Complete Guide to iOS 2025-26 Olympiad: This year’s iOS program helps students learn basic science, improve their intellectual abilities and be appreciated for their hard work by people both in their country and abroad. Backed by the SilverZone Foundation, the IOS tries to develop curiosity in science and bring out the best in young students.
If you’re a student, parent or teacher, you’ll find all the information about the Olympiad, what’s required to register, how it will be held, what will count for syllabus, how it is planned and the available rewards.
What is the iOS Olympiad?
Every year, students from Class 1 to Class 12 participate in the IOscience examination run by the International Olympiad of Science. This Olympiad, run annually by SilverZone Foundation, involves tests on scientific education, how it is used and the ability to solve problems — all things students learn at school.
It’s not just about scoring well on tests; the iOS is designed to develop your passion for science and use it off screen.
Key Highlights of iOS 2025-26
-
Conducting Body: SilverZone Foundation
-
Classes Eligible: 1 to 12
-
Mode of Exam: Offline (Pen and Paper)
-
Question Type: Multiple Choice Questions (MCQs)
-
Levels: Two (Level 1 and Level 2)
-
Subjects Covered: Physics, Chemistry, Biology, Environmental Science (as per class level)
Who Can Participate in iOS Exam 2025-26?
Students from Class 1 through Class 12 following CBSE, ICSE or recognized Indian (or international) State Board courses are allowed to take part in the IOS.
To take part in the Olympiad, students can choose between two ways.
- Should your school use SilverZone Foundation for science, simply ask your teacher or school coordinator to help you enroll.
- Those whose schools are not yet on SilverZone can also register directly by visiting the foundation’s official site.
How to Register for iOS 2025-26?
Signing up for the 2025-26 Olympiad is not tough. Here’s how:
Through School
- The registration form is obtained by students from their school coordinator.
- Complete the required information and send the form with the payment.
- After that, all the school’s entries are sent together to SilverZone Foundation.
You can register directly online.
- Find the official website at www.silverzone.org
- Tap on the “iOS” button to participate in this category.
- Register for the webinar on the event website.
- You can complete your registration by paying via one of the available payment options on the site.
- The registration fee for students is usually set between ₹125 and ₹155 (amount can differ for students from abroad).
iOS Exam Categories and Levels
- Two different levels make up the iOS Olympiad.
- Level 1 is called the Foundation Stage.
- Test will be taken offline, using a scan form known as the OMR.
- The session lasts for one hour.
- There are 40 multiple-choice questions in this topic.
- When you mark the questions, each one will be worth 2.5 marks. There is no deduction for incorrect answers in this exam.
- Language: English
- At this level, students are assessed on whether they understand scientific topics from class and can use them.
- Level 2 stands for Advanced Stage.
- Students who do well in Level 1 are chosen for Level 2.
- At level 2, students must analyze situations and apply what they have learned.
- Most exam patterns are the same, but require more effort from students.
iOS 2025-26 Syllabus
A summary of the outline of the 2025-26 iOS syllabus
- The syllabus of iOS is in line with what you would study in school (CBSE, ICSE and State Boards). The program is developed with each student’s class level in mind.
The syllabus is usually arranged this way:
- From Class 1–5, students focus on General Science, Environment, Plants, Animals, the Human Body, Weather, Day and Night and Simple Physics Concepts.
- Classes 6–8 introduce the subjects of Chemistry, what happens in Living organisms, Electricity, the interaction of Force and Motion, Soil and Atoms and Molecules.
- Topics in Physics, Chemistry and Biology are studied from NCERT in Class 9 and 10.
- Grades 11 to 12 primarily focus on applying scientific theories in detail, Modern Physics, Chemistry at both the organic and inorganic levels and studies of Ecology and Genetics.
- The exam is designed to check your understanding of questions and your ability to solve them.
How to Prepare for the iOS Olympiad?
1. Be sure to know the course details fully.
Don’t offer anything beyond the lessons taught in school. Take time to learn the important ideas presented in your class textbooks (CBSE/ICSE/State Boards).
2. Solve questions that comes from the Olympiad.
Download samples, practice tests and question papers from top years for free on the SilverZone website.
3. Time Management
Time your work on completing MCQs. With only 60 minutes for the exam, try to do practice tests within 50 to 55 minutes to give yourself space to check your work.
4. Use reference material to help you.
SilverZone has books that support your studies for the iOS test. You can gain better understanding by checking the NCERT books.
5. You could also join online mock tests.
A lot of websites provide opportunities to take practice exams like the Olympiad. Sign up for exams from other sources to get used to working with a time limit.
Why Should You Join the iOS?
Winning medals isn’t the only thing iOS challenges you to do. This is what students receive:
- An improvement in the way science is practiced
- Standing Competitive at the National and International Scale
- Extra help for students getting ready for Boards and Centre Entrance Exams
- Encouraging and rewarding through giving Awards
- Problem Solving in Condensed Time Periods
iOS Awards and Recognition
The foundation offers special rewards for students who achieve high results in school, zone and international competitions.
Rewards include:
- The awards are known as the Gold, Silver and Bronze medals.
- Topper Certificates
- Awards are given out as cash or scholarships.
- Academically Excellent Trophies
- Every student gets a Participation Certificate.
It isn’t just the students who get recognition. Schools and their coordinators are recognized with performance-based awards and get certificates expressing appreciation.
Tips for Students and Parents
For Students:
- Don’t wait until the last days to review, but make a habit of learning often before the exam.
- It’s better to understand the processes behind things than to just memorize details.
- Each mock test represents an important opportunity.
- Keep a cool head and pay attention to what you are doing throughout the exam.
For Parents:
- Set up opportunities for your child to look and figure things out on their own.
- Don’t force your child; use it to help them understand better.
- Give access to the right tools and study materials.
- Pay attention to your kids’ efforts, rather than only looking at their results.
Conclusion
The International Olympiad of Science (iOS) 2025–26 is a great opportunity for students to explore science beyond textbooks, enhance their reasoning skills, and get national/international recognition. It isn’t about who’s the smartest – it’s about who’s consistent, curious, and committed. Whether you’re aiming for a medal or just looking to challenge yourself, participating in the IOS will add tremendous value to your academic journey.
Complete Guide to iOS 2025-26 Olympiad FAQs
1. For whom is the iOS 2025-26 Olympiad intended?
Answer: All students in Classes 1 to 12 from India or abroad who study at a recognized school, be it CBSE, ICSE or State Boards, can enter the iOS Olympiad. Participants can go through their school to join the SilverCom programme or access it through the SilverZone Foundation directly on its website.
2. Which topics are examined in the iOS Olympiad 2025-26?
Answer: The exam takes the form of a pen-paper test with 40 MCQs that you need to answer within 60 minutes. You will not lose points for wrong answers and a question is worth 2.5 marks. All participants sit for Level 1 and top performers also must participate in Level 2.
3. How can I take part in the iOS Olympiad if my school will not be taking part?
Answer: To sign up personally, go to the SilverZone Foundation website (www.silverzone.org), choose the IOS Olympiad, fill out the form, pay the fee and get an email showing that you have been registered.
4. What questions appear in the iOS Olympiad?
Answer: The tests explore a student’s understanding of science concepts and how they use them in real situations. Traffic run courses and exams become harder as you move up in class.