NSO Class 10 Syllabus

The National Science Olympiad (NSO) is a scholarship exam that aims to improve scientific thinking and logical abilities. It is conducted every year by the Science Olympiad Foundation (SOF). The exam is held for students studying in grades 1 to 12. There are two levels of NSO. All students in grades 1 to 12 participate in Level 1. Level 2 is for students who have passed the level 1 exam, and this level starts from grade 3. To take the level 2 exam, the student must meet the SOF organization’s eligibility requirements.

The Outline of the Examination

The two levels of examination commence from grade 3. The pattern of the exam is discussed below

  • The test is an objective-type test with 35 multiple-choice questions for grades 1 to 4, and 50 multiple-choice questions for grades 5 to 12.
  • The top 5% students in each class who take the first level exam will advance to the next level.

Examination Pattern

The Class 10 exam pattern includes an objective-type test with 35 multiple-choice questions. The exam is broken down into three components:

  • Logical Reasoning is the subject of the first section’s questions.
  • The questions in Section 2 are about Science.
  • The Achievers segment of Section 3 has questions on Higher-Order Thinking Skills.

The distribution of marks for the three sections is displayed in the table below.

Class / Grade Section Number of questions Marks per question Total marks
Grade 10 Section 1 10 1 10
Section 2 35 1 35
Section 3 5 3 15
Grand Total 50 60

NSO Syllabus Class 10

NSO’s curriculum is based on the CBSE, ICSE, and several state boards’ academic curriculum. The NSO syllabus is structured in such a way that all concepts and theories are thoroughly covered once the student has completed the class. All types of questions appear in the NSO examination, with varying degrees of difficulty.

Section of the exam Name of the section Topics included in the section
Section 1 Logical Reasoning Verbal and Non-verbal reasoning
Section 2 Science Section The concepts and topics related to Science Subject

  • Chemical Reactions and Equations
  • Acids, Bases and Salts
  • Metals and Non-metals
  • Carbon and Its Compounds
  • Periodic Classification of Elements
  • Life Processes
  • Control and Coordination
  • 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
Section 3 Achievers Section This section deals with Higher-Order Thinking Questions. The topics for this section are the same as section 2, but the difficulty level would be a little more.

By studying NSO syllabus Class 10 from textbooks and referring to other competitive books, students can easily pass the exam. A firm grip over the concept and subject is obtained by repeated revision and proper study. The candidate’s preparation can be enhanced by solving NSO sample papers. The NSO test comprises a wide range of problems and the difficulty of the questions varies.

Frequently Asked Questions on NSO  

What is the full form of NSO examination?

The full form of NSO is the National Science Olympiad.

When is the exam conducted?

The exam is conducted once a year, in the month of December.

Where can the student find sample papers?

The sample papers for the NSO exam can be found on the SOF official website.

What are the benefits of writing the NSO exam?

NSO mainly focuses on learning and the application of that learning in day-to-day life. One will be able to answer questions in various ways and formats.

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