CREST Science Olympiad Class 10 Sample Paper

Help your child excel in the Science Olympiad with the Class 10 sample paper. It's a great tool to practise important topics and understand the exam structure.

What's Included?

  • MCQs covering key concepts from the Class 10 science syllabus.
  • Two sections: Practical Science & Achiever's Section.
  • Answer key with detailed explanations for better understanding.

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Syllabus:

Section 1: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and its Compounds, Periodic Classification of Elements, Life Processes, Reproduction in Organisms, Heredity and Evolution, Light-Reflection and Refraction, Human Eye and Colourful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, Our Environment and its Management.

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

When SO2 is passed through a solution of K2Cr2O7 turns green. Which of the following correctly shows the change in the oxidation state of chromium and sulphur?

Q.2

A convex mirror of focal length f produces an image 1/nth of the size of the object. Calculate the distance of the object from the mirror:

Q.3

Fill in the blank:

Neutral water with pH of about 7 becomes slightly acidic when aerated. This is because ________________.

Q.4

When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while.

Identify the correct reason for the above statement:

Q.5

It is possible to measure the passage of 50 electrons per sec with a certain sensitive device. This corresponds to a current of:

Q.6

Fill in the blank:

When a ray of light falls on a transparent glass plate, a part of it is reflected and a part is refracted. The reflected and refracted rays can be perpendicular to each other for ____________.

Q.7

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

Assertion (A): Children necessarily possess the same blood group as either of the parents.

Reason (R): The gene corresponding to the blood group has three alleles.

Q.8

Identify the correct sequence of fractions obtained when petroleum is subjected to fractional distillation:

  1. Lubricating oil
  2. Petrol
  3. Petroleum ether
  4. Diesel oil

Q.9

Which of the following metals cannot be refined by electrolytic refining?

(i) Au
(ii) Cu
(iii) Na
(iv) K

Q.10

Refer to the given diagram and select the incorrect option regarding X and Y:



Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:

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

Answers to Sample Questions from CREST Olympiads:

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

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