CBSE Syllabus For Class 9 Science For Year 2018 – 2019

CBSE – Central Board of Secondary Education has presented syllabus of CBSE class 9 for the academic year 2018 – 2019. CBSE Syllabus For Class 9 Science is helpful for Schools following NCERT publications. To understand all the topics with best visuals, LearnFatafat offers you CBSE Class 9 Science Course.

CBSE Syllabus For Class 9 Science

CBSE Syllabus For Class 9 science

  • Unit I:Matter-Nature and Behaviour (23 Marks)
    • Definition of matter; solid, liquid and gas; characteristics – shape, volume, density;
      change of state-melting (absorption of heat), freezing, evaporation (cooling by
      evaporation), condensation, sublimation.
    • Nature of matter: Elements, compounds and mixtures. Heterogeneous and
      homogenous mixtures, colloids and suspensions.
    • Particle nature, basic units: Atoms and molecules, Law of constant proportions,
      Atomic and molecular masses. Mole concept: Relationship of mole to mass of the
      particles and numbers.
    • Structure of atoms: Electrons, protons and neutrons, valency, chemical formula of
      common compounds. Isotopes and Isobars.
  • Unit II: Organization in the Living World (20 Marks)
    • Cell – Basic Unit of life : Cell as a basic unit of life; prokaryotic and eukaryotic cells, multicellular organisms; cell membrane and cell wall, cell organelles and cell inclusions; chloroplast, mitochondria, vacuoles, endoplasmic reticulum, Golgi apparatus; nucleus, chromosomes- basic structure, number.
    • Tissues, Organs, Organ System, Organism:
      Structure and functions of animal and plant tissues (only four types of tissues in
      animals; Meristematic and Permanent tissues in plants).
    • Biological Diversity: Diversity of plants and animals – basic issues in scientific naming, basis of classification. Hierarchy of categories / groups, Major groups of plants(salient features) (Bacteria, Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and
      Angiosperms). Major groups of animals (salient features) (Non-chordates upto phyla
      and chordates upto classes).
    • Health and Diseases: 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
  • Unit III: Motion, Force and Work (27 Marks)
    • Motion: Distance and displacement, velocity; uniform and non-uniform motion along a straight line; acceleration, distance-time and velocity-time graphs for uniform motion
      and uniformly accelerated motion, derivation of equations of motion by graphical
      method; elementary idea of uniform circular motion.
    • Force and Newton’s laws : Force and Motion, Newton’s Laws of Motion, Action and Reaction forces, Inertia of a body, Inertia and mass, Momentum, Force and
      Acceleration. Elementary idea of conservation of Momentum.
    • Gravitation: Gravitation; Universal Law of Gravitation, Force of Gravitation of the earth (gravity), Acceleration due to Gravity; Mass and Weight; Free fall.
    • Floatation: Thrust and Pressure. Archimedes’ Principle; Buoyancy; Elementary idea of Relative Density.
    • Work, energy and power: Work done by a Force, Energy, power; Kinetic and Potential energy; Law of conservation of energy.
    • Sound: Nature of sound and its propagation in various media, speed of sound, range of hearing in humans; ultrasound; reflection of sound; echo and SONAR. Structure of the Human Ear (Auditory aspect only).
  • Unit IV: Our Environment (06 Marks)
    • Physical resources :Air, Water, Soil. 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 and Nitrogen.
  • Unit V: Food Production (04 Marks)
    Plant and animal breeding and selection for quality improvement and management;
    Use of fertilizers and manures; Protection from pests and diseases; Organic farming.

Source and Credits:

Source and Credits: Syllabus is taken from CBSE website. LearnFatafat is not responsible for any changes in the syllabus. Students are requested to refer in case of any changes.

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