CREST Science Olympiad Class 8 Previous Year Paper

Is your child preparing for the Class 8 Science Olympiad? One of the most effective ways to boost their preparation is by solving previous year question papers. These papers help students get familiar with the exam format and the types of questions they can expect.

Why Use Previous Year Papers?

• They include questions from key topics such as Crop Production and Management, Microorganisms, Synthetic Fibres and Plastics, Metals and Non-metals etc.
• They help students improve their accuracy, speed, and critical thinking skills.
• Answer keys are provided for self-evaluation and better understanding of concepts.

Download the Science Olympiad Previous Year Paper for Class 8 (PDF) to help your child revise more effectively and approach the exam with greater confidence.

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Syllabus:

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

Sample Paper Previous Year Paper Marking Scheme Free Study Material

Previous Year Questions

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Q.2

Q.3

Q.4

Q.5

Q.6

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Q.8

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Q.10

Q.1	Which of the following is the best explanation of the statement given below? Metabolism of glucose is considered as combustion.
	a) It involves reaction of glucose molecule with oxygen.		b) Products obtained are CO2 and H2O therefore it is a combustion reaction occurs at slow and steady rate.
	c) This reaction occur as rapid as combustion reaction.		d) This reaction release enormous amount of energy.

Q.2	A man is standing not exactly at the centre of two walls. He fires a gun and hears the first echo after 1 s and the second echo after 2 s. If the speed of the sound is 330 m/s. What is the distance between the walls?
	a) 330 m		b) 360 m
	c) 420 m		d) 495 m

Q.3	In the given question, an assertion and a reason are given. Choose the correct option: Assertion: It is better to use a sharp-tipped nail than a blunt nail. Reason: The tip with the smallest area produces a higher pressure when a small force is applied.
	a) Assertion and reason are true and reason is the correct explanation of the assertion		b) Assertion and reason are true, but reason is not the correct explanation of the assertion
	c) Assertion is true but reason is false		d) Both assertion and reason are false

Q.4	An incident ray strikes a plane mirror at an angle of 15o with the mirror. Identify the angle between the incident ray and reflected ray:
	a) 15o		b) 30o
	c) 150o		d) None of these

Q.5	Which of the following is/are a nitrifying bacterium? Nitrosomonas  Pseudomonas Nitrobacter Lactobacillus
	a) Only 1		b) Both 1 and 4
	c) Both 2 and 4		d) Both 1 and 3

Q.6	In the following question, an assertion and a reason are given. Choose the correct option: Assertion: A normal human eye can clearly see all the objects at a different distance. Reason: The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent.
	a) Both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion		b) Both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion
	c) Assertion is CORRECT, but the reason is INCORRECT		d) Both assertion and reason are CORRECT

Q.7	The friction between the two surfaces does not depend which of the following?
	a) The amount of surface area of the two objects which is in contact with each other.		b) The weight of the object which tends to move on the surface of another object.
	c) The degree of smoothness of the surface of two objects in contact with each other.		d) The degree of roughness of the surface of two objects in contact with each other.

Q.8	Four students made the following statements: Deepika: Shape and size of cells are related to a specific function. Amit: Each cell has its own capacity to perform. Rahul: Some cells have changing shapes. Sachin: Same type of cells are present in all body tissues. Which among the above students made the correct statement(s)?
	a) Rahul only		b) Rahul and Deepika only
	c) Sachin and Amit only		d) Deepika, Amit and Rahul

Q.9	In the given question, an assertion and a reason are given. Choose the correct option: Assertion: In heavy vehicles, diesel is used as a fuel. Reason: Diesel has high power and is convenient.
	a) Assertion and reason are correct and reason is the correct explanation of the assertion		b) Assertion and reason are correct but reason is not the correct explanation of the assertion
	c) Assertion is correct but reason is incorrect		d) Assertion is incorrect but reason is correct

Q.10	Consider the following statements and choose the correct option: 1. Red blood cells do not have nuclei so they can move through blood vessels more efficiently. 2. Every person has a unique DNA that can be found in the cells' nuclei. 3. Only some plant cells have cell walls. 4. Sperm cells are produced by the male reproductive system while the egg cells are produced by the female reproductive system.
	a) Only 1 and 2 are correct		b) Only 1 and 3 are correct
	c) 1, 2 and 4 are correct		d) 1, 2, 3 and 4 are correct

Your Score: 0/10

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 8 -

1. CREST Science Worksheets Package for class 8 - It is a package of 5 worksheets. The worksheets are in the same pattern as the previous year paper. Hence, very useful for preparation. Existing users can purchase additional practice worksheets by following these steps: Login at https://www.crestolympiads.com/login -> Dashboard -> Additional Practice -> Buy & new users can visit https://www.crestolympiads.com/registration
2. CREST Science Olympiad book for class 8 - The book covers topic-wise reading material, chapter-wise practice questions with answer key & contains the previous year paper. The book is available in both physical and pdf formats. Proceed now to purchase the Olympiad book. Also, students can view & download the first chapter of the Science Olympiad book for class 8 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 8.