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CBSE Class 10 Science Syllabus for Board Exam

Preparing for the CBSE Class 10 Science board exam can seem daunting, but with the right guidance and understanding of the syllabus, students can approach it confidently. In this blog, we’ll delve into the CBSE Class 10 Science syllabus for the 2024 board exam, covering the subject-wise topics and essential chapters in Physics, Chemistry, and Biology. Let’s explore each section in detail to help you prepare effectively.

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    CBSE Class 10 Science Syllabus

    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.

    CBSE Class 10 Science Syllabus With Marking Scheme

    The CBSE Class 10 Science Syllabus for the academic year 2023-24 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 Subject-wise

    The CBSE Class 10 syllabus comprises Physics, Chemistry and Biology subjects. Here is the subject-wise syllabus of CBSE Class 10 Science.

    CBSE Class 10 Science syllabus for Physics

    The CBSE Class 10 Science syllabus for Physics covers several essential topics aimed at providing students with a foundational understanding of various physical phenomena. Here’s a breakdown of the syllabus for Physics:

    1. Electric Current and its Effects:
      • Introduction to electric current: Basic concepts of electric current, electric circuit, electric potential, and potential difference.
      • Conductors and insulators: Properties of materials concerning their ability to conduct or insulate electricity.
      • Ohm’s law and its applications: Relationship between voltage, current, and resistance in an electric circuit, and its practical applications.
      • Electric power and its calculation: Understanding the concept of electrical power and its calculation using the formula P = VI.
      • Heating effect of electric current: Effects of electric current on wires and resistors leading to heating, and its applications in devices like electric heaters and irons.
    2. Magnetic Effects of Electric Current:
      • Magnetic field and field lines: Understanding the magnetic field produced by electric current and its properties.
      • Electromagnetic induction: Phenomenon of electromagnetic induction and its applications in devices like generators and transformers.
      • Fleming’s left-hand rule and Fleming’s right-hand rule: Rules to determine the direction of force or induced current in a magnetic field.
      • Electric generator and its working principle: Understanding the working principle of an electric generator to convert mechanical energy into electrical energy.
      • Domestic electric circuits: Understanding the components and wiring of domestic electric circuits, including switches, fuses, and earthing.
    3. Source of Energy:
      • Different sources of energy: Overview of various sources of energy, including conventional and non-conventional sources.
      • Conventional and non-conventional sources: Understanding the differences between conventional sources like fossil fuels and non-conventional sources like solar and wind energy.
      • Renewable and non-renewable sources: Classification of energy sources based on their renewability and sustainability.
      • Environmental consequences of energy usage: Impact of energy production and consumption on the environment, including pollution and climate change.
    4. Reflection and Refraction of Light:
      • Laws of reflection: Understanding the laws governing the reflection of light from smooth and rough surfaces.
      • Reflection of light by curved surfaces: Understanding the formation of images by spherical mirrors and their characteristics.
      • Refraction of light and its causes: Phenomenon of refraction and its causes when light passes from one medium to another.
      • Refraction through a prism and its applications: Deviation of light through a prism and its applications in dispersion of light.
      • Lenses and their types: Understanding the types of lenses, their properties, and their applications in optical devices like cameras and microscopes.
    5. Human Eye and Colorful World:
      • Structure and functioning of the human eye: Anatomy of the human eye and its role in vision.
      • Defects of vision and their corrections: Common vision problems like myopia and hyperopia, and their correction using lenses.
      • Dispersion of light and formation of a rainbow: Phenomenon of dispersion of light and its role in the formation of a rainbow.
      • Atmospheric refraction and its effects: Refraction of light in the Earth’s atmosphere and its effects on celestial objects like stars and the Sun.

