CBSE Class 10 Science Syllabus 2023-24

CBSE Class 10 Science Syllabus 2023-24 – T

Unit No.UnitMarks
IChemical Substances-Nature and Behaviour25
IIWorld of Living25
IIINatural Phenomena12
IVEffects of Current13
VNatural Resources05
 Internal assessment20
 Grand Total100

CBSE Class 10 Science Syllabus 2022 – 23

Unit I: Chemical Substances – Nature and Behaviour

Chapter- 1 Chemical Reactions Chemical equation

  • Chemical equation
  • Balanced chemical equation, Implications of a balanced chemical equation
  • Types of chemical reactions- Combination, decomposition, displacement, double displacement, precipitation, endothermic exothermic reactions, oxidation, and reduction

Chapter-2 Acids, bases and salts

  • Their definitions in terms of furnishing of H+ and OH– ions,
  • General properties, examples and uses, neutralization, the 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 & Non-metals

  • Properties of metals and non-metals
  • Reactivity series
  • Formation and properties of ionic compounds
  • Basic metallurgical processes
  • Corrosion and its prevention.

Chapter-4 Carbon compounds

  • Covalent bonding in carbon compounds
  • Versatile nature of carbon
  • Homologous series
  • Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes)
  • Difference between saturated hydro carbons and unsaturated hydrocarbons.
  • Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction).
  • Ethanol and Ethanoic acid (only properties and uses)
  • Soaps and detergents.

Unit II: World of Living

Chapter-5 Life Processes

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

Chapter-6 Control and co-ordination in animals and plants

  • Tropic movements in plants
  • Introduction of plant hormones
  • Control and co-ordination in animals: Nervous system
  • Voluntary, involuntary and reflex action
  • Chemical co-ordination: animal hormones

Chapter-7 Reproduction

  • Reproduction in animals and plants (asexual and sexual) reproductive health-need and methods of family planning.
  • Safe sex vs HIV/AIDS
  • Childbearing
  • Women’s health

Chapter-8 Heredity and Evolution

  • Heredity; Mendel’s contribution-  Laws for inheritance of traits
  • Sex determination: brief introduction; (topics excluded – evolution; evolution and classification and evolution should not be equated with progress).

Unit III: Natural Phenomena

Chapter-9 Reflection & Refraction

  • Reflection of light by curved surfaces; Images formed by spherical mirrors, center 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.
  • Functioning of a lens in the human eye, defects of vision and their corrections, and applications of spherical mirrors and lenses.
  • Refraction of light through a prism, dispersion of light, scattering of light, and applications in daily life (excluding the color of the sun at sunrise and sunset).

Unit IV: Effects of Current

Chapter-10 Electricity Ohm’s law; 

  • Electric current, potential difference, and electric current.
  • Resistance, Resistivity, and 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-11 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 a current-carrying conductor
  • Fleming’s Left Hand Rule
  • Direct current
  • Alternating current: frequency of AC
  • Advantage of AC over DC
  • Domestic electric circuits.

Unit V: Natural Resources

Chapter-12. Our Environment 

  • Eco-system,
  • Environmental problems
  • Ozone depletion
  • Waste production and their solutions
  • Biodegradable and non-biodegradable substances

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