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.

>>> Join CREST Olympiads WhatsApp Channel for latest updates. CREST Science Olympiad Previous Year Paper PDF for Class 8:

If your web browser doesn't have a PDF Plugin. Instead you can Click here to download the PDF

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

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	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.2	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.3	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.4	Choose the right option to fill in the blanks below:  To electroplate an article with nickel requires a/an ______(i)______ which must be a solution containing ______(ii)_____ ions. The article to be plated is placed at the _____(iii)_____ of the cell in which the plating is carried out. The _____(iv)______ of the cell is made from pure nickel. The ions which are attracted to the negative electrode and discharged are called _____(v)______.
	a) (i)-electrolyte, (ii)-nickel, (iii)-cathode, (iv)-anode, (v)-cations		b) (i)-solute, (ii)-copper, (iii)-anode, (iv)-cathode, (v)-anions
	c) (i)-electrolyte, (ii)-nickel, (iii)-anode, (iv)-cathode, (v)-anions		d) (i)-solvent, (ii)-nickel, (iii)-anode, (iv)-cathode, (v)-cations

Q.5	Which of the following is an incorrect statement?
	a) Velocity of sound is least in solids.		b) When sound travels through air, the temperature of air is constant.
	c) When sound travels through air, the air molecules vibrate longitudinally.		d) Under similar conditions of temperature and pressure, the velocity of sound is greater than that in oxygen.

Q.6	Match List I (Fuel gases) with List II (Major constituents) and select the correct answer using the codes given below: List I (Fuel Gas) List II (Major Constituent) A. CNG 1. Carbon monoxide, hydrogen B. Coal gas 2. Butane, propane C. LPG 3. Methane, ethane D. Water gas 4. Hydrogen, methane, carbon monoxide
	a) A-2, B-1, C-3, D-4		b) A-3, B-4, C-2, D-1
	c) A-2, B-4, C-3, D-1		d) A-3, B-1, C-2, D-3

Q.7	Select the wrongly matched pairs:
	a) Apiculture - Honey bee		b) Sericulture - Fish
	c) Dairy farming - Milk		d) Poultry farming - Meat

Q.8	Which of the following is/are the correct statement(s)? Alloyed iron is more durable. Alloyed iron is more shining. Alloyed iron is more prone to rusting. Rust is loosely attached to the metal surface.
	a) Only 1		b) Only 3
	c) Only 2 and 4		d) 1, 2 and 4

Q.9	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.10	In the following question, an assertion and a reason are given. Choose the correct option: Assertion: Sound waves cannot pass through the vacuum. Reason: Sound waves are mechanical waves, which require a medium for their propagation.
	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 reason is INCORRECT		d) Assertion is INCORRECT, but reason is 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.