IGNOU-UNESCO Science Olympiad Syllabus 2010
CBSE (INDIA) CLASS IX : (Chemistry, Physics, Biology)
CLASS IX- SCIENCE SYLLABUS
I. Matter - ITS nature and behaviour
II. Organisation in living world
III. Motion, Force and Work
Unit I: MATTER - NATURE AND BEHAVIOUR
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. Heterogenous 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.
Valency. Chemical formula of common compounds
Structure of atom : Electrons, protons and neutrons; Isotopes and isobars.
Unit II: ORGANIZATION IN THE LIVING WORLD : (45) Periods
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, Thalophyta, Bryo phyta,
Pteridophyta, gymnosperms and Angiosperms). Major groups of animals (salient
features) (Non-chordates upto phyla and chordates upto classes).
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; chloroplast, mitochondria, vacuoles, ER, golgi apparatus; nucleus,
chromosomes - basic structure, number. Tissues, organs, organ systems, organism.
Structure and functions of animal and plant tissues (four types in animals;
merismatic and permanent tissues in plants).
Health and diseases : Health and its failure. Disease and its causes.
Diseases caused by microbes and their prevention - Typhoid, diarrhoea, malaria,
hepatitis, rabies, AIDS, TB, polio; pulse polio programme.
Transport of materials in the living systems : Diffusion / exchange of
substances between cells and their environment and between the cells themselves
in the living system; role in nutrition, water and food transport, excretion,
Theme : Moving things, people and ideas
Unit III: MOTION, FORCE AND WORK : (60) Periods
Motion: displacement, velocity; uniform and non-uniform motion along a
straight line; acceleration, distance - time and velocity-time graphs for
uniform and uniformly accelerated motion, 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,
inertia of a body, inertia and mass, momentum, force and acceleration.
Elementary idea of conservation of momentum, action and reaction forces.
Gravitation: Gravitation; universal law of gravitation, force of
gravitation of the earth (gravity), acceleration due to gravity; mass and
weight; free fall.
Work,Energy and Power : Work done by a force, energy, power; kinetic
and potential energy; law of conservation of energy.
Floatation: Thrust and pressure. Archimedes' principle, buoyancy,
elementary idea of relative density.
Sound: Nature of sound and its propagation in various media, speed of
sound, range of hearing in humans; ultrasound; reflection of sound; echo and
Structure of the human ear (auditory aspect only).