Science Olympiad Questions for Class 10

NSO exam helps the students revise their syllabus practically and in a most exciting way. The NSO Sample Paper Class 10 will ensure that the student is well-prepared for the Olympiad exam. You will find all the details of examples, such as the question type, range, and pattern, by accessing the NSO Previous Year Papers Class 10.

These sample papers are compiled by a subject expert. A student can download Science Olympiad Questions for Class 10 Pdf. This Olympiad is divided into two levels, each with some requirements. Thus, for level 1, there are no such requirements, the student can easily apply, and there is no cut-off. But for level 2, the eligibility criteria for a selected student includes-

  • The Top 25 rank holders are selected to opt for the Level 2 Olympiad exam.
  • The topper of the class participating from each school where at least ten more students should participate in the test should have obtained at least 50%.
  • The gold medal winners are not qualified for the second level.
  • The top 5% of students who appear in the first level will be able to go to the second level.

How can you prepare for the NSO exam?

  1. Understand the pattern of NSO

    It is essential to go through the pattern to prepare for the Olympiad. The example consists of 3 sections and a total of 35 questions.

  2. Understand the standard of question

    The difficulty level of the question varies. Thus, mainly the questions are conceptual but also test the student's logical skills and observational background. So, before you start preparing, go through the previous sample papers.

  3. Know the relevant books

    60% of the exam comes from the current class, and 40% is from the previous class. All the questions are from your school syllabus. So you can prepare from books offered by ICSE, CBSE, and the state board.

Syllabus for Science Olympiad Exams

These are the chapters covered in most of the Science Olympiad Exams.

Chemical Reactions and Equations

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Acids

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Bases and Salts

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Metals and Non-metals

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Carbon and Its Compounds

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Periodic Classification of Elements

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Life Processes

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Control and Coordination

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Reproduction in Organisms

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Heredity and Evolution

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Light-Reflection and Refraction

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Human Eye and Colourful World

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Electricity

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Magnetic Effects of Electric Current

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Sources of Energy

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Our Environment and Its Management

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Free Sample Questions for

Question 1

Female sex hormones are produced by the
A. endometrium.
B. ova.
C. ovaries.
D. fallopian tubes.

Question 2

The elements iron, cobalt and nickel are known as the iron triad. A special characteristic of these three elements is that they
A. are often used in making coins.
B. will not form compounds.
C. can be magnetized.
D. only have one neutron.

Question 3

Which is a description of cellular respiration?
A. aerobic production of ATP from glucose
B. inhibition of the enzyme that produces prostaglandins
C. oxidation of glucose to produce two pyruvate molecules
D. exchange of gases by the lungs

Question 4

A plant captures the Sun’s rays to make glucose. Which characteristic of life is demonstrated?
A. cell organization
B. obtaining energy
C. homeostasis
D. reproduction

Question 5

What are chromosomes?
A. one of the parts that make up a nucleotide
B. the building blocks of DNA
C. thread-like structures in the nucleus
D. a section of DNA that carries genetic code for a characteristic

Question 6

A diagram representing the inheritance of a trait or characteristic within a family is a
A. pedigree.
B. pie chart.
C. family tree.
D. Punnett square.

Question 7

How can bacteria change nitrogen into forms that plants can use?
A. nitrogen fixation
B. denitrification
C. evaporation
D. condensation

Question 8

Which of the following substances, when dissolved in water, increases the concentration of hydrogen ions?
A. "H"_2"SO"_3
B. NaOH
C. "H"_2"O"
D. "SO"_2

Question 9

The process by which individuals with successful traits survive and pass on their traits to their offspring is
A. mutation.
B. natural selection.
C. growth.
D. ecosystem service.

Question 10

Lemons, limes and dill pickles taste sour because they contain
A. pH.
B. bleach.
C. acid.
D. salt.