Description
The CBSE Class 10 Science syllabus for 2025 includes topics from Physics, Chemistry, and Biology, divided into five units: Chemical Substances – Nature and Behavior, World of Living, Natural Phenomena, Effects of Current, and Natural Resources. The theory paper is worth 80 marks, with the remaining 20 allocated to internal assessments.
Here’s a breakdown of the syllabus:
I. Chemical Substances – Nature and Behavior (Weightage: 25 Marks)
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Chemical Reactions and Equations:
This includes chemical reactions, equations, balanced chemical equations, and different types of chemical reactions (combination, decomposition, displacement, etc.).
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Acids, Bases, and Salts:
This section covers definitions, properties, examples, uses, and the pH scale.
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Metals and Non-metals:
Topics include properties, reactivity series, formation of ionic compounds, metallurgical processes, and corrosion.
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Carbon and its Compounds:
This covers covalent bonding, versatility of carbon, homologous series, nomenclature, and chemical properties.
II. World of Living (Weightage: 25 Marks)
- Life Processes: This includes nutrition, transportation, and excretion in living organisms.
- Control and Coordination: This covers control and coordination in animals and plants.
- How do Organisms Reproduce? This includes reproduction in animals and plants (asexual and sexual), reproductive health, and family planning.
- Heredity and Evolution: This covers heredity, Mendel’s contribution, and sex determination.
III. Natural Phenomena (Weightage: 12 Marks)
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Light – Reflection and Refraction:
This includes laws of reflection and refraction, refractive index, lens formula, and mirror formula.
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Human Eye and Colorful World:
This covers the human eye, its defects, and the phenomenon of scattering of light.
IV. Effects of Current (Weightage: 13 Marks)
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Electricity:This includes electric current, potential difference, Ohm’s law, resistance, resistivity, and factors affecting resistance.
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Magnetic Effects of Current:This covers magnetic field, magnetic field due to a current-carrying conductor, right-hand thumb rule, and electromagnetic induction.
V. Natural Resources (Weightage: 5 Marks)
- Sources of Energy: This includes different sources of energy and their conservation.
- Our Environment: This covers environmental pollution and its management.
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