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CBSE Class 10 Science Syllabus: The Class 10 Science Syllabus 2025 is designed to provide students with a comprehensive understanding of the key concepts in Physics, Chemistry, Biology, and Environmental Science. As the Class 10 exams approach, it becomes essential to familiarize oneself with the topics included in the Class 10 Science syllabus 2025-26. This syllabus is structured to help students build a strong foundation for their higher studies, especially in subjects like Physics, Chemistry, and Biology.
The syllabus is divided into various chapters that are organized in a way that makes it easy for students to grasp complex concepts. Each subject within the Class 10 Science syllabus is covered in a chapter-wise format. This ensures that students can focus on each topic individually and prepare accordingly. Some of the important chapters include topics like “Electricity and Magnetism” in Physics, “Chemical Reactions” in Chemistry, and “Life Processes” in Biology.
For easy reference, you can find the NCERT syllabus for Class 10 Science PDF, which includes all the topics and chapters for this academic year. These resources are available for download, offering a detailed and structured guide for students preparing for the Class 10 board exams.
If you are looking for a more in-depth understanding, the CBSE 10th Physics syllabus PDF is available, outlining specific concepts covered in the Physics section. Additionally, you can access NCERT Solutions for Class 10 Science for detailed explanations and solutions to help reinforce your learning.
By referring to the Class 10 Science syllabus chapter wise and utilizing the available resources, students can make sure they are well-prepared to excel in their exams and achieve their academic goals.
CBSE Class 10 Science Syllabus 2025 26 Overview
CBSE board often updates the CBSE class 10 Science syllabus, so students must check the latest version before beginning their preparation. The syllabus provides a detailed breakdown of all chapters, their topics, and the marks allocated to each unit. Additionally, it includes information about practicals, assignments, and projects that help students understand scientific concepts better.
To make effective use of the CBSE Class 10 Science Syllabus 2025-26, students should list all the chapters they need to study and dedicate enough time to each topic. Proper planning ensures better understanding and improved performance in exams.
CBSE Class 10 Science 2025 26 PDF Download
CBSE Class 10 Science 2025-26 PDF Download is an essential resource for students preparing for the upcoming academic year. This PDF contains the complete CBSE Class 10 Science syllabus, covering key subjects like Physics, Chemistry, Biology, and Environmental Science. It is designed to help students understand the chapter-wise distribution of topics and prepare systematically for the board exams.
The downloadable PDF is a convenient way to access the syllabus anytime, anywhere, ensuring students are always aligned with the official curriculum. By referring to this resource, students can confidently navigate through the subjects, making their preparation more organized and focused.
CBSE Class 10 Science Syllabus 2025 – Chapters & Topics
The CBSE Class 10 Science syllabus outlines the topics and concepts that students are required to study for their Science subject in the Class 10 board examinations conducted by the Central Board of Secondary Education (CBSE). It covers various branches of science, including Physics, Chemistry, and Biology, providing students with a comprehensive understanding of fundamental scientific principles and their applications. The syllabus is designed to promote conceptual understanding, practical skills, and critical thinking among students, preparing them for higher studies and real-world challenges.
The table below outlines the units, chapters, and topics included in the CBSE class 10 Science syllabus for the 2025-26 academic year:
| Units | Unit Names | Sections |
| I | Chemical Substances – Nature and Behavior | Chemical Reactions |
| Acids, Bases and Salts | ||
| Metals and Non-metals | ||
| Carbon Compounds | ||
| II | World of Living | Life Processes |
| Control and Co-ordination in Animals and Plants | ||
| Reproduction | ||
| Heredity and Evolution | ||
| III | Natural Phenomena | Reflection of Light by Curved Surfaces |
| Refraction | ||
| Refraction of Light by Spherical Lens | ||
| Refraction of Light Through a Prism | ||
| IV | Effects of Current | Electric Current, Potential Difference, and Electric Current |
| Magnetic Effects of Current | ||
| V | Natural Resources | Our Environment |
CBSE Class 10 Science Syllabus With Marking Scheme
The CBSE Class 10 Science Syllabus for the academic year 2025-26 consists of five units, with units 1 and 2 carrying the greatest weightage compared to the others. Here is a table of the units and their weightage:
| Units | Topics | Marks |
| I | Chemical Substances – Nature and Behaviour | 25 |
| II | World of Living | 25 |
| III | Natural Phenomena | 12 |
| IV | Effects of Current | 13 |
| V | Natural Resources | 05 |
| Total | 80 | |
| Internal Assessment | 20 | |
| Grand Total | 100 |
CBSE Class 10 Science Syllabus 2025-26 Topics
The topics of the CBSE class 10 Science syllabus are grouped into three sections, namely, Physics, Biology, and Chemistry. Additionally, these topics include concepts that help strengthen the foundation for a smooth transition to higher classes. Therefore, students must learn all the chapters and their subsequent sections to enhance their knowledge and preparedness for the board exam.
