CREST Science Olympiad Class 8 Previous Year Papers

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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

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

In heavy vehicles, diesel is used as a fuel. Which of the following could be the reason for this?

Q.2

In the given question, an assertion and reason are given. Choose the correct option:

Assertion: Animals like camels walk easily in deserts as broad feet exert less pressure on sandy ground.

Reason: Pressure decreases with an increase in surface area.

Q.3

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?

Q.4

In the following question, an assertion and a reason are given. Choose the correct option:

Assertion: The forces acting on a body can be replaced by the resultant force only as regards the motion of the body as a whole.

Reason: The resultant force cannot replace the several forces acting on a body in other respects.

Q.5

Why is just one side of the Moon visible from Earth?

Q.6

Fill in the blank:

When an iron nail gets rusted, iron oxide is formed _____________.

Q.7

Ron placed an object at a distance 2 m from a plane mirror. He then shifted the object 0.5 m away from the mirror. What is the distance between the object and its image?

Q.8

Consider the following statements and choose the correct option:

Statement 1: The ignition temperature of white phosphorus is nearly equivalent to the temperature of the earth.

Statement 2: Combustion of fuel by motor vehicles is an example of spontaneous combustion.

Q.9

Consider the following statements and choose the correct option:

Statement 1: Jack observed a species of single-celled organisms in a laboratory that reproduce by dividing into two daughter cells, each genetically identical to the parent. This type of reproduction is called budding.

Statement 2: Mark observed a type of asexual reproduction in yeast cells, where a smaller cell grows off the surface of a larger cell and eventually separates. This type of reproduction is called regeneration.

Q.10

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

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

Q.1cQ.2aQ.3cQ.4cQ.5bQ.6bQ.7cQ.8dQ.9dQ.10b

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.

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : c | Q.2 : a | Q.3 : c | Q.4 : c | Q.5 : b | Q.6 : b | Q.7 : c | Q.8 : d | Q.9 : d | Q.10 : b

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