COURSE STRUCTURE CLASS IX (Annual Examination)

Unit No. Unit Marks
I Matter-Its Nature and Behaviour 27
II Organization in the Living World 26
III Motion, Force and Work 27
Total 80
Internal Assessment 20
Grand Total 100
Theme: Materials
Unit I: Matter- It’s Nature and Behaviour
Nature of matter: Elements, compounds and mixtures. Heterogeneous and homogenous
mixtures, colloids and suspensions.
Particle nature and their 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.
Theme: The World of the Living
Unit II: 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 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).
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 III: 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, 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.
Work, energy and power: Work done by a Force, Energy, power; Kinetic and Potential
energy; Law of conservation of energy.
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ONLY FOR INTERNAL ASSESSMENT
Note: Learners are assigned to read the below listed part of Unit IV. They can be
encouraged to prepare a brief write up on any one concept of this Unit in their Portfolio.
This may be an assessment for Internal Assessment and credit may be given (Periodic
assessment/Portfolio). This portion of the Unit is not to be assessed in the year-end
examination.
Theme: Natural Resources: Balance in nature
Unit IV: 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 and Nitrogen.