Home » CBSE Class 10 Science Syllabus 2025-26: Complete Guide with Marking Scheme

CBSE Class 10 Science Syllabus 2025-26 

Introduction

Class 10 is a pivotal year in a student’s academic journey, as it marks the beginning of board examinations. Therefore, having a clear understanding of the syllabus is essential for effective preparation.

This year’s CBSE Science class 10 syllabus has been developed in alignment with the National Curriculum Framework and follows the CBSE’s latest guidelines. Compared to the 2024 – 25 session, there are no major changes, so students already familiar with the previous syllabus will find this version quite consistent.

📥Download CBSE Class 10 Science Syllabus PDF 2025-26
Click the link below to access the official CBSE syllabus PDF and plan your preparation effectively.
CBSE class 10 Science syllabus 2025 PDF

Why is the CBSE Class 10 Science Syllabus Important?

The CBSE Class 10 Science syllabus acts as a roadmap for students preparing for the board exams. It outlines the unit-wise distribution of topics, marking scheme, and also includes guidelines for practicals, projects, and assignments. Knowing this structure helps students:

  • Strategically allocate study time to high-weightage units
  • Understand what to expect in theory and practical exams
  • Organize their revision and practice sessions efficiently

CBSE class 10 Science syllabus 2025 – 2026

Chapter 01Chemical Reactions and Equations
Chapter 02Acids, Basis and Salts
Chapter 03Metals and Non-Metals
Chapter 04Carbon and its compounds
Chapter 05Life Process
Chapter 06Control and Coordination
Chapter 07How do organisms reproduce?
Chapter 08Heredity
Chapter 09Light – Reflection and Refraction
Chapter 10The Human Eye and Colourful World
Chapter 11Electricity
Chapter 12Magnetic effects of Electric Current
Chapter 13Our Environment

 

 CBSE Class 10 Science Syllabus 2025-26: Unit-Wise Weightage

The syllabus is divided into five major units, with Units I and II carrying the most weight. Here’s the detailed structure:

UnitTitleMarks
IChemical Substances – Nature and Behaviour25
IIWorld of Living25
IIINatural Phenomena12
IVEffects of Current13
VNatural Resources05
Total (Theory)80
Internal Assessment (Practicals, Projects)20
Grand Total100

 

 Key Highlights of CBSE 10th Science Syllabus 2025-26

  • Clear unit-wise distribution for better focus
  • Inclusion of practical, projects & internal assessments
  • Ideal for systematic board exam preparation
  • Aligned with latest CBSE academic policies

FREQUENTLY ASKED QUESTIONS

Q1. How many units are there in the CBSE Class 10 Science syllabus?

There are five units: Chemical Substances, World of Living, Natural Phenomena, Effects of Current, and Natural Resources.

Q2. What is the total marks breakup for CBSE Class 10 Science?

The total is 100 marks – 80 marks for theory and 20 marks for internal assessment, including practicals and projects.

Q3. How many experiments are included in the Science syllabus?

There are 14 experiments that students must focus on to strengthen their practical understanding and score well in the internal assessment.

 

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