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
Which of the following is obtained in its pure form by the reaction of sugar and sulphuric acid?
Q.2
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
Q.3
In the following question, an assertion and a reason are given. Choose the correct option:
Assertion: The magnetic field produced by a current-carrying solenoid is independent of its length and cross-section area.
Reason: The magnetic field inside the solenoid is uniform.
Q.4
Which of the following statements about carbon is/are correct?
A. It has a small atomic size. B. Its melting and boiling point is low as compared to other members of the group. C. It shows the electropositive character. D. It shows the maximum tendency of catenation.
Q.5
What happens when 1 mole of ethyne undergoes complete combustion?
Q.6
Arrange the following in the increasing order of ease of oxidation:
(A) SO4-2 (B) F-1 (C) Br-1 (D) OH-
Q.7
Identify the phenomenon by which a new set of the population is formed from the change in the frequency of some genes:
Q.8
Which of the following equations is the summary of photosynthesis?
Q.9
The formation of the ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
Q.10
Why shouldn't we light a candle in a closed room with people?
Your Score: 0/10
Answers to Sample Questions from CREST Olympiads:
Q.1
b
Q.2
c
Q.3
b
Q.4
d
Q.5
c
Q.6
d
Q.7
a
Q.8
c
Q.9
b
Q.10
d
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 : c | Q.3 : b | Q.4 : d | Q.5 : c | Q.6 : d | Q.7 : a | Q.8 : c | Q.9 : b | Q.10 : d
