CREST Science Olympiad Class 10 Sample Papers

Sample PDF of CREST Science Olympiad for Class 10:

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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

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


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?


Study the circuit given below and determine the effective resistance (in Ω) between A and B:


Choose the correct option and complete the following sentence:

An electric motor consists of ____________.
I. rectangular coil of insulated copper wire
II. two poles of a magnetic field
III. split rings
IV. conducting brushes


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.


Olivia measured the focal length of a convex lens by focusing a parallel beam of yellow, violet and green colours at the principal axis. If fy, fv and fg are the respective focal lengths, then which among the following is the correct relation?


Which of the following statements correctly describe the concept of sustainable development?

(i) Planned growth with minimum damage to the environment
(ii) Growth irrespective of the extent of damage caused to the environment
(iii) Stopping all developmental work to conserve the environment
(iv) Growth that is acceptable to all the stakeholders


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

Assertion: According to Döbereiner's, a group of three similar elements arranged in their increasing atomic weights show that the atomic weight of middle is equal to the arithmetic mean of the other two elements.

Reason: Atomic weight is equal to one-twelfth of the mass of a carbon atom.


Which of the following is obtained in its pure form by the reaction of sugar and sulphuric acid?


Fill in the blank:

When Ca(NO3)2 is heated, it gives CaO, NO2(g) and ) O2(g). The correct number of moles of Ca(NO3)2, CaO, NO2(g) and O2(g) are present in the reaction are respectively _________.


Identify the phenomenon by which a new set of the population is formed from the change in the frequency of some genes:

Your Score: 0/10

Answers to Sample Questions from CREST Olympiads:


Practicing sample papers for the CREST Science Olympiad for class 10 is the most effective way to achieve the highest possible score in the exams. Students learn to manage time and solve questions within the time limits by practicing sample papers. Science Olympiad previous years’ question papers for class 10 are considered to be the best means to know the variety and types of questions well that you might come across. Students willing to participate in the CREST Olympiad exams require to have a thorough understanding of the exam pattern which is only possible with regular practice of sample papers. CREST Olympiads makes available Science Olympiad previous year papers online for free download. 

Answers to Sample Questions from CREST Olympiads:

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