Science Olympiad Practice Test 1 — NSO-style (Class 5)

Q4. Ria walks 6 m towards the north. She turns right and walks 4 m. She turns right again and walks 6 m. Where is she now from her starting point?

Q5. In a row of 35 children, Kabir is 12th from the left end. What is his position from the right end?

Q6. Find the missing number.
4 : 64 :: 6 : ___

Q7. How many triangles are there in this figure?

Q8. Which figure comes next in the series?

Q9. Which number is the odd one out?

Q10. 5 March of a year is a Tuesday. What day of the week is 28 March of the same year?

Q11. Which of these is not needed by most seeds to germinate?

Q12. The picture shows a germinating seed. What is the part marked X, which grows down into the soil?

Q13. The seeds of which plant have wing-like parts and are spread by the wind?

Q14. Which of these plants traps and digests insects?

Q15. Leaves take in and give out gases through tiny openings on their surface. What are these openings called?

Q16. Through which part of its body does an earthworm breathe?

Q17. Which of these animals is not a mammal?

Q18. What does the hump of a camel mainly store?

Q19. Siberian cranes fly thousands of kilometres to India every winter. Why do they do this?

Q20. How many bones are there in the skeleton of an adult human?

Q21. The joint at the shoulder lets the arm move in almost all directions. What kind of joint is it?

Q22. What is the main job of the ribcage?

Q23. Which part of the brain helps us keep our balance while walking or cycling?

Q24. In which part of the digestive system is the digestion of food completed?

Q25. A person has bleeding and swollen gums. Lack of which nutrient most likely causes this?

Q26. Which of these spreads malaria?

Q27. Which of these diseases does not spread from one person to another?

Q28. Anil touches a hot pan and gets a small burn on his finger. What should be done first?

Q29. Which of these is a reversible change?

Q30. Salt is to be obtained from salty sea water. Which method should be used?

Q31. Which gas makes up the largest part of the air around us?

Q32. Water vapour high in the sky cools and turns into tiny drops of water that form clouds. What is this change called?

Q33. Why do bicycle tyres have grooves and patterns on them?

Q34. Frosted glass lets some light pass through, but we cannot see clearly through it. What type of material is it?

Q35. Through which of these can sound not travel?

Q36. In which circuit will the bulb glow?

Q37. Which of these objects allows electricity to pass through it?

Q38. Two bar magnets are placed so that the north pole of one faces the north pole of the other. What happens?

Q39. A steel spoon is left in a cup of hot tea. After some time its handle also becomes hot. How does the heat reach the handle?

Q40. Which is the largest planet in our solar system?

Q41. What causes day and night on the Earth?

Q42. Which type of rock is formed when hot molten material from a volcano cools and becomes hard?

Q43. Which of these is a renewable source of energy?

Q44. Look at this food chain:
Grass → Grasshopper → Frog → Snake
Which living thing in this food chain is a herbivore?

Q45. Which of these fuels causes the least air pollution when it burns?

Q46. A seesaw balances when (mass × distance from the middle) is the same on both sides. Tara (30 kg) sits 2 m from the middle. How far from the middle, on the other side, must Arjun (40 kg) sit to balance the seesaw?

Q47. Meena wants to find out whether seeds need water to germinate. Which pair of pots should she compare?

Q48. On a sunny day, a straight pole stands in an open field. At 8 o'clock in the morning, in which direction will its shadow point?

Q49. In a paddy field the food chain is:
Paddy plants → Rats → Snakes → Eagles
If people kill most of the snakes, what is most likely to happen first?

Q50. A raw egg sinks to the bottom of a glass of tap water. After a lot of salt is stirred into the water, the same egg floats. Why?