CREST Science Olympiad Class 8 Sample Paper

Strengthen your child's Science Olympiad preparation with the Class 8 sample paper. It's designed to help students practise key topics and understand the question format.

What's Included?

  • MCQs covering essential Class 8 science concepts.
  • Two sections: Practical Science & Achiever's Section.
  • Answer key with explanations for self-assessment.

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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 Questions

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

Q.1

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

Q.2

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?
Question image

Q.3

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.4

Which of the following correctly defines ignition temperature?

Q.5

What happens in the following reaction?

Fe2O3 + 3C → 2Fe + 3CO

Q.6

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

Q.7

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.

Q.8

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?

Q.9

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.10

Read the following statements and choose the correct option:

Statement 1: The antibiotic penicillin inhibits the growth of bacteria by blocking the process which helps to build its cell membrane.

Statement 2: The cell membrane is selectively permeable because it allows the movement of certain molecules in and out of the cell while the movement of other molecules is prevented.

Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:

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

Answers to Sample Questions from CREST Olympiads:

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

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