    CBSE Class 10 Science syllabus for Chemistry

    The CBSE Class 10 Science syllabus for Chemistry covers several essential topics, including:

    1. Acids, Bases, and Salts:
      • Introduction to acids, bases, and salts.
      • Properties and uses of acids and bases.
      • pH scale and its significance in measuring acidity and alkalinity.
      • Types of salts and their preparation methods.
      • Neutralization reactions and their importance in daily life.
    2. Metals and Non-metals:
      • Properties and characteristics of metals and non-metals.
      • Reactivity series of metals and their reactions.
      • Extraction of metals from their ores.
      • Corrosion of metals and methods to prevent it.
      • Uses of metals and non-metals in various industries and everyday life.
    3. Carbon Compounds:
      • Introduction to carbon compounds and organic chemistry.
      • Classification of carbon compounds based on their structure and properties.
      • Functional groups and their role in determining the properties of organic compounds.
      • Nomenclature and isomerism in carbon compounds.
      • Chemical properties and reactions of carbon compounds.
    4. Periodic Classification of Elements:
      • Historical development of the periodic table.
      • Modern periodic table and its significance.
      • Periodic trends in the properties of elements, such as atomic size, ionization energy, and electronegativity.
      • Periodicity in chemical and physical properties of elements.
      • Classification of elements into groups and periods based on their properties.
    5. Chemical Reactions and Equations:
      • Types of chemical reactions, including combination, decomposition, displacement, and double displacement reactions.
      • Balancing chemical equations to maintain the law of conservation of mass.
      • Stoichiometry and its applications in predicting the quantities of reactants and products in chemical reactions.
      • Corrosion as a chemical reaction and methods to prevent it.
      • Writing and interpreting chemical equations to represent various chemical processes.

    CBSE Class 10 Science syllabus for Biology

    The CBSE Class 10 Science syllabus for Biology covers a range of fascinating topics that delve into the intricate workings of living organisms and their interactions with the environment. Here’s a brief overview of each section:

    1. Life Processes:
      • This section explores the various processes essential for sustaining life, including nutrition, respiration, transportation, and excretion in organisms. Students learn about the mechanisms through which living organisms obtain energy, exchange gases, and eliminate waste products to maintain homeostasis.
    2. Control and Coordination:
      • Control and Coordination delves into the nervous and endocrine systems, which regulate and coordinate the activities of different body parts. Students understand the structure and function of neurons, hormones, and sensory organs, along with reflex actions and chemical coordination mechanisms in plants and animals.
    3. Reproduction:
      • Reproduction elucidates the different modes of reproduction in organisms, including sexual and asexual reproduction. Students learn about the reproductive organs in humans, the process of fertilization, embryonic development, and the menstrual cycle. Additionally, this section covers aspects of reproductive health and contraception.
    4. Heredity and Evolution:
      • Heredity and Evolution delve into the principles of inheritance and the mechanisms driving evolutionary change. Students explore Mendel’s laws of inheritance, chromosomal theory, genetic variations, and the process of speciation. They also learn about the evidences and theories of evolution, including natural selection and adaptation.
    5. Our Environment:
      • Our Environment focuses on the ecosystem and the interactions between organisms and their surroundings. Students study the components of an ecosystem, food chains, food webs, ecological pyramids, and the impact of human activities on the environment. This section also emphasizes the importance of conservation and sustainable development.


    The CBSE Class 10 Science syllabus for the board exam 2024 covers a wide range of topics in Physics, Chemistry, and Biology, providing students with a comprehensive understanding of fundamental scientific concepts. By studying each subject and topic thoroughly and practicing regularly, students can prepare effectively and perform well in the upcoming board examination. Best of luck!


    Is CBSE released syllabus for 2024?

    Yes, the Central Board of Secondary Education released the CBSE Class 10 syllabus 2023-24 on the official website -

    What is the deleted portion of science class 10 2023-24?

    The revised syllabus for Class 10 Science in the academic year 2023-24 has deleted entire chapters covering topics such as sustainable management of natural resources, periodic classification of elements, and sources of energy. Additionally, Chapter 9 of the syllabus has undergone significant revision, with the title now replaced by Heredity.

    What is the pattern of CBSE exam for 2024 class 10?

    The pattern of CBSE (Central Board of Secondary Education) exams for Class 10 in 2024 typically includes multiple-choice questions (MCQs), short answer questions, and long answer questions covering various subjects as per the prescribed syllabus.

    What is the weightage for class 10 science 2024?

    The CBSE Class 10 Exam 2024 will have a total of 100 marks, where the theory paper is for 80 marks and internal assessments are for 20 marks.

    Is CBSE 2024 datesheet released?

    The CBSE (Central Board of Secondary Education) datesheet for the year 2024 has been released on their the official website.

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