SOF ISO Sample Paper 2027 Class 9

SAMPLE PAPER SYLLABUS 2022-23 CLASS Total Questions : 50 PATTERN & MARKING SCHEME 9 Time : 1 hr. Section (1) Logical Reasoning (2) Science (3) Achievers Section 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 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 (C) Wife followed 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? (A) Daughter (C) (D) (B) Sister-in-law SCIENCE 4. The velocity-time graph of a body is given in the separation between the bodies is decreased figure. by d/3, is v(m/s) (A) 800% decrease 60 (B) 225% increase (C) 200% decrease 20 (D) 125% increase 0 t(s) 6. The freezing and boiling points of a substance 20 30 40 70 ‘P’ are –220°C and –185°C respectively. The maximum acceleration in m/s2 is At which of the following range of temperatures (A) 4 (B) 3 will ‘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 (B) Between –190°C and –225°C F on each other when placed a certain distance (C) Between –200°C and –160°C d apart. The percentage change in force when (D) Between –195°C and –215°C Sample Paper | Class-9 | 1

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