OFFICIAL SYLLABUS

SCIENCE (THEORY)

Theme: Food

Unit 1 : Food

plant and animal breeding for quality improvement and manpagment ;use of fertilizers ,measure ,protection frim pets and diseases;organic farming

Theme : Materials

Unit 2 : Matter - Nature and behavior

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. The chemical formula of common compounds. 

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

Theme: The World of the living

Unit 3: Organization in the living world

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, organisms.

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

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 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, the inertia of a body, inertia, mass, momentum, force, and acceleration. Elementary idea of conservation of momentum, action, and reaction forces.

Gravitation: Gravitation; universal law of gravitation, the 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.  

Sound : Nature of soundand its propagation in various media ,speed of sound ,range of hearing in human ;ultrasound.

reflrction of sound; echo and SONAR.

Stucture of the humn ear (auditory aspects only)

Theme : Nature Resources

Unit 5: Our Enviroment 

physical resources :Air , water, soil.

Air foe repitation ,for cumbution ,for moderating temperature ,moment of air and iys role in bringing rain across india.

Air, water, and soil pollution (brief introduction ) holes in the ozone layer and the probable damages.

bio- geochemical cycle in nature: water, oxygen, carbon, nitrogen

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