CBSE Class 10 Science Syllabus 2025-26 Latest Download PDF

 CBSE Class 10 Science Syllabus 2025-26:   The CBSE Class 10 Science Syllabus for the 2025-26 session has been officially released, outlining the key topics and chapters that students need to focus on to prepare for their board exams.

This syllabus is designed to provide a solid foundation in Physics, Chemistry, and Biology, ensuring that students are well-prepared for higher studies.

It includes essential subjects such as Matter, Force, Motion, Food Production, and Organization in the Living World, with practical assessments and internal evaluations contributing to the overall score.

By following this syllabus, students can effectively plan their studies, address any challenging areas, and improve their performance in the upcoming board exams.

CBSE Class 10 Science Syllabus 2025-26

The CBSE Class 10 Science Syllabus for 2025-26 has been released, and it covers a comprehensive set of topics across three key areas: Physics, Chemistry, and Biology. The Class 10 syllabus is designed to help students build a strong foundation in science concepts and prepare for their board exams. Here’s a breakdown of the units and the marks distribution:

Units and Marks Distribution:

Unit Breakdown:

1. Chemical Substances - Nature and Behaviour
   This unit covers key chemistry topics like chemical reactions, acids, bases, salts, and metals/non-metals.

2. World of Living
   This section focuses on biology, including life processes, reproduction, heredity, and the organization of living organisms.

3. Natural Phenomena
   Topics in this section include the study of light, reflection, and refraction, and phenomena like the rainbow and dispersion.

4. Effects of Current
   This unit deals with electricity and magnetism, discussing electric current, its effects, and the relationship between electricity and magnetism.

5. Natural Resources
   Students will study the importance of natural resources, their management, and the ecological impact of human activity.

Internal Assessment (20 Marks):

The internal assessment includes periodic tests, practical work, and portfolio evaluations. This section encourages students to actively engage in experiments and practice their theoretical knowledge in real-world scenarios.

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.

CBSE Class 10 Science Syllabus Chapter 1 Chemical Reactions and Equations

Class 10 Science Syllabus Chapter 1 Chemical Reactions and Equations : The first chapter of the CBSE class 10 Science syllabus provides an introduction to various topics in Chemistry. Additionally, it covers the formation of chemical equations and the proper way to answer chemical equation-based questions. Moreover, the chapter focuses on the concept of balancing equations and includes information about the reactants, products, and their physical states in a complete chemical equation.

CBSE Class 10 Sample Paper

The following table includes all the topics covered in the class 10 Science chapter, Chemical Reactions and Equations:

CBSE Class 10 Science Syllabus Chapter 2 Acids, Bases, and Salts

Class 10 Science Syllabus Chapter 2 Acids, Bases, and Salts This chapter of the CBSE class 10 Science syllabus explains the fundamental concepts of acids and bases. Additionally, it explores different reactions and methods to differentiate between acids and bases. Furthermore, the chapter emphasises the significance of salts in addition to acids and bases. The following table includes all the topics covered in Acids, Bases, and Salts:

CBSE Class 10 Science Syllabus Chapter 3 Metals and Non-metals

Class 10 Science Syllabus Chapter 3 Metals and Non-metals In this chapter, students delve into the essential concepts of metals and non-metals. Additionally, they learn about the separation of metals from non-metals and understand the features of conductors and insulators. Furthermore, the chapter explains the physical and chemical properties of elements classified as metals and non-metals. The following table includes all the sections covered in the class 10 Science chapter, Metals and Non-metals:

CBSE Class 10 Science Syllabus Chapter 4 Carbon and Its Compounds

Class 10 Science Syllabus Chapter 4 Carbon and Its Compounds This chapter of the class 10 Science syllabus provides an in-depth explanation of carbon, which is considered one of the most vital elements in Chemistry. Additionally, the chapter includes information for a wide range of compounds that carbon can form due to its tetravalency and the property of catenation. Students must pay attention to understanding this chapter because carbon exhibits versatility and forms the basis of all living organisms, and is used in various everyday items. The following table provides information for all the topics covered in class 10 chapter Carbon and its Compounds:

