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

A plastic comb is rubbed with dry hair whereas a glass rod is rubbed with a piece of silk cloth. Which of these will get positively charged?

A. Plastic comb
B. Glass rod
C. Dry hair
D. Silk cloth

Q.2

What happens in the following reaction?

Fe2O3 + 3C → 2Fe + 3CO

Q.3

Choose the correct option and complete the following sentence:

The formation of sulphur trioxide from sulphur dioxide and oxygen is an ____________ reaction.

Q.4

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.

Q.5

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.6

The diagram shows the process of purification of copper metal. A thick copper plate A of impure copper and a thin pure copper plate B are immersed in a metal sulphate solution and an electric current is passed through it.
1. Which metal solution is taken as electrolyte?
2. Which electrode is connected to the positive terminal of the battery?



Q.7

Fill in the blank:

A duster rests on a table, exerting a downward force on the table. The reaction to this force is _____________.

Q.8

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.9

During a lab experiment, Mark used a dye to stain a cell to observe its various structures. Which cellular structure would likely appear colorless or transparent due to this staining process?

Q.10

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

Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:

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

Answers to Sample Questions from CREST Olympiads:

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

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