CREST Science Olympiad Class 9 Previous Year Papers

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Syllabus:

Section 1: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell - The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall Ill, Natural Resources, Improvement in Food Resources.

Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1

Sample Paper Previous Year Paper Marking Scheme Free Study Material

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Q.10

Q.1	Choose the correct option and complete the following sentence: The cell organelle which helps in the synthesis of fats in adipose tissue is _________________.
	a) smooth endoplasmic reticulum		b) rough endoplasmic reticulum
	c) mitochondria		d) adipocytes

Q.2	Fill in the blank: During a planned manoeuvre in a space flight, a free-floating astronaut A pushes another free-floating astronaut B, the mass of A being greater than that of B. Then, the magnitude of the force exerted by astronaut A on astronaut B is ___________.
	a) equal to zero		b) equal to the force exerted by astronaut B on astronaut A
	c) greater than the force exerted by astronaut B on astronaut  A		d) less than the force exerted by astronaut B on astronaut A

Q.3	In the following question, an assertion and the reason are given. Choose the correct option: Assertion: Plasma membrane contains bimolecular lipid layer, the surface of which is interrupted by proteins. Reason: Selective permeability of the plasma membrane is explained with the help of a fluid mosaic model.
	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 and reason is false.		d) Assertion is false and reason is true.

Q.4	A ball of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. The height at which the kinetic energy of the body becomes half of the original value is _________.  The acceleration due to gravity is 9.8 ms-2.
	a) 50 m		b) 25 m
	c) 12.5 m		d) 10 m

Q.5	Which of the following statement regarding the matter is/are correct? I. Anything which has mass is matter. II. Anything which occupies space is matter. III. Anything which is felt by our one or more senses is matter. IV. Anything which has no real physical existence is matter.
	a) I and II		b) I, II and III
	c) Only IV		d) I, II, III and IV

Q.6	Consider the following statements and choose the correct option: I. Tapeworm is a hermaphrodite.  II. Roundworm has separate sexes. III. Filaria is caused by a nematode.  IV. Guinea worm is an annelid.
	a) I and II are correct		b) I, II and III are correct
	c) III and IV are correct		d) II, III and IV are correct

Q.7	Which of the following statement is wrong?
	a) Changes in air temperature have no effect on the speed of sound.		b) Changes in air pressure have no effect on the speed of sound.
	c) The speed of sound in water is higher than in air.		d) The speed of light in water is lesser than in air.

Q.8	Match the following: List I List II A. Irregularly thickened cell wall  i. Collenchyma B. Thin cell wall  ii. Xylem parenchyma  C. Lateral conduction of water  iii. Parenchyma D. Coconut husk iv. Sclerenchyma
	a) A-i, B-iii, C-ii, D-iv		b) A-i, B-ii, C-iv, D-iii
	c) A-iii, B-iv, C-ii, D-i		d) A-iii, B-i, C-ii, D-iv

Q.9	Rectify the given statements by replacing the underlined words and select the correct option: (i) The viscous fluid present in the nucleus is called cytoplasm. (ii) Vacuoles are rod shaped structures which oxidise food to provide energy. (iii) Mitochondria contain green pigment chlorophyll and take part in photosynthesis. (iv) Lysosomes take part in synthesis of proteins.
	a) (i)-nucleoplasm, (ii)-Lysosomes, (iii)-Plastids, (iv)-Centrosomes		b) (i)-protoplasm, (ii)-Ribosomes, (iii)-Centrosomes, (iv)-Golgi bodies
	c) (i)-nucleoplasm, (ii)-Mitochondria, (iii)-Chloroplasts, (iv)-Ribosomes		d) (i)-protoplasm, (ii)-Plastids, (iii)-Chloroplasts, (iv)-Ribosomes

Q.10	Which of the following options is correct regarding the given statement? A rubber ball and a lead ball having the same mass, strike normally on a smooth vertical wall with the same velocity. The lead balls fall down after striking the wall but the rubber ball bounces back.
	a) The momentum of the rubber ball is greater than that of the lead ball.		b) The momentum of the lead ball is greater than that of the rubber ball.
	c) The rubber ball suffers a greater change in momentum as compared to the lead ball.		d) Both the balls suffer an equal change in momentum.

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Students can download the CREST Science Olympiad previous year paper pdf for class 9 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.

The CREST Science Olympiad previous year paper pdf for class 9 can be used by students to assess their preparation. They could then learn how to fill up the knowledge gaps in their preparation and identify areas where they lack. They might better prepare for their exam as a result. Additionally, if students practice answering the previous years’ questions, their time management skills improve and as a result they will be able to manage time better in the main exam.

Additional Preparation Resources

Students can also refer to the following resources to level up their CREST Science Olympiad (CSO) exam preparation for class 9 -

1. CREST Science Worksheets Package for class 9 - 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 9 - 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 9 for free.

Note: Don’t forget to download the CREST Science Olympiad past year paper pdf for class 9.