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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 |
Identify the group(s) which contain all synthetic substances:
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Q.2 |
Fill in the blank: A duster rests on a table, exerting a downward force on the table. The reaction to this force is _____________. |
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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 |
What benefit does yeast gain from carrying out fermentation? |
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Q.5 |
Select the incorrect statement: |
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Q.6 |
Identify the element as per the following statement: An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. |
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Q.7 |
A plastic comb is rubbed with dry hair whereas a glass rod is rubbed with a piece of silk cloth. Which of these will get positively charged? A. Plastic comb |
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Q.8 |
Fill in the blank: Equal force F acts on isolated bodies A and B as shown. The mass of B is three times that of A. The magnitude of the acceleration of A is ___________. ![]() |
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Q.9 |
Fill in the blank: For showing the full image of an object, the size of the plane mirror should be at least ____________. |
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Q.10 |
Read the following statements and choose the correct option: Statement 1: The antibiotic penicillin inhibits the growth of bacteria by blocking the process which helps to build its cell membrane. Statement 2: The cell membrane is selectively permeable because it allows the movement of certain molecules in and out of the cell while the movement of other molecules is prevented. |
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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 : c | Q.2 : b | Q.3 : b | Q.4 : b | Q.5 : a | Q.6 : a | Q.7 : b | Q.8 : a | Q.9 : b | Q.10 : b