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 and choose the correct option: Statement 1: Mars is also called morning star or evening star. Statement 2: Jupiter has the largest satellite.
	a) Statement 1 is correct and statement 2 is incorrect		b) Statement 1 is incorrect and statement 2 is correct
	c) Both the statements are correct		d) Both the statements are incorrect

Q.2	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.3	What happens when the ends of metal wire are not connected to a battery?
	a) Electrons move in random directions		b) Electrons move from negative electrode to positive electrode
	c) Electrons move from positive electrode to negative electrode		d) Protons move in random direction in such a way that their net movement in a unit volume is zero

Q.4	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.5	In a container (cross-sectional area A) a homogeneous solid cylinder of length L (L < H/2) as shown in the figure), cross-sectional area A/5 is immersed such that it floats with its axis vertical at the liquid-liquid surface with length L/4 in the denser liquid (density = 2d) as shown in the figure. The lower density liquid (density = d) is open to the atmosphere. The density D of solid is given by:
	a) 4d/5		b) 4d
	c) 5d/4		d) d/5

Q.6	Fill in the blank: Bronze statues and articles of copper slowly tarnish in air and turn green. This green colour is due to the formation of ___________.
	a) copper carbonate		b) an oxalate
	c) copper sulphate		d) copper oxide

Q.7	Which of the following pair doesn't have the same dimensions?
	a) Force and pressure		b) Pressure and stress
	c) Impulse and momentum		d) Work and energy

Q.8	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.

Q.9	Choose the correct option and complete the following sentence: When the distance between the object and the plane mirror increases ______________.
	a) the image remains same		b) the size of the image will become less than the size of the object
	c) the distance between the image and the plane mirror increases		d) the distance between the image and the plane mirror decreases

Q.10	Which of the following statements is/are true?
	a) CO2 is used in the fire extinguisher.		b) Global warming can cause acid rain.
	c) Burning of coal and diesel releases sulphur dioxide (SO2) gas.		d) Both a and c

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.