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Class 8 Olympiad Science Mock Test 3
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Class 8 Olympiad Science Mock Test 3
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25 Questions

1. Which of the following statements is correct about galaxies?
2. Which of the following is NOT a heavy metal?
3. Which effect is caused by frictional force?
4. The term that describes how the brain interprets the frequency of a sound, is called
5. What are the fragmented outermost layers of earth known as?
6. Which of the following is a natural fibre that comes from plants?
7. Which of the following changes is NOT observed in a boy at puberty?
8. Why is a flame always pointed upwards?
I. Gases produced in flame are cold
II. Gases produced in flame are hot
III. Hot gases are lighter and rise up
9. Earthquakes at two places M and N were measured as 2 and 4. How is the magnitude and their destructive energy at M and N related?
10. Given below are the symptoms of a disease. Identify the disease. i. Fever and itchy rash ii. Pimples blisters and scabs iii. Scabs drop after about two weeks
11. Which one of the following is called pond silk?
12. In which of the following organisms is the cell wall made up of silica?
13. Which natural calamity cannot be predicted accurately in advance?
14. Why is kerosene oil regarded more suitable than petrol in oil lamps?
15. Which one of the following activities will produce least amount of frictional force?
16. Which of the following fabrics is made by mixing two types of fibres?
17. The diagram shows the path of a light ray X directed at a plane mirror.

The correct reflected ray is:
18. Which type of tissue supports, defends and stores food in animals?
19. Sudhakar's bicycle was making a lot of squeaking noise. What should he do to stop the squeaking noise?
20. Which of the following is NOT an effect of frictional force?
21. Which of the following liquid is a bad conductor of electricity?
22. Identify the forms of fuels.
23. The gas liberated when H2SO4 reacts with lime stone is
24. Which of the following is an insulator?
25. What are the weak zones that are prone to slide and cause earthquake commonly known as?

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