Do Check: CBSE Class 10 Science Paper Analysis 2025
CBSE Class 10 Science Syllabus Chapter 1 Chemical Reactions and Equations
The first chapter in the Class 10 Science syllabus introduces key Chemistry concepts. It explains how chemical reactions occur and how to write chemical equations correctly. The chapter also teaches students how to balance chemical equations and understand the role of reactants, products, and their physical states in a complete equation.
Below is a table listing all the topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 1 Chemical Reactions and Equations | |
| 1.1 | Chemical Equation |
| 1.2 | Balanced Chemical Equation |
| 1.3 | Implication of a Balanced Chemical Equation |
| 1.4 | Types of Chemical Reactions |
CBSE Class 10 Science Syllabus Chapter 2 Acids, Bases, and Salts
This chapter introduces the basic concepts of acids and bases. It explains their properties, how they react, and how to tell them apart. The chapter also highlights the importance of salts and their role alongside acids and bases.
Below is a table listing all the topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 2 Acids, Bases, and Salts | |
| 2.1 | Definition in Terms of Furnishing of H+ and OH- ions |
| 2.2 | General Properties |
| 2.3 | Examples and Uses |
| 2.4 | Concept of pH Scale |
| 2.5 | Properties and Uses of Sodium Hydroxide |
CBSE Class 10 Science Syllabus Chapter 3 Metals and Non-metals
This chapter explores the key concepts of metals and non-metals. Students learn how metals are separated from non-metals and the differences between conductors and insulators. It also covers the physical and chemical properties of metals and non-metals.
Below is a table listing all the topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 3 Metals and Non-metals | |
| 3.1 | Properties of Metals and Non-metals |
| 3.2 | Reactivity Series |
| 3.3 | Formation and Properties of Ionic Compounds |
| 3.4 | Basic Metallurgical Processes |
| 3.5 | Corrosion and its Prevention |
Do Check: CBSE Class 10 Science Answer Key 2025
CBSE Class 10 Science Syllabus Chapter 4 Carbon and Its Compounds
This chapter explains the importance of carbon, one of the most essential elements in Chemistry. It covers the different compounds carbon can form due to its ability to bond in multiple ways (tetravalency) and form long chains (catenation). Understanding this chapter is crucial because carbon plays a key role in all living organisms and is widely used in daily life.
Below is a table listing all the topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 4 Carbon and Its Compounds | |
| 4.1 | Covalent Bonding in Carbon Compounds |
| 4.2 | Versatile nature of Carbon |
| 4.3 | Nomenclature of carbon Compounds |
| 4.4 | Differences Between Saturated and Unsaturated Hydrocarbons |
| 4.5 | Ethanol and Ethanoic Acid |
CBSE Class 10 Science Syllabus Chapter 5 Life Processes
This chapter introduces students to the basic functions of living organisms and the essential processes that keep life going. It explains how movement is a sign of life and covers important processes like nutrition, respiration, transportation of materials in the body, and waste removal.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 5 Life processes | |
| 5.1 | Living Being |
| 5.2 | Basic Concept of Nutrition |
| 5.3 | Respiration |
| 5.4 | Transportation |
| 5.5 | Excretion in Plants and Animals |
Do Check: CBSE Class 10 Science Previous Year Question Paper
CBSE Class 10 Science Syllabus Chapter 6 Control and Coordination
This chapter explains how living organisms regulate their body functions. It covers the human nervous system, which uses neurons to send messages, and explores how hormones help in controlling and coordinating processes in both plants and animals.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 6 Control and Coordination | |
| 6.1 | Tropic Movement in Plants |
| 6.2 | Introduction to Plants Hormones |
| 6.3 | Control and Coordination in Animals |
| 6.4 | Nervous System |
| 6.5 | Voluntary, Involuntary and Reflex Actions |
| 6.6 | Chemical Coordination |
| 6.7 | Animal Hormones |
CBSE Class 10 Science Syllabus Chapter 7 How do Organisms Reproduce
This chapter focuses on the important concept of reproduction. It explains how living organisms reproduce and introduces two main types: asexual and sexual reproduction. The chapter also discusses reproduction in both plants and animals, laying the foundation for more advanced learning in higher classes.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 7 Reproduction | |
| 7.1 | Reproduction in Plants and Animals |
| 7.2 | Reproductive Health |
| 7.3 | Safe Sex Vs HIV/AIDS |
| 7.4 | Child Bearing and Women Health |
CBSE Class 10 Science Syllabus Chapter 8 Heredity and Evolution
This chapter builds on the previous one by exploring heredity and evolution. It explains how traits are passed from one generation to another and how genetic variations occur, following Mendel’s principles. Understanding these concepts is especially important for students interested in science and medical fields in higher grades.
