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Section 1: Crop Production and Management, Microorganisms, Synthetic Fibres and Plastics, Metals and Non-metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell, Reproduction and Endocrine System, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
Q.1 | Q.2 | Q.3 | Q.4 | Q.5 | Q.6 | Q.7 | Q.8 | Q.9 | Q.10 |
Q.1 |
Which of the following pairs cannot undergo displacement reaction? |
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Q.2 |
What benefit does yeast gain from carrying out fermentation? |
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Q.3 |
Four students made the following statements about the metals: Robert: Metals are malleable. Arya: All metal oxides are acidic in nature. James: Metals have lustre. Peter: Metal atoms have 1, 2 or 3 electrons in the outermost shell. Which among them spoke incorrectly? |
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Q.4 |
Susan was walking on ice, her mother advised her to take smaller steps to avoid slipping. Which of the following could be the reason for the smaller steps? |
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Q.5 |
James noticed that a flame produced by burning wood is orange-yellow, while a Bunsen burner flame is blue. What is the primary reason for this difference in flame colour? |
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Q.6 |
Different microorganisms taking part in the nitrogen cycle are: |
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Q.7 |
The diagram shows the process of purification of copper metal. A thick copper plate A of impure copper and a thin pure copper plate B are immersed in a metal sulphate solution and an electric current is passed through it. ![]() |
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Q.8 |
In the given question, an assertion and a reason are given. Choose the correct option: Assertion: The temperature increases inside the fractionating column on going from the bottom to the top. Reason: The column is not heated at the bottom. |
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Q.9 |
Ron placed an object at a distance 2 m from a plane mirror. He then shifted the object 0.5 m away from the mirror. What is the distance between the object and its image? |
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Q.10 |
When the angle between two plane mirrors is 60o, how many multiple images will be formed by the mirrors? ![]() |
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Your Score: 0/10
Students can download the CREST Science Olympiad previous year paper pdf for class 8 from this page. Each question in the paper carries 1 mark. The answer key for all the questions is also provided on the last page.
One of the most significant advantages of solving the past years’ papers is that it helps students improve their time management skills, strengthens their understanding of concepts and aids them in applying the concepts they have mastered. Also, solving previous years’ papers a few days before the exam can help students to revise the concepts quickly. Therefore, students must refer to previous years' papers before appearing for the final exam as many advantages are associated with it.
Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 8 -
Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 8.
Answers to Previous Year Questions from CREST Olympiads:
Q.1 : b | Q.2 : b | Q.3 : b | Q.4 : c | Q.5 : b | Q.6 : a | Q.7 : a | Q.8 : d | Q.9 : c | Q.10 : a