Courses
By Ankit Gupta
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Updated on 7 Jul 2025, 15:25 IST
The CBSE Class 10 Science Syllabus 2025-26 is an important guide for students preparing for their board exams. This syllabus tells you what to study in Science for the entire academic year. It is carefully designed by the Central Board of Secondary Education (CBSE) to help students understand the world around them through the subjects of Physics, Chemistry, and Biology.
The CBSE Class 10 Science Syllabus focuses on basic science topics that build a strong foundation for higher classes. It includes interesting and useful chapters like Chemical Reactions, Life Processes, Electricity, and Light. These topics are not just for exams—they also help students understand real-life situations better. For example, knowing about electricity or how the human body works can be very helpful in everyday life.
The CBSE Class 10 Science 2025-26 Syllabus is divided into units, each with a set number of marks. This helps students know which topics are more important and need extra attention. The syllabus also includes internal assessments, such as tests, practicals, and projects. These help students learn by doing and improve their overall understanding.
One key feature of the Science syllabus class 10 CBSE 2025-26 is that it clearly mentions the deleted syllabus of class 10 CBSE 2025-26 Science. This helps students avoid studying topics that are no longer part of the exam and save valuable time.
Overall, the CBSE syllabus for class 10 Science is balanced, student-friendly, and designed to promote critical thinking. By following this syllabus, students can study in a planned way, stay focused, and score better in their board exams. Understanding the class 10 Science syllabus 2025-26 is the first step towards a successful academic year.
Do Check: CBSE Class 10 Syllabus Subject Wise
The CBSE Class 10 Science syllabus 2025-26 is structured to promote conceptual understanding and application-based learning. It is divided into five major units and includes 20 marks for internal assessment.
| Unit No. | Unit Name | Marks |
| 1 | Chemical Substances - Nature and Behaviour | 25 |
| 2 | World of Living | 25 |
| 3 | Natural Phenomena | 12 |
| 4 | Effects of Current | 13 |
| 5 | Natural Resources | 05 |
| — | Internal Assessment | 20 |
| — | Total | 100 |
This structure helps students focus on scoring topics and plan time effectively.
Here’s the detailed Class 10 Science Syllabus 2025-26, categorized under Chemistry, Biology, and Physics.
Chapter 1: Chemical Reactions and Equations
Chapter 2: Acids, Bases, and Salts
Chapter 3: Metals and Non-Metals
Chapter 4: Carbon and Its Compounds
Also Check: CBSE Class 10 Maths Syllabus
Chapter 5: Life Processes
Chapter 6: Control and Coordination
Chapter 7: How do Organisms Reproduce?
Chapter 8: Heredity and Evolution
Chapter 9: Light – Reflection and Refraction
Chapter 10: The Human Eye and the Colourful World
Chapter 11: Electricity
Chapter 12: Magnetic Effects of Electric Current
Chapter 13: Our Environment (Biology + EVS)
Also Check: CBSE Class 10 English Syllabus
Understanding the class 10 Science deleted syllabus 2025-26 is very important for avoiding irrelevant study material. Here are the deleted syllabus of class 10 CBSE 2025-26 Science chapters/topics (based on official updates):
| Chapter | Deleted Topics |
| Heredity & Evolution | Evolution topics (details) |
| Our Environment | Some sub-topics on environmental pollution |
| Control and Coordination | Plant hormones (reduced detail) |
Note: Always verify with your school teacher or latest CBSE updates for Science deleted syllabus class 10 CBSE 2025-26 changes.
| Component | Weightage |
| Periodic Test (3) | 10 Marks |
| Portfolio | 05 Marks |
| Practical Work & Lab | 05 Marks |
| Total | 20 Marks |
Internal assessments are crucial for overall performance. Students must maintain practical files and engage actively in experiments.
The CBSE Class 10 Science syllabus 2025-26 is a well-balanced curriculum aimed at giving students strong conceptual knowledge in Physics, Chemistry, and Biology. By regularly revising this structured syllabus and focusing only on what's included (excluding the deleted syllabus of class 10 CBSE 2025-26 Science), students can score well in their board exams.
The CBSE Class 10 Science Syllabus 2025-26 is the official outline of all the topics and chapters that students need to study in Physics, Chemistry, and Biology during the academic year. It helps students prepare properly for the board exams by showing what to focus on and how marks are distributed.
The CBSE syllabus for Class 10 Science includes three main sections:
Each section helps build basic concepts needed for higher studies.
Yes, CBSE has also mentioned the Science class 10 deleted syllabus 2025-26. Some topics like parts of Evolution and Control & Coordination have been removed to reduce the academic burden. Students should check the latest syllabus to avoid learning removed topics.
The syllabus is divided as follows:
This helps students know which chapters carry more marks.
Yes, the CBSE Class 10 Science Syllabus 2025-26 includes internal assessments like lab experiments, portfolios, and class tests. These are important for understanding practical concepts and carry 20 marks in total.
CBSE has returned to the single annual exam format, but some schools may follow a term-based structure internally. If so, the Class 10 Science term 2 syllabus may include chapters like Electricity, Magnetic Effects, and Our Environment.
You can download the official syllabus from the CBSE website (cbseacademic.nic.in). Always check the latest version to ensure you’re not studying from outdated material.
