ISO 2026-27 exam dates announced: Level 1 on October 30, November 19, December 3

The Science Olympiad Foundation (SOF) has announced the examination dates for the International Science Olympiad (ISO) 2026-27. The Level 1 examinations are set to take place on October 30, November 19, and December 3, 2026. This Olympiad is designed for students from Classes 1 to 12 across participating schools.

The ISO is one of several Olympiad exams conducted by SOF for the academic year 2026-27, alongside the IGKO, IEO, IMO, and ICSO. Schools are responsible for selecting one of the three provided dates to conduct the offline examination and for managing student registrations.

ISO 2026-27 Examination Structure and Syllabus

The International Science Olympiad (ISO) 2026-27 will be conducted in an offline mode, featuring Multiple Choice Questions (MCQs) in English. The exam duration for all classes is one hour. The syllabus for the ISO includes Science, logical reasoning, and general thinking skills. Specifically, for Classes 1 to 10, the questions will include Logical Reasoning, while for Classes 11 and 12, the focus will be on Physics and Chemistry.

The ISO examination has two levels: Level 1 and Level 2. Level 2 of the ISO exam is applicable for students in Classes 3 to 12. The structure for the Level 1 examination varies by class group, with separate question papers prepared for each of the three examination dates.

For students in Classes 1 to 4, the Level 1 examination comprises 35 questions carrying a total of 40 marks. For Classes 5 to 12, the Level 1 examination consists of 50 questions, accumulating 60 marks.

Registration and Key Dates for ISO 2026-27

Registration for the International Science Olympiad 2026-27 is exclusively handled through schools. The Science Olympiad Foundation has already dispatched the Olympiad registration 2026 forms to schools. Students who have not yet received their registration forms are advised to contact info@sofworld.org.

The Level 1 examination offers schools the flexibility to choose any one of the three specified dates for conducting the exam. The SOF also conducts other Olympiads, with their respective dates announced for the 2026-27 academic year.

Availability of Question Papers and Answer Keys

The ISO Question Paper 2026 PDF for each class will be made available by the Science Olympiad Foundation after the respective examination has been conducted. Similarly, the ISO Answer Key 2026-27 will be provided immediately after the conclusion of each exam. This allows students to estimate their marks by recalling their answers and comparing them with the official key.

Students preparing for the upcoming exams can download previous years’ question papers for practice. The official portal for the Science Olympiad Foundation is sofworld.org, where further updates and resources are expected to be published.

Further reading

• NMMS 2026-27 application open: apply by November 30 for Rajasthan, exam for Odisha on December 6
• UGC NET application deadline extended: apply by 31 October for December 2026 exam
• Kolkata Police Constable exam date 2024 announced: final written test on 29 November
• HBSE Class 10, 12 exams 2027 registration opens October 30; apply by December 8
• Jamia Millia Islamia end-semester exams announced: online classes extended till November 24

Written by Nishit Kumar

Nishit Kumar is a senior EdTech industry leader with over a decade of experience in building and scaling education platforms, shaping their product, content, and growth strategy. At FindMyCollege, Nishit oversees content and editorial strategy, guiding topic selection and content frameworks to ensure accuracy, relevance, and student-first value across the website.

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