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  • Atoms and Molecules
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Atoms and Molecules. atoms and molecules. Law of constant proportions. Atomic and molecular masses. Mole Concept : Relationship of mole to mass of the particles and numbers. Valency. Chemical formula of common compounds.

  • Structure of the Atom
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Structure of the Atom. Electrons, protons and neutrons; Isotopes and isobars.

  • Diversity in Living Organisms
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Diversity in Living Organisms. Diversity of plants and animals - basic issues in scientific naming, basis of classification. Hierarchy of categories / groups, Major groups of plants (salient features) (Bacteria, Thalophyta, Bryo phyta, Pteridophyta, gymnosperms and Angiosperms). Major groups of animals (salient features) (Non-chordates upto phyla and chordates upto classes).

  • Work and Energy
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Work and Energy. Work done by a force, energy, power; kinetic and potential energy; law of conservation of energy.

  • Sound
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Sound. Nature of sound and its propagation in various media, speed of sound, range of hearing in humans; ul trasound; reflection of sound; echo and SONAR. Structure of the human ear (auditory aspect only).

  • Why Do We Fall ill
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Why Do We Fall ill. Health and its failure. Infectious and Non-infectious diseases, their causes and manifestation. Diseases caused by microbes (Virus, Bacteria and protozoans) and their prevention, Principles of treatment and prevention. Pulse polio programmes.

  • Natural Resources
    • CBSE chapter-wise solved test papers for class 9 science Summative Assessment-2 (Second Term) Natural Resources. Air for respiration, for combustion, for moderating temperatures, movements of air and its role in bringing rains across India. Air, water and soil pollution ( brief introduction). Holes in ozone layer and the probable damages. Bio-geo chemical cycles in nature : water, oxygen, carbon, nitrogen.

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