Do Check: CBSE Class 10 Science Important Topics 2025
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 8 Heredity and Evolution | |
| 8.1 | Heredity |
| 8.2 | Mendel’s Law of Inheritance |
| 8.3 | Brief Introduction to Sex Determination |
| 8.4 | Basic Concept of Evolution |
CBSE Class 10 Science Syllabus Chapter 9 Light- Reflection and Refraction
| CBSE Class 10 Science Syllabus Chapter 9 Light- Reflection and Refraction | |
| 9.1 | Reflection of Light at Curved Surfaces |
| 9.2 | Curved Mirror |
| 9.3 | Refraction of Light |
CBSE Class 10 Science Syllabus Chapter 10 The Human Eye and the Colourful World
This chapter explains the structure and function of the human eye. It covers different parts like the pupil, retina, and lens, and also discusses common vision problems such as nearsightedness and farsightedness, along with how lenses help correct them.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 10 The Human Eye and the Colourful World | |
| 10.1 | The Human Eye |
| 10.2 | Defects of Vision and Their Correction |
| 10.3 | Refraction of Light through Prism |
| 10.4 | Dispersion of White Light by a Glass Prism |
| 10.5 | Atmospheric Refraction |
| 10.6 | Scattering of Light |
CBSE Class 10 Science Syllabus Chapter 11 Electricity
This chapter covers important concepts of electricity, which have real-world applications and are important for board exams. It introduces key formulas used to solve numerical problems and explains how electric current flows through a conductor with the movement of electrons. The chapter also introduces important terms related to electricity.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 11 Electricity | |
| 11.1 | Potential difference and Electric Current |
| 11.2 | Ohm’s Law |
| 11.3 | Resistance and Resistivity |
| 11.4 | Series Combination of Resistors |
| 11.5 | Heating Effect of Electric current |
| 11.6 | Electric Power |
| 11.7 | Inter Relation Between P, V, I, R |
CBSE Class 10 Science Syllabus Chapter 12 Magnetic Effects of Electric Current
This chapter explores how electric current creates magnetic effects, which are used in many everyday applications. It introduces the concept of magnets, how they work, and explains how a compass needle acts as a small magnet. Students also learn about the north and south poles of a magnet and their role in magnetism.
Do Check: CBSE Class 10 Science Most Repeated Questions
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 12 Magnetic Effects of Electric Current | |
| 12.1 | Magnetic Field |
| 12.2 | Fleming’s Left Hand Rule |
| 12.3 | Electromagnetic Induction |
| 12.4 | Fleming’s Right Hand Rule |
| 12.5 | Direct Current and Alternating Current |
| 12.6 | Domestic Electric Circuit |
CBSE Class 10 Science Syllabus Chapter 13 Our Environment
This chapter explores the Earth’s ecosystem and its importance in supporting life. It explains how food chains are formed and their role in nature. Students also learn about the impact of human activities on the environment, including pollution and global warming.
Below is a table listing all the key topics covered in this chapter:
| CBSE Class 10 Science Syllabus Chapter 13 Our Environment | |
| 13.1 | Eco System |
| 13.2 | Environmental Problems |
| 13.3 | Ozone Depletion |
| 13.4 | Waste production and Their Solution |
| 13.5 | Biodegradable and Non-biodegradable Substances |
CBSE Class 10 Science Syllabus Deleted Syllabus
This table summarizes the specific sections of each chapter removed from the CBSE Class 10 Science syllabus 2025-26. Students must be aware of these changes and concentrate their studies on the remaining topics on the updated syllabus.
| Chapter | Deleted Syllabus |
| Periodic Classification of Elements | Whole Chapter Deleted |
| Heredity and Evolution | Basic concepts of evolution, evolution, and classification, evolution should not be equated with progress |
| Human Eye and the Colorful World | Application of scattering to explain the color change of the Sun at sunrise and sunset |
| Magnetic Effects of Current | Electric motor, electromagnetic induction, induced potential difference, induced current, Fleming’s Right Hand Rule, electric generator |
| Sources of Energy | Whole Chapter Deleted |
| Management of Natural Resources | Whole Chapter Deleted |
Why Refer to the CBSE Class 10 Science Syllabus 2025-26?
