CBSE Class 10 Science Syllabus 2025-26 | For 2026 Board Exams | Free PDF Download

CHECK OUT OTHER CBSE SYLLABUS CLASS 10 FOR ALL SUBJECTS FOR 2025-26 EXAMS:

This article contains the CBSE Syllabus for Class 10 Science for the academic year 2025-2026 examination. Class 10^th is one of the most challenging years in a student's life because they will take their first board exams. The CBSE Syllabus for Class 10 Science for the academic year 2025-2026 has been created by the Board's requirements. Students should read through the Class 10 Science Syllabus to know the main and sub-topics of the course. The CBSE Syllabus also contains a unit-by-unit marking structure, practicals, assignments, and projects. The CBSE Class 10 Science Syllabus 2025-26 is meant to help students in planning their study schedule in accordance with the board exams.

CBSE Class 10 Science Syllabus with Marking Scheme

As students can see in the table below that the Class 10 CBSE Science Syllabus 2025-26 is divided into 5 units with units 1 and 2 holding the highest weightage among others.

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

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CBSE Class 10 Science Syllabus Structure (Subject-wise):

The CBSE Class 10 Science syllabus is designed to provide students with a comprehensive understanding of the fundamental concepts of science. The syllabus is divided into three sections: Physics, Chemistry, and Biology. Each section is further divided into chapters that cover a range of topics. The CBSE Class 10 Science syllabus is designed to be challenging yet accessible, and it provides students with the opportunity to develop their scientific knowledge and understanding.

The CBSE Class 10 Science syllabus for Physics includes the following topics:

• Electric Current and its Effects: This section covers the concepts of electric current, its effects, and the factors that affect the strength of electric current.

• Magnetic Effects of Electric Current: This section covers the concepts of magnetic effects of electric current, including electromagnetic induction and alternating current.

• Source of Energy: This section covers the concepts of sources of energy, including conventional and non-conventional sources.

• Reflection and Refraction of Light: This section covers the concepts of reflection and refraction of light, including mirror and lens formula, and refraction through a prism.

• Human Eye and Colorful World: This section covers the concepts of the human eye, including the structure and working of the human eye and the defects of vision. 

The CBSE Class 10 Science syllabus for Chemistry includes the following topics:

• Acids, Bases, and Salts: This section covers the concepts of acids, bases, and salts, including the pH scale and the properties of acids and bases.

• Metals and Non-metals: This section covers the concepts of metals and non-metals, including their properties, uses, and reactivity.

• Carbon Compounds: This section covers the concepts of carbon compounds, including their properties, uses, and classification.

• Periodic Classification of Elements: This section covers the concepts of the periodic classification of elements, including the periods and groups of elements in the periodic table.

• Chemical Reactions and Equations: This section covers the concepts of chemical reactions and equations, including the types of chemical reactions and the balancing of chemical equations.

The CBSE Class 10 Science syllabus for Biology includes the following topics:

• Life Processes: This section covers the concepts of life processes, including nutrition, respiration, and transportation in animals and plants.

• Control and Coordination: This section covers the concepts of control and coordination in animals and plants, including the nervous and endocrine systems.

• Reproduction: This section covers the concepts of reproduction in animals and plants, including asexual and sexual reproduction.

• Heredity and Evolution: This section covers the concepts of heredity and evolution, including the laws of inheritance and the theory of evolution.

• Our Environment: This section covers the concepts of our environment, including the different types of natural resources and their conservation.

Internal Assessment (20 Marks)

• Periodic Assessment – 10 marks

• Subject Enrichment (Practical Work) – 05 marks

• Portfolio – 05 marks

CBSE Class 10 Science Syllabus for Practical:

Because internal assessments are worth a total of 20 marks, students must not avoid the value of practicals. They should focus on practicals in addition to the theory CBSE Syllabus for Class 10 Science. So, here is the CBSE Class 10 Science Practical syllabus. Students can also access the CBSE Class 10 Science Lab Manual online.

Other Recommended Books | Study Materials (All Subjects)

The experiment list gives inspiration for new Science projects, as well as a collection of experiments and activities. As a result, students must read this Practical CBSE Syllabus for Class 10 Science.

CBSE Class 10 Practical Syllabus for Science:

• A. Finding the pH of the following samples by using pH paper/universal indicator: Unit-I

(i) Dilute Hydrochloric Acid

(ii) Dilute NaOH solution

(iii) Dilute Ethanoic Acid solution

(iv) Lemon juice

(v) Water

(vi) Dilute Hydrogen Carbonate solution

Studying the properties of acids and bases (HCl & NaOH) based on their reaction with:

• Litmus solution (Blue/Red)

• Zinc metal

• Solid sodium carbonate

Performing and observing the following reactions and classifying them into:

• Combination reaction

• Decomposition reaction

• Displacement reaction

• Double displacement reaction

• Action of water on quicklime

• Action of heat on ferrous sulphate crystals

• Iron nails kept in copper sulphate solution

• Reaction between sodium sulphate and barium chloride solutions

A. Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions:

• ZnSO₄(aq)

• FeSO₄(aq)

• CuSO₄(aq)

• Al₂(SO₄)₃(aq)

• Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the above result.

