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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 |
What benefit does yeast gain from carrying out fermentation? |
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Q.2 |
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.3 |
Fill in the blank: To a small quantity of X, few drops of HCl are added. Consequently, colourless, odourless gas is produced. This gas on passing through lime water turns it milky proving the presence of ____________ of X. |
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Q.4 |
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.5 |
In heavy vehicles, diesel is used as a fuel. Which of the following could be the reason for this? |
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Q.6 |
Which of the following shows the correct sequence (in the increasing order) of heat energy received per unit area from the Sun measured on Earth, Mars and Jupiter? |
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Q.7 |
Consider the following statements about the physical and chemical properties of metals and choose the correct option: 1. All metals are ductile. |
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Q.8 |
Fill in the blank: When an iron nail gets rusted, iron oxide is formed _____________. |
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Q.9 |
Which of the following pairs cannot undergo displacement reaction? |
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Q.10 |
Choose the correct option and complete the following sentence: The formation of sulphur trioxide from sulphur dioxide and oxygen is an ____________ reaction. |
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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 : d | Q.4 : b | Q.5 : c | Q.6 : b | Q.7 : b | Q.8 : b | Q.9 : b | Q.10 : c