SilverZone iOS Sample Paper Class 5

International Olympiad of Science - iOS’ 22 CLASS 5th SAMPLE QUESTIONS The Actual Question Paper Contains 30 Questions. The Duration of the Test Paper is 40 Minutes. 1. Which of these is a third class lever? 5. Choose the correct option for the diagram given below. 1 2 5 (A) (B) 3 (C) (D) 4 (A) 1–First quarter, 2–Waning crescent, 3–Waxing 2. Look at the following picture of food chain: gibbous, 4–Last quarter, 5–Waxing crescent (B) 1–First quarter,2–Waxing crescent, 3–Waxing gibbous, 4–Last quarter, 5–Waning crescent (C) 1–First quarter, 2–Waxing gibbous, 3–Waning crescent, 4–Last quarter, 5–Waxing crescent (D) 1–First quarter, 2–Waxing crescent, 3–Waning crescent, 4–Last quarter, 5–Waxing gibbous Which one of the following is a producer in the above 6. The animal given below does not have: food chain? (A) Deer (B) Lion (C) Plant (D) All of these 3. Which one of the following systems is responsible for transporting nutrients in whole part of our body? (A) Lungs (A) Nervous system (B) Brain (B) Circulatory system (C) Heart (C) Muscular system (D) Gills (D) All of these 7. A farmer throws cow dung in the field to increase its 4. Which of the following steps help in minimising water fertility. After few days he finds that the cow dung pollution? has completely vanished from the field. How does it happen? (A) Do not allow animals and humans to take bath in (A) Cow dung mixes with the soil due to the action of river and other water bodies chemical fertilizers (B) Discharging industrial waste into water bodies (B) Cow dung mixes with the soil due to the action of (C) Discharging untreated sewage into water water bodies (C) Cow dung mixes with the soil due to the action of (D) Washing clothes in the water bodies decomposers (D) Cow dung mixes with the soil due to the temperature 8

International Olympiad of Science - iOS’ 22 8. A force can change I. X is the centre of intelligence. (A) shape of an object II. Z controls the balance of our body and keeps us in (B) direction of a moving object an upright posture. (C) speed of a moving object III. Y controls the movement of lungs and the heart. (D) all of these IV. X represents cerebrum, Y represents cerebellum and 9. Look at the figure given below and choose the incorrect Z represents Medulla. option. (A) II and IV (B) II and III (C) I, II and III (D) I and IV 10. The heaviest and lowermost layer of the atmosphere X is called: (A) Stratosphere (B) Exosphere Y (C) Thermosphere (D) Troposphere Z ANSWERS 1. (B) 2. (C) 3. (B) 4. (A) 5. (D) 6. (D) 7. (C) 8. (D) 9. (B) 10. (D) 9