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: 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.2	Choose the correct option and complete the following sentence: The method of zone refining of metals is based on the principle of _____________________.
	a) higher melting point of the impurity than that of the pure metal		b) greater mobility of the pure metal than that of the impurity
	c) greater solubility of the impurity in the molten state than in the solid		d) greater noble character of the solid metal than that of the impurity

Q.3	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.4	Consider the following statements about the placenta and choose the correct option: (i) It is an intimate connection between fetal membrane and uterine wall. (ii) Fetal blood comes very close to the maternal blood in the placenta. (iii) Fetus gets nutrients, oxygen, etc. from the maternal blood through the placenta and gives off wastes, CO2 etc.
	a) Only (ii) correct		b) Only (i) and (ii) are correct
	c) Only (iii) is correct		d) All of them are correct

Q.5	A box is pushed horizontally along a rough surface and constant acceleration is achieved. If the push is stopped, the box will _________.
	a) continue to accelerate at a lower rate		b) continue to move at constant speed
	c) slow down and finally stop		d) stop immediately

Q.6	A book rests on a horizontal frictionless surface. A horizontal force of magnitude F is applied. This force produces an acceleration:
	a) Only if F is larger than the weight of the book		b) Only while the book suddenly changes from rest to motion
	c) Always		d) Only if the inertia of the book decreases

Q.7	Not all the planets spin on their axis in the same direction, as they go around the Sun. On which planet would you see the sun rise in the west and set in the east?
	a) Mars		b) Venus
	c) Mercury		d) Neptune

Q.8	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.9	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.10	Which one of the following is/are included in protoplasm? I. Nucleus II. Cytoplasm III. Plasma membrane IV. Nucleoplasm
	a) I and II		b) I, II and III
	c) II only		d) I, II, III, IV

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.