Tamil Nadu (TNBSE)Class 10Subject library

Tamil Nadu (TNBSE) Class 10 Science

Chapter-wise notes, previous year papers, sample papers and Q&A for Tamil Nadu (TNBSE) Class 10 science — free, syllabus-aligned, exam-ready.

23 chapters~460 min read totalFree · printable

Chapters

23 chapters — sequenced for revision and exam prep.

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Laws of Motion

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 1, Laws of Motion. Newton's three laws, inertia, momentum, force and impulse, the law of conservation of linear momentum, and Newton's universal law of gravitation (g, mass vs weight, apparent weight). Notes with formulas, worked numericals, common mistakes, book-back style practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Optics

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 2, Optics. Refraction of light, refractive index and Snell's law, refraction through a glass slab, total internal reflection and its applications, lenses and the lens formula, magnification and power of a lens, the human eye and defects of vision. Notes with formulas, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Thermal Physics

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 3, Thermal Physics. Heat and temperature, specific heat capacity and latent heat, thermal expansion of solids (linear, areal, cubical coefficients with β = 2α, γ = 3α), and the gas laws (Boyle, Charles, Avogadro). Notes with formulas, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Electricity

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 4, Electricity. Electric current and potential difference, Ohm's law, resistance and resistivity, resistors in series and parallel, electric power and energy, and the heating effect of current (Joule's law). Notes with formulas, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Acoustics

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 5, Acoustics. Sound as a longitudinal wave, reflection of sound, echo and the echo formula, reverberation, applications such as SONAR and stethoscope, the audible range, and ultrasonic/infrasonic sound with uses of ultrasound. Notes with formulas, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Nuclear Physics

Samacheer Kalvi (TN State Board) Class 10 Science — Physics Chapter 6, Nuclear Physics. Radioactivity and the three radiations (alpha, beta, gamma), nuclear fission and fusion, the nuclear reactor, applications of radioisotopes, and the biological effects and safety measures of radiation. Notes with key facts, comparisons, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Atoms and Molecules

Samacheer Kalvi (TN State Board) Class 10 Science — Chemistry Chapter 7, Atoms and Molecules. Atomic and molecular mass, the mole concept and Avogadro's number, molar mass and gram molecular mass, percentage composition, empirical and molecular formula, and vapour density. Notes with formulas, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Periodic Classification of Elements

Samacheer Kalvi (TN State Board) Class 10 Science — Chemistry Chapter 8, Periodic Classification of Elements. The modern periodic law and table, periodic properties (atomic radius, ionisation energy, electron affinity, electronegativity), and metallurgy — basic principles and the extraction of aluminium, copper and iron, alloys and corrosion. Notes with trends, processes, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 24 minRead chapter

Solutions

Samacheer Kalvi (TN State Board) Class 10 Science — Chemistry Chapter 9, Solutions. Composition and types of solutions, concentration (mass and volume percentage), solubility, hydrated and anhydrous salts with water of crystallisation, and efflorescent, deliquescent and hygroscopic substances. Notes with definitions, worked numericals, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Types of Chemical Reactions

Samacheer Kalvi (TN State Board) Class 10 Science — Chemistry Chapter 10, Types of Chemical Reactions. Chemical equations and balancing, the four main types (combination, decomposition, displacement, double displacement), oxidation–reduction (redox), and exothermic/endothermic reactions. Notes with examples, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Carbon and its Compounds

Samacheer Kalvi (TN State Board) Class 10 Science — Chemistry Chapter 11, Carbon and its Compounds. Why carbon is versatile (tetravalency and catenation), classification of organic compounds, hydrocarbons (alkanes, alkenes, alkynes), functional groups and homologous series, IUPAC nomenclature, ethanol and ethanoic acid, and soaps. Notes with examples, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Plant Anatomy and Plant Physiology

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 12, Plant Anatomy and Plant Physiology. Plant tissue systems, the internal structure of dicot and monocot roots, stems and leaves, and plant physiology — photosynthesis, respiration and transpiration. Notes with diagrams-in-words, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Structural Organisation of Animals

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 13, Structural Organisation of Animals. The body organisation of the leech and the rabbit — their digestive, respiratory, circulatory, nervous and reproductive systems — as examples of how animal bodies are organised into organ systems. Notes with comparisons, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Transportation in Plants and Circulation in Animals

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 14, Transportation in Plants and Circulation in Animals. Transport in plants (diffusion, osmosis, active transport, xylem and phloem), and circulation in animals (blood and its components, blood groups, the human heart and double circulation, blood vessels and lymph). Notes with comparisons, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 22 minRead chapter

Nervous System

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 15, Nervous System. The neuron and nerve impulse, the central and peripheral nervous systems, parts of the brain, reflex action and the reflex arc, and the role of cerebrospinal fluid. Notes with diagrams-in-words, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Plant and Animal Hormones

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 16, Plant and Animal Hormones. Chemical coordination through plant hormones (auxins, gibberellins, cytokinins, abscisic acid, ethylene) and animal hormones from endocrine glands (pituitary, thyroid, pancreas, adrenal). Notes with functions, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Reproduction in Plants and Animals

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 17, Reproduction in Plants and Animals. Asexual and sexual reproduction in plants (pollination, fertilisation), and human reproduction — the male and female reproductive systems, the menstrual cycle, fertilisation and reproductive health. Notes with diagrams-in-words, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Genetics

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 18, Genetics. Mendel's experiments and laws, the monohybrid cross with genotype and phenotype ratios, dominant and recessive traits, DNA and genes, sex determination, and mutation. Notes with crosses, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 20 minRead chapter

Origin and Evolution of Life

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 19, Origin and Evolution of Life. Theories of the origin of life (chemical evolution, the Miller–Urey experiment), evidences of evolution (fossils, homologous, analogous and vestigial organs), Lamarckism and Darwin's natural selection, and human evolution. Notes with comparisons, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Breeding and Biotechnology

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 20, Breeding and Biotechnology. Plant and animal breeding methods, the green and white revolutions, genetic engineering and recombinant DNA, GMOs and DNA fingerprinting, and applications of biotechnology. Notes with definitions, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Health and Diseases

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 21, Health and Diseases. The meaning of health, communicable and non-communicable (lifestyle) diseases such as diabetes, obesity, cancer and heart disease, the harms of substance abuse, and disease prevention. Notes with classifications, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Environmental Management

Samacheer Kalvi (TN State Board) Class 10 Science — Biology Chapter 22, Environmental Management. Renewable and non-renewable resources and energy, conservation strategies, waste management (biodegradable vs non-biodegradable, the 3 Rs, e-waste), and sustainable development. Notes with classifications, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 18 minRead chapter

Visual Communication

Samacheer Kalvi (TN State Board) Class 10 Science — Computer Science Chapter 23, Visual Communication. Animation and multimedia, types of animation (traditional, 2D, 3D, stop-motion), the principles of animation, animation software, and careers in the field. Notes with key terms, common mistakes, practice and quick revision.

Tamil Nadu State Board⏱ 16 minRead chapter