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.1	Consider the following statements about the placenta and choose the correct option: (i) It is an intimate connection between fetal membrane and uterine wall. (ii) Fetal blood comes very close to the maternal blood in the placenta. (iii) Fetus gets nutrients, oxygen, etc. from the maternal blood through the placenta and gives off wastes, CO2 etc.
	a) Only (ii) correct		b) Only (i) and (ii) are correct
	c) Only (iii) is correct		d) All of them are correct

Q.2	A sound wave travels from air to glass. The velocity of sound in air is va and the wavelength is λa. What is the velocity in glass, if the wavelength of the sound wave in the glass is λg?
	a) λg vg/va		b) λg va/λa
	c) λa va/vg		d) λa va/λg

Q.3	The Kyoto Protocol is associated with: reduction in the use of chlorofluorocarbons reduction in the emission of greenhouse gases reduction in the cutting of forest trees reduction in pollution of fresh water sources
	a) Only 1		b) Only 2
	c) Both 2 and 4		d) Both 1 and 3

Q.4	If an object in air is viewed from beneath the surface of water below, where does the object appear to be?
	a) The object appears above its true position.		b) The object appears exactly at is true position.
	c) The object appears below its true position.		d) The object cannot be viewed from beneath the water's surface.

Q.5	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.6	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.7	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

Q.8	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: When visible light is passed through a prism, violet colour is seen at the bottom of the screen. Reason: Prism has the highest refractive index for violet light.
	a) Assertion and the reason are true and reason is the correct explanation of the assertion		b) Assertion and the 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.9	Which of the following statement is/are false? Cellulose is made up of glucose units. Weaving and knitting are two processes to get plastic. Plastics get corroded easily. Plastics are not polymers.
	a) Only 1		b) 2 and 3
	c) 1 and 3		d) 2, 3 and 4

Q.10	Stars twinkle but planets do not twinkle. Which of the following is the reason for the above-given statement?
	a) Stars emit their own light but planets receive light from the stars.		b) Stars do not form a part of the solar system.
	c) Stars form a point source of light while planets are considered as a collection of a large number of point sources of light.		d) During refraction of starlight from the atmosphere, starlight bends more towards the normal as compared to the planets.

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.