IOS Syllabus, Check Complete Syllabus from Class 1 to 12

Class-Wise iOS 2025-26 Syllabus: The International Olympiad of Science (iOS), organized by the SilverZone Foundation, is a prestigious competitive exam that gauges the scientific aptitude of students from classes 1 to 12. As the iOS 2025-26 exam approaches, understanding the class-wise syllabus is crucial for effective preparation. This article provides a detailed and structured syllabus for each class, helping students and parents navigate the preparation journey confidently.

Why Understanding Class-Wise iOS Syllabus Matters?

Having a clear understanding of the syllabus helps in:

• Efficient time management for preparation.
• Identifying high-weightage chapters.
• Aligning Olympiad prep with school curriculum.
• Practicing relevant reasoning and aptitude sections.

iOS 2025-26 Syllabus: Class 1

iOS 2025-26 Syllabus: Class 2

iOS 2025-26 Syllabus: Class 3

iOS 2025-26 Syllabus: Class 4

iOS 2025-26 Syllabus: Class 5

iOS 2025-26 Syllabus: Class 6

iOS 2025-26 Syllabus: Class 7

iOS 2025-26 Syllabus: Class 8

iOS 2025-26 Syllabus: Class 9

iOS 2025-26 Syllabus: Class 10

iOS 2025-26 Syllabus: Class 11 (PCM)

iOS 2025-26 Syllabus: Class 12 (PCB)

iOS 2025-26 Syllabus: Class 12 (PCM)

Conclusion

The iOS 2025-26 exam is structured to test both academic knowledge and reasoning capabilities. With a clear understanding of the class-wise syllabus, students can tailor their preparation effectively. Whether you are in primary school or gearing up for Class 12 board exams, the iOS syllabus is thoughtfully designed to promote conceptual clarity and scientific inquiry. For best results, align your preparation with the syllabus given above and consistently practice from sample papers and mock tests.

Class-Wise iOS 2025-26 Syllabus FAQs

Q1. What is the Class-Wise iOS 2025–26 Syllabus?
Answer: The Class-Wise iOS 2025–26 Syllabus outlines subject-specific chapters and topics for students from Class 1 to Class 12 appearing in the International Olympiad of Science (iOS). It includes major areas like Physics, Chemistry, Biology, Mathematics, Reasoning & Aptitude, and Scholar’s Zone depending on the class level. The syllabus is structured to assess both conceptual understanding and application-based learning.

Q2. Is the iOS 2025–26 Syllabus different for PCB and PCM streams in Classes 11 and 12?
Answer: Yes, the syllabus is stream-specific in Classes 11 and 12.

• For PCM students, the focus is on Physics, Chemistry, Mathematics, and Reasoning.
• For PCB students, the subjects include Physics, Chemistry, Biology, and Reasoning.
  Each subject comprises specific chapters aligned with the Class 11 and 12 academic curriculum.

Q3. Are reasoning and aptitude included in every class for iOS 2025–26?
Answer: Yes, Reasoning and Aptitude are included across all eligible classes (from Class 3 onwards) in the iOS 2025–26 exam. This section helps in evaluating students' logical thinking, problem-solving skills, and mental ability, and it holds a considerable weightage in the overall marks.

Q4. How many questions are asked in total for each class in the iOS 2025–26 exam?
Answer: Each class has a total of 40 questions in the iOS 2025–26 examination.
The marking scheme and difficulty level vary by class and stream, but the overall paper carries 100 marks regardless of class. The distribution includes subject-wise questions from core subjects and reasoning.

Q5. Where can I find the detailed syllabus for each class for the iOS 2025–26 exam?
Answer: You can find the complete class-wise iOS 2025–26 syllabus in the official syllabus guide or through educational platforms preparing students for Olympiad exams. The syllabus includes topic-wise breakup, number of questions, and marking scheme for all subjects per class. You can also refer to the comprehensive table included in this article for quick access.