• Identify the different parts of an embryo of a dicot seed (peas, gram or red kidney bean).

• Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determining its resistance and also plotting a graph between V and I.

• Experimentally show that carbon dioxide is given out during respiration.

• Determination of the focal length of (i) Concave mirror and (ii) Convex lens by obtaining the image of a distant object.

• Preparing a temporary mount of a leaf peel to show stomata.

• Studying (a) binary fission in Amoeba and (b) budding in yeast and Hydra with the help of prepared slides.

Study of the following properties of acetic acid (ethanoic acid)

• i) Odour

• ii) solubility in water

• iii) effect on litmus

• iv) reaction with Sodium Hydrogen Carbonate

Study the comparative cleaning capacity of a soap sample in soft and hard water.

• Determination of the focal length of:

• i) Concave mirror

• ii) Convex lens

By obtaining the image of a distant object.

• Tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.

• Tracing the path of the rays of light through a glass prism. 

CBSE Class 10 Science Syllabus Preparation Tips:

Learning Process: It is impossible to learn science by memorizing. Learn the principles with examples and applications. For each subject, read and understand the underlying theory. You won't have to memorise every formula if you know what it means, what it's used for, and how it's acquired if you read, understand, and then derive formulae on your own and solve problems based on them.

Study Everyday: No matter how insignificant it may appear, studying for even a short period of time each day will help you get better outcomes. Consistency in small periods of study every day will beat long hours of study on exam night.

Time Management: One of the most important aspects of passing the CBSE Class 10 Science Exam is time management. To cover a large amount of material and then attempting the full question paper in a given period of time requires a good handle on time management. 

Use of CBSE Class 10 Science Syllabus for the Class 10 Board Exams

The CBSE Class 10 Science syllabus is divided into three sections: Physics, Chemistry, and Biology. Each section is further divided into chapters that cover a range of topics. The Physics section covers topics such as Electric Current and its Effects, Magnetic Effects of Electric Current, Source of Energy, Reflection and Refraction of Light, and the Human Eye and Colorful World.

The Chemistry section covers topics such as Acids, Bases, and Salts, Metals and Non-metals, Carbon Compounds, Periodic Classification of Elements, and Chemical Reactions and Equations. The Biology section covers topics such as Life Processes, Control and Coordination, Reproduction, Heredity and Evolution, and Our Environment.

Setting Study Goals: The CBSE Class 10 Science syllabus can be used to set specific, measurable study goals. Students can use the syllabus to identify the topics and concepts that they need to focus on, and they can use this information to set goals for themselves. By setting clear, specific goals, students can stay motivated and on track as they prepare for their exams.

Identifying Weaknesses: The CBSE Class 10 Science syllabus can be used to identify areas where students may need extra help. By carefully reviewing the syllabus, students can identify topics and concepts that they are struggling with, and they can take steps to address these weaknesses. This might include seeking additional help from a teacher, working with a tutor, or reviewing related materials.

Creating a Study Plan: The CBSE Class 10 Science syllabus can be used to create a study plan that is tailored to the student's needs. By reviewing the syllabus, students can identify the topics and concepts that they need to focus on, and they can use this information to create a study plan that is tailored to their specific needs. This might include setting aside specific times for studying, prioritizing certain topics, or using specific study materials.

Preparing for the Exam: The CBSE Class 10 Science syllabus can be used to prepare for the board exams. By reviewing the syllabus, students can identify the topics and concepts that will be covered on the exam, and they can use this information to prepare for the exam. This might include reviewing key formulas, practicing sample problems, or reviewing related materials.

Practice Tests and Mock Exams: The CBSE Class 10 Science syllabus can be used to prepare for practice tests and mock exams. By reviewing the syllabus, students can identify the topics and concepts that will be covered on the exam and they can use this information to prepare for practice tests and mock exams. This might include taking practice tests, reviewing sample problems, and working through related materials.

Time Management: The CBSE Class 10 Science syllabus can be used to manage time effectively during the board exams. By reviewing the syllabus and becoming familiar with the topics and concepts covered, students can plan their time during the exams and make sure they have enough time to complete all the questions.

Conclusion:

In conclusion, the CBSE Class 10 Science syllabus is designed to provide students with a comprehensive understanding of the fundamental concepts of science. The syllabus covers a wide range of topics in Physics, Chemistry, and Biology, and it is designed to be challenging yet accessible. By studying and understanding the CBSE Class 10 Science syllabus, students can improve their performance in science and achieve success in their studies.