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CBSE Revised Syllabus for Class 10 Science 2023-24

VSAT 2023

CBSE Class 10 Science Syllabus - Free PDF Download

As per the Class 10th Science syllabus released by the CBSE board. Students will be required to adhere to the NCERT 10th Syllabus in full. There are no revisions made to the syllabus of Class 10 Science for the current academic session. Students must ensure that they go through the complete Science Syllabus for Class 10 CBSE to know the various topics and marks distribution. The annual examination and periodic tests will be conducted in accordance with the same.

The NCERT 10th Science Syllabus will help them in their preparation. In order to keep the syllabus of Class 10 Science handy, students can download the free PDF of the same from Vedantu.

Last updated date: 24th May 2023
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CBSE Class 10 Science Revised Syllabus for 2023-24

Units No




Chemical Substances-Nature and Behaviour



World of Living



Natural Phenomena



Effects of Current



Natural Resources




Internal Assessment


Grand Total 


Theme: Materials 

Unit I: Chemical Substances - Nature and Behaviour 

Chapter -1 Chemical Reactions and Equations 

Chemical Reactions: Chemical equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, neutralization, oxidation and reduction. 

Chapter – 2 Acids, Bases and Salts 

Acids, Bases and Salts: Their definitions in terms of furnishing of H+ and OH- ions, General properties, examples and uses, concept of pH scale (Definition relating to logarithm not required), importance of pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris. 

Chapter – 3 Metals and Non – metals 

Metals and Non-metals: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds.

Theme: The World of the Living 

Unit II: World of Living 

Chapter – 6 Life Processes 

Life Processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants and animals. 

Theme: How Things Work 

Unit III: Natural Phenomena 

Chapter – 10 Light – Reflection and Refraction 

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature, principal axis, principal focus, focal length, mirror formula (Derivation not required), magnification.

Refraction; Laws of refraction, refractive index.

Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula (Derivation not required); Magnification. Power of a lens. 

Chapter – 11 Human Eye and Colourful World 

Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life.

Theme: Natural Phenomena 

Unit IV: Effects of Current 

Chapter – 12 Electricity 

Ohm’s law; Resistance, Resistivity, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors and its applications in daily life. Heating effect of electric current and its applications in daily life. Electric power, Interrelation between P, V, I and R. 

Chapter – 13 Magnetic Effects of Current 

Magnetic Effects of Current: Magnetic field, field lines, field due to a current carrying conductor, field due to current carrying coil or solenoid; Force on current carrying conductor, Fleming’s Left Hand Rule, Electric Motor, Electromagnetic induction. Induced potential difference, Induced current. Fleming’s Right Hand Rule. 

Theme: Natural Resources 

Unit V: Natural Resources 

Chapter – 15 Our Environment  Our Environment: Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable substances.

FAQs on CBSE Revised Syllabus for Class 10 Science 2023-24

1. What is the syllabus of CBSE Class 10 Science

CBSE has designed the syllabus for Class 10 in accordance with the latest pattern. The syllabus of class 10 science 2023-2024 consists of chapters: Chemical reactions, Acids, bases and salts, Metals and nonmetals, Carbon and its Compounds, Periodic Classification of elements, Life processes, How do organisms reproduce?, Heredity and Evolution, Light – Reflection and Refraction, Human eye and colourful world, Electricity, Magnetic effects of current, and Our Environment

2. How to score full marks in Class 10 CBSE exam?

Students are recommended to follow the NCERT books thoroughly as the questions are framed as per the same. Plus, you must also prefer to solve previous years question papers. This way, you will get familiar with the type of question you can expect this year and later. Besides, you can refer to solution materials and revision guides prepared by Vedantu from their website.

3. What is the internal assessment pattern of Class 10 CBSE board exam?

Every school affiliated to the CBSE needs to conduct three unit tests. Out of the three, best marks obtained in two unit tests will be counted, and from the same 10 marks will be sent to the Board. With regards to the practical classes, it must be carried out throughout the academic year and 5 marks will be added to the board result.

4. Does knowing the syllabus from before help the Class 10 student?

Yes, knowing the syllabus from before will help the Class 10 students. By going through the science syllabus from before helps students to understand the pattern for exams and help them to prepare accordingly. The syllabus pattern has changed so knowing it from before helps the students understand what they are going to learn and they can easily work on the chapters according to their timings. It will help students to prepare for exams before time and by going through the study materials, the student will be able to achieve the knowledge that is required and students also get the hint of syllabus, exam pattern, important questions and many more things. 

5. How to prepare for the CBSE Class 10 science 2023-2024 Examination?

Students can easily prepare for the 2023-2024 examination with the help of the syllabus provided from the Vedantu app or website. Try to solve all provided study materials. As there are proper study materials for science subjects, it will help students to learn the questions and also it helps to practice all the chapters at the same time. Students should go through all the syllabus and try to understand them deeply. Try to learn the whole syllabus and make clarity of every concept and always try to clear all the doubts at a time.

6. Why are the CBSE science syllabus helpful for Class 10 students?

Knowing the syllabus helps in improving problem-solving skills for Class 10 students. As science is an important subject for Class 10 as it helps in deciding which stream to choose, so it is always better for students to know what are the chapters they are going to study. It helps the students to create a strong strategy to understand and solve the paper at the exam. Having study materials allows students to compare their questions so that it makes it easy for students to understand the topic and solve questions fast. It also supports going through the entire science syllabus for 2023-2024 and making yourself aware of important chapters. 

7. Where to find CBSE Syllabus for Class 10 Science 2023-2024?

Students can easily find the syllabus for science subjects from the Vedantu app or Website. From here students can achieve the most reliable and accurate content and you can easily go through the content and learn as much as you can. Students can have the PDF of the science syllabus and it makes it easy for students to learn all the chapters concepts from the syllabus from before.