- The CBSE class 10 Science syllabus helps students stay on track with their exam preparation.
- It provides a clear idea about important chapters, helping students focus on high-weightage topics.
- Following the CBSE Class 10 Science Syllabus 2025-26 allows students to plan revision in a structured manner.
- It includes practical and project details that enhance conceptual learning.
By carefully studying the CBSE Class 10 Science Syllabus 2025-26, students can improve their understanding, manage their study time efficiently, and boost their confidence for the board exams.
Do Check: CBSE Class 10 Science Blueprint 2025
CBSE Class 10 Science Syllabus Preparation Tips
To ace their board exams, students should follow the preparation tips listed below:
- Time management is the most important task that any student must complete in order to achieve the highest possible grade.
- Science, like mathematics, requires consistent practice to master the skills and concepts. Practice with textbook examples, previous years’ question papers, and sample question papers.
- Science is all about theories, concepts, and formulae, and in order to grasp the subject and perform well in exams, one must first understand the underlying principles and concepts.
- Read, comprehend, and then derive formulas and solve problems based on them on your own. The student will not have to memorize every formula if they understand what it means, what it is used for, and how it is obtained.
CBSE Class 10 Science Syllabus 2025 FAQs
What are the key topics in the CBSE Class 10 Science syllabus?
The Class 10 Science syllabus includes important topics such as Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-Metals, Carbon and Its Compounds, Periodic Classification of Elements, Life Processes, Control and Coordination, Heredity and Evolution, Light - Reflection and Refraction, Electricity, Magnetic Effects of Electric Current, Sources of Energy, and Our Environment.
How can students effectively prepare for the Class 10 Science exam?
Students can prepare well by understanding each topic thoroughly, practicing numerical problems, revising regularly, and solving previous years' question papers. Making notes and clearing doubts on time can also help improve performance.
How is the Class 10 Science exam structured?
The Science exam consists of theory and practical assessments. The theory paper carries 80 marks, while the internal assessment, which includes practical work and projects, is worth 20 marks.
How much time is given for the Class 10 Science exam?
The Class 10 Science theory exam lasts for 3 hours. Students must manage their time efficiently to attempt all questions within the given duration.
Is scoring full marks in the Science exam possible?
Yes, with proper preparation, students can achieve full marks. Understanding concepts instead of memorizing, practicing diagrams, and solving numerical problems correctly can help secure high scores.
Why is knowing the Science syllabus in advance helpful?
Being familiar with the syllabus helps students plan their studies efficiently, focus on important topics, and allocate time accordingly. It also allows them to track syllabus changes and stay prepared.
What is the role of NCERT books in Class 10 Science preparation?
NCERT books provide a strong foundation for concepts and are essential for board exams. Many questions in CBSE exams are directly or indirectly based on NCERT content.
How can students improve their problem-solving skills in Science?
Regular practice, solving numerical problems, attempting sample papers, and understanding the logic behind each concept can help students enhance their problem-solving abilities.
What subjects are covered in the Class 10 Science syllabus?
The Science syllabus includes Physics, Chemistry, and Biology. These subjects cover various topics related to natural phenomena, chemical reactions, living organisms, and environmental issues.
Where can students find the updated Class 10 Science syllabus?
Students can access the latest syllabus on the CBSE official website or through reliable educational platforms. It is important to check for any updates or changes made by CBSE.
How are marks distributed in the Science exam?
The total Science exam carries 100 marks—80 for the written exam and 20 for internal assessments, which include practical work, assignments, and projects.
Are practicals important in Class 10 Science?
Yes, practicals help students understand concepts better and carry 20 marks in the final assessment. Performing experiments, maintaining practical notebooks, and understanding observations are crucial.
How many chapters are included in the Science syllabus?
The Class 10 Science syllabus includes 13 chapters covering Chemistry, Physics, and Biology topics.
Is the CBSE Science syllabus for 2025 updated?
Yes, CBSE updates its syllabus periodically. The latest syllabus can be downloaded from the CBSE website for detailed information.
Can students complete the syllabus on time before the exams?
Yes, with a well-planned study schedule, regular revisions, and consistent practice, students can complete the syllabus on time and perform well in the exams.
