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

Fill in the blank:

To a small quantity of X, few drops of HCl are added. Consequently, colourless, odourless gas is produced. This gas on passing through lime water turns it milky proving the presence of ____________ of X.

Q.2

Susan was walking on ice, her mother advised her to take smaller steps to avoid slipping. Which of the following could be the reason for the smaller steps?

Q.3

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

Q.4

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 ___________.



Q.5

Select the incorrect statement:

Q.6

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?

Q.7

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.8

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.9

What happens when an impure copper rod is taken as the anode and the pure copper rod is taken as the cathode in an electrolysis experiment?

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

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