CBSE Class 10 Science Syllabus Chapter 5 Life Processes

Class 10 Science Syllabus Chapter 5 Life Processes In this CBSE class 10 Science syllabus chapter, students learn about the basic form of life on our planet and various processes that occur in our daily lives that are often unknown to us. Additionally, the topics of the chapter identify movement as a characteristic of life and highlight processes such as nutrition, respiration, material transport within the body, and waste excretion as crucial for sustaining life. The table below shows all the important topics covered in the Life Processes chapter:

CBSE Class 10 Science Syllabus Chapter 6 Control and Coordination

Class 10 Science Syllabus Chapter 6 Control and Coordination This chapter of the CBSE class 10 Science syllabus focuses on how organisms control their systems. The topics provide a detailed explanation of the human nervous system, which consists of interconnected neurons that facilitate the transmission of messages. Additionally, the chapter explores the functions of hormones in plants and animals, explaining the processes of control and coordination. The table below shows all the important topics covered in the Control and Coordination Chapter:

CBSE Class 10 Science Syllabus Chapter 7 How do Organisms Reproduce

Class 10 Science Syllabus Chapter 7 How do Organisms Reproduce This chapter of the CBSE class 10 Science syllabus holds great significance as it explores the central concept of reproduction. Additionally, in higher classes, students learn this chapter in a broader way. Therefore, students must pay attention to understanding the topics covered in this chapter, such as asexual and sexual reproduction, with further classification based on plants and animals. The table below shows all the sections included in the Reproduction chapter:

CBSE Class 10 Science Syllabus Chapter 8 Heredity and Evolution

Class 10 Science Syllabus Chapter 8 Heredity and Evolution This chapter is closely related to the previous chapter as it delves into heredity and evolution. In addition, it explains various traits and genetic blends following Mendelian principles. Thorough command of the concepts included in this chapter is specifically crucial for students who want to opt for the science and medical stream in higher grades. The following topics are elaborately covered in the Heredity and Evolution chapter:

CBSE Class 10 Science Syllabus Chapter 9 Light- Reflection and Refraction

Class 10 Science Syllabus Chapter 9 Light- Reflection and Refraction This is the first chapter of the physics section, which introduces the principles of light reflection. Here students learn about the rules governing reflection. Additionally, they understand the concepts used in a pinhole camera. Furthermore, the chapter covers the refraction of light through substances like water and prism. The table below shows all the topics of class 10 Science chapter Light- Reflection and Refraction:

CBSE Class 10 Science Syllabus Chapter 10 The Human Eye and the Colourful World

Class 10 Science Syllabus Chapter 10 The Human Eye and the Colourful World This Physics chapter included in the CBSE class 10 Science syllabus provides a comprehensive understanding of the human eye. Additionally, it explains various components of the eye, such as the pupil, retina, and lens. Moreover, this chapter provides information on common eye defects like nearsightedness/farsightedness and the use of lenses to correct these defects. The topics covered in the Human Eye and the Colourful World chapters include the following:

CBSE Class 10 Science Syllabus Chapter 11 Electricity

Class 10 Science Syllabus Chapter 11 Electricity This chapter explains the crucial topics of electricity, which holds practical applications and is relevant to board exams.

Students are introduced to essential formulas that are applied to solving numerical problems. Additionally, the chapter explains that electrical current consists of electrons that move through a conductor. The chapter further introduces additional terms related to electricity. The table below provides all the topics covered in the Electricity chapter:

CBSE Class 10 Science Syllabus Chapter 12 Magnetic Effects of Electric Current

Class 10 Science Syllabus Chapter 12 Magnetic Effects of Electric Current This CBSE Class 10 Science syllabus chapter explains the magnetic effects of electric current, which has widespread applications in everyday life.

Additionally, it introduces the concept of magnets and their functionality, with reference to compass needles serving as small magnets. Furthermore, students gain knowledge about the north and south poles of a magnet and their role in magnetic effects. The table below shows all the topics covered in the class 10 Science chapter, Magnetic Effects of Electric Current:

CBSE Class 10 Science Syllabus Chapter 13 Our Environment

Class 10 Science Syllabus Chapter 13 Our Environment The last chapter of the CBSE class 10 Science syllabus delves into the concept of Earth’s ecosystem and its significance in sustaining life. It also explains the formation of food chains as an integral part of life. Students must thoroughly cover this chapter to understand the environmental harm caused by human activities, leading to pollution and global warming. The table below shows all the topics covered in the class 10 Science chapter Our Environment: