SCIENCE DELETED PORTION

 

CBSE Class 10 Science Deleted Syllabus 2022-23

Chapter NameTopics Deleted
Periodic Classification

(Full Chapter Deleted)

Need for classification, early attempts at classification of elements (Dobereiner’s Triads, Newland’s Law of Octaves, and Mendeleev’s Periodic Table), Modern periodic table, gradation in properties, valency, atomic number, metallic and non-metallic properties.
Heredity and EvolutionBasic concepts of evolution: evolution; evolution and classification and evolution should not be equated with progress
The Human Eye and the Colourful WorldApplication of scattering in explaining colour change.
Magnetic Effects of CurrentElectric Motor, Electromagnetic induction. Induced potential difference, Induced current. Fleming’s Right Hand Rule, Electric Generator,
Sources of Energy

(Full Chapter Deleted)

Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy; Nuclear energy. Renewable versus non-renewable sources of Energy.
Management of Natural Resources

(This chapter will not be assessed in the year-end examination. It needs to be prepared only for Internal Assessment.)

Conservation and judicious use of natural resources. Forest and wildlife: Coal and Petroleum conservation. Examples of people’s participation for conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.

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