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	In the given question, an assertion and a reason are given. Choose the correct option: Assertion: The temperature increases inside the fractionating column on going from the bottom to the top. Reason: The column is not heated at the bottom.
	a) Both assertion and reason are true and reason is the correct explanation of assertion.		b) Both assertion and reason are true, but reason is not the correct explanation of the assertion.
	c) Assertion is correct, but reason is incorrect.		d) Both assertion and reason are incorrect.

Q.2	Which of the following shows the correct sequence (in the increasing order) of heat energy received per unit area from the Sun measured on Earth, Mars and Jupiter?
	a) Jupiter > Mars > Earth		b) Earth > Mars > Jupiter
	c) Jupiter > Earth > Mars		d) Earth > Jupiter > Mars

Q.3	Which of the following can lead to menstruation in a 21-year-old woman after ovulation? A. Sperms not available for fertilisation B. Oviducts blocked C. Sperms available for fertilisation D. Oviducts not blocked
	a) A and B		b) B and C
	c) A and D		d) C and D

Q.4	An elephant has a mass of 3000 kg. Each of its foot has a surface area of 0.4 m2. A lady of mass 45 kg wears stiletto shoes. Each of the stiletto heels has a surface area of 0.01 m2. Assuming there is the equal distribution of mass on each foot. Calculate the maximum possible pressure that could be exerted by a stiletto heel worn by the lady:
	a) 25500 Pa		b) 22500 Pa
	c) 52500 Pa		d) 20000 Pa

Q.5	A force of 16 N is distributed uniformly on one surface of a cube of edge 4 m. Find the pressure on this surface:
	a) 1 Pa		b) 2 Pa
	c) 1/2 Pa		d) 3 Pa

Q.6	When the angle between two plane mirrors is 60o, how many multiple images will be formed by the mirrors?
	a) 5		b) 6
	c) 7		d) 8

Q.7	Different microorganisms taking part in the nitrogen cycle are: (i) Rhizobium in roots (ii) Ammonifying bacteria (iii) Nitrifying bacteria (iv) Denitrifying bacteria Which of them strictly work under anaerobic conditions?
	a) Only iv		b) i and iv
	c) i, ii and iv		d) ii and iv

Q.8	Which of the following statement(s) is not correct?
	a) In a plant cell, vacuoles are absent.		b) A vacuole is bounded by a single membrane.
	c) In Amoeba, contractile vacuole is important for excretion.		d) The flagellum is important for the transport of bacteria.

Q.9	Match the column I with column II: Column I Column II 1.     Dispersion a.     Mirage 2.     Scattering b.     Pin hole camera 3.     Total internal reflection c.     Red light used as traffic signal 4.     Rectilinear propagation d.     Rainbow
	a) 1 – c, 2 – d, 3 – a, 4 – b		b) 1 – d, 2 – c, 3 – a, 4 – b
	c) 1 – a, 2 – c, 3 – b, 4 – d		d) 1 – d, 2 – a, 3 – c, 4 – a

Q.10	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.

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.