Science Olympiad Foundation (SOF)

The Science Olympiad Foundation (SOF) conducts a range of competitive exams including the National Science Olympiad (NSO), International Mathematics Olympiad (IMO), International Computer Science Olympiad (ICSO, formerly NCO), International English Olympiad (IEO) and more.

This master collection provides structured, syllabus-aligned preparation for Class 1–10 with sample papers, online mock tests, HOT (Higher Order Thinking) question banks and previous-year style questions designed as per the latest SOF exam pattern. Select your exam below to begin focused and completely free preparation.

  1. SOF NSO preparation for Class 1–10 featuring sample papers, mock tests, logical reasoning practice and HOT question bank by Olympiadtester since 2014.

    NSO

  2. SOF Math Olympiads (IMO) preparation for Class 1-10 featuring sample papers, mock tests, Logical Reasoning and HOT questions by Olympiadtester since 2014.

    IMO

  3. SOF International Computer Science Olympiad (ICSO) preparation featuring free sample papers, online mock tests, Logical Reasoning and previous year papers by Olympiadtester since 2014.

    International Computer Science Olympiad

  4. SOF International English Olympiad (IEO) preparation for Class 1-10 featuring free sample papers, online mock tests, grammar practice and reading comprehension since 2014.

    International English Olympiad

  5. SOF International General Knowledge Olympiad (IGKO) preparation for Class 1-10 featuring free sample papers, online mock tests and current affairs practice since 2014.

    International General Knowledge Olympiad

  6. SOF International Social Studies Olympiad (ISSO) preparation for Class 1-10 featuring free sample papers, online mock tests and history, geography and civics practice since 2014.

    International Social Studies Olympiad