CREST Science Olympiad Class 8 Previous Year Papers

>>> 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

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	Choose the correct option and complete the following sentence: A lightning conductor installed in a building ________________.
	a) does not allow the lightning to fall on the building		b) repels the lightning
	c) forces the lightning to fall in an area where there are no buildings		d) conducts electric charge to the ground when lightning strikes the building

Q.2	An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s-1?
	a) 520 m		b) 515 m
	c) 530 m		d) 513 m

Q.3	Fill in the blank: When an iron nail gets rusted, iron oxide is formed _____________.
	a) without any change in the weight of the nail		b) with increase in the weight of the nail
	c) with decrease in the weight of the nail		d) without any change in colour or weight of the nail

Q.4	Fill in the blank: A duster rests on a table, exerting a downward force on the table. The reaction to this force is _____________.
	a) the force of Earth on the duster		b) the force of the table on the duster
	c) the force of Earth on the table		d) the inertia of the duster

Q.5	In the following question, an assertion and reason are given. Choose the correct option: Assertion: Fungi are a large group of organisms which do not photosynthesise. Reason: All fungi are generally made up of fine threads called hyphae.
	a) Both assertion and reason are true and reason is the correct explanation for the assertion		b) Both assertion and reason are true but reason is not the correct explanation for the assertion
	c) Assertion is true but reason is false		d) Assertion is false but reason is true

Q.6	Choose the correct option and complete the following sentence: The formation of sulphur trioxide from sulphur dioxide and oxygen is an ____________ reaction.
	a) endothermic as well as redox		b) endothermic as well as precipitation
	c) exothermic as well as redox		d) exothermic as well as precipitation

Q.7	Select the incorrect statement:
	a) Plant cells are surrounded by a living, rigid outer layer called cell wall.		b) The plant cell wall is made up of cellulose.
	c) The bacterial cell wall is made up of peptidoglycan.		d) Both prokaryotic and eukaryotic plasma membranes are composed of lipids and proteins.

Q.8	Fill in the blank: Equal force F acts on isolated bodies A and B as shown. The mass of B is three times that of A. The magnitude of the acceleration of A is ___________.
	a) three times that of B		b) 1/3 that of B
	c) nine times that of B		d) 1/9 that of B

Q.9	When a ray of light strikes a plane mirror at an angle of 15o with the mirror, what will be the angle of reflection of the ray?
	a) 15o		b) 30o
	c) 75o		d) 85o

Q.10	Arrange the different types of coal in the decreasing order of the quality of coal: (1) Lignite (2) Peat (3) Anthracite (4) Bituminous
	a) 3, 4, 1, 2		b) 4, 2, 3, 1
	c) 2, 1, 4, 3		d) 2, 3, 4, 1

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.

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.