International Olympiad of Science (iOS), 2024-25

Posted by Olympiad Tester on Apr 10, 2024

The International Olympiad of Science (iOS), conducted annually by the Silverzone foundation, evaluates the Science proficiency of students from Class 1 to 12.

Aligned with CBSE/ICSE and state board guidelines, the iOS syllabus ensures comprehensive coverage. Registration, managed by school administrators, requires submission of completed forms and fees. Post-exam, results and answer keys are published online.

Explore this article for detailed information on the International Olympiad of Science (iOS).

Important Dates & Highlights

Exam Name: iOS (International Olympiad Of Science)
Organizer: Silverzone Foundation
No of levels: iOS is a three level exam.

Level 1

All students

Level 2

Top 1000 rank holders.
Class 1st rank holders

Level 3

iOS 1st rank holders of Classes 6th to 12th from 2nd level will be eligible for level 3 which will be conducted in New Delhi, India.

1st exam date for iOS : 13th Nov, 2024
2nd exam date for iOS: 5th Dec, 2024
iOS Result date: To be announced

Exam Pattern for iOS

Students aspiring to do well in the upcoming iOS exam should familiarize themselves with the exam format. The number of questions and difficulty level vary based on the students' respective classes. Candidates can refer to the exam pattern listed below or on the Silverzone iOS platform:

Exam Duration: The exam will last for 40 minutes.
Exam Mode: The school along with Silverzone personnel, administers the exam in a paper-and-pencil format.
Type of questions: MCQ (Multiple-choice questions.)
Sections: The exam has three sections.
- Section 1 - Science
- Section 2 - Reasoning and aptitude
- Section 3 - Scholars zone
No of questions
- Class 1 & 2 - 25 questions
- Class 3 to 5 - 30 questions
- Class 6 to 8 - 35 questions
- Class 9 to 12 - 40 questions
Exam Medium: English
Negative marking - No

Exam Syllabus for iOS 2024-2025

Students wanting to excel in the iOS exam should be familiar with its syllabus. The Silverzone foundation has published the iOS syllabus on its official website.

Class 1 Syllabus

Living and Non-living Things; Plants and Animals; Matter and Motion; Transport; Communication and Safety; Air, Water, and Weather; Our Universe, Natural Resources; Our Body; Reasoning and aptitude.

Class 2 Syllabus

Living and Non-living Things; The Plant Kingdom; The Animal Kingdom; Our Environment; Air, Water and Weather; Our Surroundings and Safety Rules; Our Universe; Food We Eat and Clothes We Wear; Parts of the Human Body; Reasoning and Aptitude.

Class 3 Syllabus

Living and Non-living Things; The Plant Kingdom; The Animal Kingdom; Matter and Motion, Transport; Our environment; Air, Water, and Weather; Our Universe; Natural resources, Our body; Reasoning and aptitude.

Class 4 Syllabus

The functioning of the Human Body; Rocks, minerals and soil, Our environment, universe; Plant kingdom, Animal kingdom; Work, Force, Energy; Matter; Reasoning and aptitude.

Class 5 Syllabus

Matter; Our Environment, Natural Calamities, Housing; Plants, Animals; Light and sound; Our Body and Nutrition; Work, Force, Energy and Simple Machines; Reasoning and aptitude.

Class 6 Syllabus

Components of Food, Nutrition in Plants and Animals; Fibre to Fabric, Sorting Materials into Groups, Separation of Substances, Changes Around us; Body Movements, The Living Organisms and its Surrounding; Time, distance and speed; Work, Force and Energy; Electricity and Circuits; Fun with Magnets; Light and Sound; Air, Water and Weather; Our Environment; Garbage In, Garbage Out; Reasoning and aptitude.

Class 7 Syllabus

Weather, Climate and Adaptation, Soil, Respiration, Transportation in Plants and Animals, Reproduction in Plants; Fibre to Fabric; Heat, Acids, Bases and Salts; Physical and Chemical Changes; Winds, Storms and Cyclones; Water, Forest; Nutrition in Plants, Nutrition in Animals; Reasoning and aptitude.

Class 8 Syllabus

Crop Production, Microorganisms; Force, Friction, Light, Sound, Chemical Effects of Electric Current; Cell, Reproduction, Reaching the Age of Adolescence, Conservation of Plants and Animals; Synthetic Fibres and Plastics, Metals and Non-metals, Coal and Petroleum, Combustion and Flame; Some Natural Phenomena, The Universe, Pollution of Air and Water; Reasoning and aptitude.

Class 9 Syllabus

Matter in Our Surroundings, Is Matter Around Us Pure; Atoms and Molecules, Structure of the Atom; Cell, Tissues, Diversity in Living Organisms, Why do We Fall ill; Natural Resources, Improvement in Food Resources; Motion, Force and Laws of Motion, Gravitation; Work & Energy, Sound; Reasoning and aptitude.

Class 10 Syllabus

Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals; Periodic Classification of Elements, Carbon and Its Compounds; Life Processes, Control and Coordination, How do Organisms Reproduce; Heredity And Evolution; Reflection of Light, Refraction of Light, Human Eye and Colourful World, Electricity, Magnetic Effect of Electric Current; Reasoning and aptitude.

iOS Sample papers - Class 1 to 10

Once the registration process is done, the student should prepare for the Science Olympiad with our iOS Sample papers to get a top rank.

Silverzone iOS Results & Awards

Level 1

All participants will get the SPC (Student Participation Certificate) and a comprehensive assessment report.
1st, 2nd, and 3rd rank holders in each school’s class will receive Gold, Silver, and Bronze medals, respectively.
26th to 500th Olympiad rank holders in each class will be awarded the "Topper accomplishment certificate".
Each class’s 11th to 25th Olympiad rank holders will receive interesting prizes.
Wristwatches will be given to each class’s 4th to 10th Olympiad rank holders.

Level 2

1st rank holder of Classes 11 and 12 - Olympiad 1st rank holder of Class 12 will be awarded a cash prize of Rs. 1,00,000/-, along with a Winner’s Trophy, and 1st rank holder of Class 11 will be awarded a cash prize of Rs. 50,000/-, along with a Winner’s Trophy.
1st Olympiad rank holder from Classes 1 to 10 - Will be awarded a cash prize of Rs. 15,000/- each with a Winner’s Trophy.
2nd Olympiad rank holder in each class - Will be awarded a cash prize of Rs. 10,000/- each with a Winner’s Trophy.
3rd Olympiad rank holder in each class - Will be awarded a cash prize of Rs. 5,000/- each with a Winner’s Trophy.
All State Rank 1st, 2nd, and 3rd rank holders of all classes - Will be awarded exciting prizes
All participants - Participation certificate + Comprehensive performance report