Gujarat Board Science Syllabus for Class 9
Gujarat Board Syllabus for Class 9 Science
CLASS IX (THEORY)
Unit 1 : Food
Plant and animal breeding and selection for quality improvement and management ; use of fertilizers, manures; protection from pests and diseases; organic farming.
Theme : Materials (50 Periods)
Unit 2 : 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.
Theme : The World of the living (45 Periods)
Unit 3 : Organization in the living world.
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. 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.
Theme : Moving things, people and ideas (60 Periods)
Unit 4 : Motion, Force and Work
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, 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.
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).
Theme : Natural Resources (15 Periods)
Unit 5 : Our Environment
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, nitrogen
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