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Class 8 Olympiad Science Mock Test 1
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Class 8 Olympiad Science Mock Test 1
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25 Questions

1. Which of the following is a good conductor of electricity?
2. What are the characteristics of light used in a periscope?
3. Which figure shows the correct direction of frictional force when a wooden block is moving up on an inclined plane?
4. The information given in the box is about the organelles present in a cell.
I. Cytoplasm II. Cell wall III. Nucleus IV. Chloroplast
The above cell cannot be an animal cell because of the presence of which of the following cell organelles?
5. Which part of the human eye controls the focus of the eye by varying its thickness?
6. Which of the following properties of plastic makes it most convenient for use?
7. Fresh endometrium is formed every month in
8. Which of the following is NOT a natural polymer?
9. Which of the following is a fossil fuel?
10. Which among the following is a dark coloured, viscous, strong smelling liquid?
11. What may happen due to improper methods of disposal of plastic wastes by burning or throwing them into rivers?
(i) Endanger the lives of aquatic plants and animals.
(ii) Causes air pollution.
(iii) Damages our immune system.
12. A metal spoon has to be coated with copper using electricity. The metal spoon should be
13. Which of these build the hive, collect nectar and pollen, clean the cells and protect the hive?
14. Why are vehicle tyres treaded?
15. Fuels burn to produce heat, light and
16. Which surface among the following will reflect most of the light falling on them?
17. Energy flow in an ecosystem is in which of the following forms?
18. Which of the following shows a modern technology measure used to preserve and conserve the environment?
19. Match the following.
1. Charge P. Seismic zone
2. Lightning Q. Electroscope
3. Earthquake R. Richter scale
4. Seismograph S. Thunder storm
20. Which of the following is not a force?
21. What are the products formed when a mixture of powdered iron and copper (II) oxide are heated strongly in a crucible?
22. What is the nature of electrical charges generated by rubbing two objects?
23. Which of the following pairs of microorganism and disease is wrongly matched?
24. A boy feels difficult to pull the two similar rubber suckers apart as shown below.

This is because
25. A figure of a periscope is shown below. Which labelled parts should be adjusted to view an object placed higher?

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