SOF ISO Sample Paper 2024 Class 9

LEBRAT CE F IN SO G SAMPLE PAPER SYLLABUS 2023-24 CLASS Total Questions : 50 Section PATTERN & MARKING SCHEME (1) Logical Reasoning (2) Science Time : 1 hr. (3) Achievers Section 9 No. of Questions 10 35 5 SOF NATIONAL SCIENCE OLYMPIAD Marks per Ques. 1 1 3 SYLLABUS Section – 1 : Verbal and Non-Verbal Reasoning. Section – 2 : Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of the Atom, Cell-The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall III, Natural Resources, Improvement in Food Resources. Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2. LOGICAL REASONING 1. Find the missing character, if a certain rule is followed (C) Wife either row-wise or column-wise. (D) Daughter-in-law A D G 3. In which of the following figures, Fig. (X) is exactly embedded as one of its parts? D I N I Q ? Fig. (X) (A) V (B) W (C) X (D) Y (A) (B) 2. Introducing a woman, Shashank said, “She is the mother of the daughter of my son”. How is the woman related to Shashank? (C) (D) (A) Daughter (B) Sister-in-law SCIENCE 4. The velocity-time graph of a body is given in figure. separation between the bodies is decreased by d/3, v(m/s) is 60 (A) 800% decrease (B) 225% increase (C) 200% decrease (D) 125% increase 20 6. The freezing and boiling points of a substance ‘P’ 0 t(s) 20 30 40 70 are –220°C and –185°C respectively. The maximum acceleration in m/s2 is At which of the following range of temperatures will (A) 4 (B) 3 ‘P’ exist as a liquid? (C) 2 (D) 1 (A) Between –175°C and –210°C 5. Two bodies of masses m1 and m2 exert a force F (B) Between –190°C and –225°C on each other when placed a certain distance d (C) Between –200°C and –160°C apart. The percentage change in force when the (D) Between –195°C and –215°C Sample Paper | Class-9 | 1

7. Leech, Nereis, Scolopendra, prawn and scorpion (D) Both (A) and (B) all have segmented body organisation, but still they 8. Acid rain is produced when rain mixes with gases cannot be classified in one group. Which of the following is the correct basis for the classification such as sulphur dioxide. This will eventually result of these organisms into different groups? in (A) Leech and Nereis belong to the Phylum (A) Lowering of pH and changes of temperature Annelida because they have metamerically in ponds segmented body. (B) Raising of pH in ponds, encouraging growth (B) Scolopendra, prawn and scorpion belong to of microorganisms Phylum Arthropoda, as they possess jointed (C) Lowering of pH in ponds, limiting survival of appendages. aquatic organisms (C) Leech, Nereis and Scolopendra belong to (D) Raising of pH in ponds, limiting development Phylum Annelida because they possess closed of organisms. blood vascular system. ACHIEVERS SECTION 9. When an ideal simple pendulum oscillates between (b) (ii) is a common weedicide. the extreme points P and Q, there is continuous (i) (c) In (iii) , water escapes from revolving nozzle of potential energy and kinetic energy. The potential and falls like rain on the crops. energy depends on the choice of (ii) . Force (d)  (iv) is a technique for developing new acting on the bob of the pendulum is maximum at varieties of crops by cross-breeding two (iii) , and minimum at (iv) . different varieties. (i) (ii) (iii) (iv) (i) (ii) (iii) (iv) (A) Dissipation Reference Mid point Extremes (A) Dhekli Agent Drip Broadcasting level orange irrigation (B) Dissipation Mass Mid point Extremes (B) Dhekli DDT Chain pump Crop (C) Exchange Reference Extremes Mid point rotation level (C) Rahat Siniazine Moat Mixed (D) Exchange Velocity Extremes Mid point cropping 10. Complete the given statements by selecting the (D) Rahat Metachlor Sprinkler Hybridization correct words from the options given below. system (a) (i) is a traditional method of irrigation. SPACE FOR ROUGH WORK ANSWERS NSO – 1. (D) 2. (D) 3. (D) 4. (A) 5. (D) 6. (D) 7. (D) 8. (C) 9. (C) 10. (D) 2 | Sample Paper | Class-9