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Class 8 Olympiad Science Mock Test 7
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Class 8 Olympiad Science Mock Test 7
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25 Questions

1. The structure of a fabric with its component units X, Y linked is given below

Identify the fabric from the following.
2. Which of the given figures represents budding in hydra?
3. Which of the following is an example of a liquid fuel?
4. Which of the following is/are the green plastids?
5. Which of the following requires a pushing force?
6. Which of the following fungi exhibit the characteristics given below?
X – Umbrella shaped fruiting body
Y – Mycelium lies beneath the surface of the soil
Z – Gills are the spore bearing organs
7. Which of the following is NOT a natural polymer?
8. On what factors does the magnitude of non-contact force depend?
9. Which substance has the highest boiling point?
10. Which of the following is the property of thermoplastics?
11. Which of the following has a high melting point, a good conductor of electicity and can be drawn into sheets?
12. Identify the biggest constellation.
13. Metal 'X' reacts very slowly with water but reacts vigorously with steam. Identify metal 'X'.
14. The sex of a child is determined by
15. In which case is friction a disadvantage?
16. The diagram below shows a plant cell. Which part helps to keep the plant cell firm?
17. In which of the following friction plays a helpful role?
18. Which of the following is the safest way to protect yourself from lightning?
19. Which of the following actions demonstrate friction as an evil?
20. Which of the following crops would enrich the soil with nitrogen?
21. Frictional force is independent of area of contact but still brakes of very small contact are not preferred. Why?
22. Which pair of instruments have both the higher amplitude and higher frequency of sound?
23. Which apparatus is used for electrolysis of substances?
24. How is lightning useful to us?
25. Plastic is coated with melamine to make it

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