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SOF will release the ISSO answer key on the official website, sofworld.org in a PDF format. SOF International Social Studies Olympiad (ISSO) answer key is expected to be released in February 2026. Students can use the SOF ISSO answer key to know the correct answer and calculate their exam scores. The SOF ISSO exam 1 will be held on three different dates, i.e., September 18, 2025, November 20, 2025 and January 23, 2026.
The Science Olympiad Foundation (SOF) conducts the International Social Studies Olympiad (ISSO) for students from Classes 3 to 10. It is an annual competition organised by SOF to analyse students' knowledge and skills in Social Studies. The SOF ISSO answer key will include the answers to the questions asked in the SOF ISSO exam. By checking the answer key, students can predict their SOF ISSO result.
SOF releases the SOF ISSO answer key on the official website. Students must visit the website every other day to keep track of upcoming events. Below, we have provided an overview of SOF ISSO for the students’ general knowledge.
Particulars | Details |
Exam name | SOF ISSO |
Exam date | Date 1: September 18, 2025 Date 2: November 20, 2025 Date 3: January 23, 2026 |
Answer key release date | February 2026 |
Classes participate | Classes 3 to 10 |
Official website | sofworld.org |
Students who appeared for the ISSO exam can check the answer key on the official SOF website. Below, we have provided simple steps for students on how to download the SOF ISSO answer key.
Visit the official website, sofworld.org.
Click on the “Answer Key” link.
On the next page, select the class and download the ISSO answer key PDF.
Students appearing for the exam have to learn about the SOF ISSO marking scheme. The marking scheme helps with understanding the exam pattern. Below, we have provided the SOF ISSO marking scheme for Classes 3 to 10 for the student’s reference.
Class | Topic | No. of Questions | Marks per question | Total Marks |
3rd & 4th | Social Studies | 30 | 1 | 30 |
Achievers Section | 5 | 2 | 10 | |
Total | 35 | 40 |
Class | Topic | No. of Questions | Marks per question | Total Marks |
5th | Social Studies | 45 | 1 | 45 |
Achievers Section | 5 | 3 | 15 | |
Total | 50 | 60 |
Class | Topic | No. of Questions | Marks per question | Total Marks |
6th to 8th | History | 20 | 1 | 20 |
Geography | 15 | 1 | 15 | |
Social and Political Life | 10 | 1 | 10 | |
Achievers Section | 5 | 3 | 15 | |
Total | 50 | 60 |
Class | Topic | No. of Questions | Marks per question | Total Marks |
9th & 10th | History | 15 | 1 | 15 |
Geography | 10 | 1 | 10 | |
Political Science | 10 | 1 | 10 | |
Economics | 10 | 1 | 10 | |
Achievers Section | 5 | 3 | 15 | |
Total | 50 | 60 |
There will be a total of 35 objective-type questions for classes 1 to 4 and 50 objective-type questions for classes 5 to 10.
The SOF ISSO exam 1 will be held on three different dates, i.e., September 18, 2025, November 20, 2025 and January 23, 2026.
Students can download the ISSO answer key from the official website, sofworld.org.
SOF ISSO is a single-level exam. There are no other eligibility criteria like minimum marks for passing the SOF ISSO exam.
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