Rajasthan Board Science Syllabus for Class 9


Rajasthan Board Syllabus for Class 9 Science

 

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.

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. Heterogeneous and

homogenous mixtures, colloids and suspensions.

 

Structure of atom : Electrons, protons and neutrons; Isotopes and isobars.

 

Mole Concept : Relationship of mole to mass of the particles and numbers. Valency.

Chemical formula of common compounds.

 

Particle nature : basic units: atoms and molecules. Law of constant proportions. Atomic

and molecular masses.

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, Bryophyta, Pteriodophyta, gymnosperms and

Angiosperms). Major groups of animals (salient features) (Non-chordates upto phyla and

chordates up to classes).

 

Cell – basic Unit of life : Cell as a basic unit of life; prokaryotic and eukaryotic cells,

multicultural organisms; cell membrane and cell wall, cell organelles; chloroplast,

mitochondria, vacuoles, ER, golgi apparatus; nucleus, chromosomes – basic structure, number.

 

Tissues, organs, organs system, 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.

 

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.

 

Gravitation : Gravitation; universal law of gravitation, force of gravitation of the earth (gravity), acceleration due to gravity; mass and weight; free fall.

 

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.

 

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 SONAR. Structure of the human ear (auditory aspect only).

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

 

Prescribed Book :

Science- NCERT's Book Published under Copyright

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