) Nitrogen (b) Phosphorus (c) Iron (d) Potassium 6. Velocity is defined as _____ per time. (a)distance (b)displacement(c)power (d)acceleration 7.______ is not found in xylem tissues. (a)Sieve tubes (b)Xylem parenchyma (c)Tracheid (d)Vessels 8. Find out the correct sentence about manure (i) Manure contains large quantities of organic matter and small quantities of nutrients. (ii) It increases the water holding capacity of sandy soil. (iii) It helps in draining out of excess of water from clayey soil. (iv) Its excessive use pollutes environment because it is made of animal excretory waste. (a) (i) and (iii) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv) 9. A passenger in a moving train tosses a coin that falls behind him. It means that the motion of the train is (a)uniform (b)accelerated (c)retarded (d)along circular tracks 10.Which of the following is the SI units of force? (a)Kgm/s2 (b)Kgm/s (c)Newton-metre (d)Newton 11.Ribosomes are the sites of (a)Photosynthesis (b)Respiration (c)Protein synthesis (d)Absorption. 12. Two atoms are said to be Isobars if ————– (a) They have same atomic number but different mass number (b) They have same number of electrons but different number of neutrons (c) They have the same number of neutrons but different numbers of electrons. (d) None of the above 13.How many electrons are occupied in the M shell? (a) 8 (b) 16 (c) 18 (d) 32 14. A water tank filled upto 2/3 of its height is moving with a uniform speed. On sudden application of the brake, the water in the tank would (a) Move backward (b) Move forward (c) Come to the rest (d) Be unaffected 15. 1 u or 1 amu means (a) 1/12th mass of C-12 atoms (c) Mass of O-16 atom (b) Mass of C-12 atom (d) Mass of Hydrogen molecule 16.The process by which water moves through a semi-permeable membrane from a region of high concentration to a region of lower concentration, thereby equalizing water concentration is called: (a)Evaporation (b)Diffusion (c)Osmosis (d)All of the above Directions Q17-Q20 In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as: (a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). (b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). (c) Assertion (A) is true but reason (R) is false. (d) Assertion (A) is false but reason (R) is true. 17. Assertion: A solution of table salt in a glass of water is homogeneous. Reason: A solution having different composition throughout is homogeneous 18.Assertion: Sound is a form of energy which produces a sensation of hearing in our ears. Reason: When you clap, a sound is produced. 19. Assertion: The flash of lightening is seen before the sound of thunder is heard. Reason: Speed of sound is greater than speed of light. 20. Assertion: When a beam of light is passed through a colloidal solution placed in a dark place the path of the beam becomes visible. Reason: Light gets scattered by the colloidal particles SECTION: B (each carries two marks) 21.Give any two differences between Speed and Velocity. 22. Write down the formulae of (i) Sodium oxide, (ii)Aluminium chloride 23. Explain Newton’s law of motion which is proved by this picture. 24. What do you mean by free fall? 25. Give reasons for the following observations. (a) Naphthalene balls disappear with time without leaving any solid. (b) We can get the smell of perfume sitting several meters away. 26.Draw structure of Animal cell. SECTION: C (Each carries three marks) 27.Define Crop Rotation. What are the advantages of crop rotation? 28. Name the organelles which show the analogy written as under (a) Transporting channels of the cell—— (b) Power house of the cell—— (c) Packaging and dispatching unit of the cell—— (d) Digestive bag of the cell—— (e) Kitchen of the cell—— (f) Control room of the cell 29. What is sound, and how is it produced?What is the audible range of the average human ear? 30. A bus decreases its speed from 80 km h–1 to 60 km h–1 in 5 s. Find the acceleration of the bus. 31. Differentiate between meristematic tissue and permanent tissue 32. Calculate the molecular masses of H2, O2, Cl2, CO2, CH4, C2H6 33.Name A, B, C, D, E and F in the following diagram showing change in its state  SECTION: D (each carries five marks) 34.What is Tissue. Mention the function of parenchyma, collenchyma and sclerenchyma. 35.Explain power. What is 1 watt of power? Calculate the power if the lamp consumes 1000 J of electrical energy in 10 s. 36. Observe the above picture and name the Rutherford’s experiment used for the discovery of Nucleus. Write two conclusions of his experiment. List down limitations of his model. SECTION: E (Each Carries Four Marks) CASE STUDY BASED QUESTIONS 37. We take some ammonium chloride in a china dish and place the china dish on a tripod stand (see Figure). The china dish is covered with an inverted glass funnel. A loose cotton plug is put in the upper, open end of the funnel to prevent the ammonium chloride vapours from escaping into the atmosphere. The china dish is heated by using a burner. On heating, ammonium chloride changes into white vapours. These vapours rise up and get converted into solid ammonium chloride on coming in contact with the cold, inner walls of the funnel (see Figure). In this way, ammonium chloride collects on the inner sides of the funnel in the form of a sublimate and can be removed. (i) What name is given to the phenomenon which takes place? (a) condensation (b) evaporation (c) sublimation (d) vaporisation (ii) One of the following does not undergo sublimation. This one is : (a) Iodine (b) Sodium Chloride (c) Ammonium Chloride (d) Camphor (iii) The conversion of a solid into vapours without passing through the liquid state is called: (a) vaporisation (b) fusion (c) sublimation (d) freezing (iv) During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of : (a) diffusion (b) transpiration (c) osmosis (d) evaporation 38. All living Organisms are made up of cells and these cells perform all the functions essential for the survival of the Organism e.g. Respiration, digestion, excretion etc. In Unicellular organisms, a single cell carries out all these functions and in multicellular organisms different group of cells carry out different functions. Cells were first discovered by Robert Hooke in 1665. He observed the cells in a cork slice with the help of a primitive microscope. Leeuwenhoek (1674), with the improved microscope, discovered the free living cells in pond water for the first time. It was Robert Brown in 1831 who discovered the nucleus in the cell. Purkinje in 1839 coined the term ‘protoplasm’ for the fluid substance of the cell. (i) Who discovered the cell? (a) Robert Hooke (b) Leeuwenhoek (c) Robert Brown (d) T. Schwann (2) Who discovered the nucleus in the cell? (a) Robert Hooke (b) Leeuwenhoek (c) Robert Brown (d) T. Schwann (3) Who coined the term ‘Protoplasm’? (a) Robert Hooke (b) Leeuwenhoek (c) Robert Brown (d) Purkinje (4) What is protoplasm? (a) Unit of life (c) Fluid substance of the cell. (b) Cell organelle (d) Cytoplasm 39. Every object in the universe attracts every other object with a force which is proportional to the product of their masses (m1*m2) and inversely proportional to the square of the distance (d 2) between them. The force is along the line joining the centers of two objects. (i) Gravitational force does not depend on (a) Masses of objects (c) Charges on objects (b) Separation between objects (d) None of these (ii) Force of gravitation varies with masses of object as (a) Product of masses (b) Sum of masses (c) Difference of masses (d) None of these (iii) When mass of one body is doubled then force of gravitation will become (a) Force will remain same (c) Force will become halved (b) Force will become double (d) None of these (iv) What is universal gravitational constant?