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The Science Olympiad Foundation (SOF) conducted the International Science Olympiad (ISO) Level 1 examination on October 30, 2026. Students from Classes 1 to 12 participated in the examination across India and abroad. Candidates are now waiting for the release of the SOF ISO Answer Key 2026, which is expected to be available soon on the official website, sofworld.org.

The answer key will help students verify their responses and estimate their probable scores before the declaration of the result. SOF is expected to release the answer keys separately for different examination dates and sets. Students can download the answer key PDF by selecting their respective class and examination set.

SOF ISO Answer Key 2026: Highlights

The Science Olympiad Foundation conducts the International Science Olympiad every year to assess students' scientific knowledge and understanding. Students can check the important details regarding the SOF ISO Level 1 examination and answer key below.

SOF ISO Answer Key 2026 Release Date

Students who appeared for the SOF International Science Olympiad Level 1 examination on October 30, 2026, are eagerly waiting for the official answer key.

The Science Olympiad Foundation has not yet announced the confirmed release date of the SOF ISO Answer Key 2026. However, the answer key for Set A is expected to be released in November 2026, while the answer key for Set B is expected in December 2026.

Once released, students will be able to access the answer key through the official SOF website. They should regularly check the website for the latest updates regarding the answer key and result.

SOF ISO Answer Key 2026 Download Link

The SOF ISO Answer Key 2026 will be published online in PDF format. Students will be able to download the answer key by selecting their respective class and examination set.

The answer key will contain the correct answers to the questions asked in the examination. Students can use it to compare their responses and calculate their probable scores.

• Exam Name: SOF International Science Olympiad 2026-27

• Exam Date: October 30, 2026

• Answer Key Status: Awaited

• Expected Release: November 2026

• Official Website: sofworld.org

Students should select the correct examination set while downloading the answer key to avoid checking answers against an incorrect question paper.

Steps to Download SOF ISO Answer Key 2026

Students can follow the steps below to download the SOF International Science Olympiad Answer Key 2026 once it is released:

• First visit the official website of the Science Olympiad Foundation.

• Go to the relevant section available on the homepage.

• Click on the "SOF Answer Key and Cut Off 2026-27" link.

• Select "International Science Olympiad (ISO)" from the list of examinations.

• Choose your respective class.

• Select the examination set, such as Set A or Set B.

• The SOF ISO Answer Key PDF will appear on the screen.

• Download the answer key and save it for future reference.

• Match your answers with the official answer key and estimate your probable score.

Students are advised to check the class and examination set carefully before downloading the PDF.

How to Calculate Marks Using SOF ISO Answer Key 2026?

Students can use the official answer key to estimate their probable marks in the SOF ISO Level 1 examination.

To calculate their estimated scores, students should:

• Download the answer key for their respective class and examination set.

• Compare each answer marked in the examination with the official answers.

• Count the number of correct responses.

• Apply the marking scheme prescribed for their respective class.

• Calculate the total estimated marks.

Students should refer to the official examination guidelines for the applicable marking scheme, as the marking pattern may vary according to the class.

SOF ISO Level 2 Examination 2026-27

The SOF International Science Olympiad consists of two levels. Students from Classes 1 to 12 can participate in Level 1, while Level 2 is conducted for eligible students from Classes 3 to 12.

Students who qualify for Level 2 according to the foundation's selection criteria will be eligible to participate in the next stage of the Olympiad.

The Level 2 examination provides students with another opportunity to demonstrate their scientific knowledge and compete at a higher level.

Important Instructions for Students

Students should download the answer key only from the official SOF website and select the correct class and examination set.

The answer key will help students estimate their performance, but the final result declared by the Science Olympiad Foundation will be considered official.

Students should also keep checking the official website for updates regarding the answer key, results and Level 2 examination.

Official Source: Science Olympiad Foundation (SOF) – sofworld.org