CBSE Class 9 Science Syllabus 2023-24: Changes and Updates

BoardCBSE
Class9
Session2023-24
SubjectScience (086)
TypeSyllabus
Official Websitehttps://cbseacademic.nic.in
CBSE Class 9 Science Syllabus 2023-24

SCIENCE (Code No. 086)

CLASS – IX (2023-24)

  • Theory – 80 Marks
  • Internal Assessment – 20 Marks

COURSE STRUCTURE

Unit No.UnitMarks
IMatter - Its Nature and Behaviour25
IIOrganization in the Living World22
IIIMotion, Force, and Work27
IVFood, Food Production06
Total80

Theme: Materials

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. Heterogeneous and homogenous mixtures, colloids, and suspensions. Physical and chemical changes (excluding separating the components of a mixture).

Particle nature and their basic units: Atoms and molecules, Law of Chemical Combination, Chemical formula of common compounds, Atomic and molecular masses.

Structure of atoms: Electrons, protons and neutrons, Valency, Atomic Number and Mass Number, 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).

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, 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.

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.

Work, Energy, and Power: Work done by a Force, Energy, power; Kinetic and Potential energy; Law of conservation of energy (excluding commercial units of Energy).

Sound: Nature of sound and its propagation in various media, speed of sound, range of hearing in humans; ultrasound; the reflection of sound; echo.

Theme: Food

Unit IV: Food Production

Plant and animal breeding and selection for quality improvement and management; Use of fertilizers and manures; Protection from pests and diseases; Organic farming.

Download Class 9 Science Syllabus 2023-24 [pdf]

Also See:
CBSE Class 9 English Language & Literature Syllabus for 2023-24
CBSE Class 9 Maths Syllabus for 2023-24
CBSE Class 9 Social Science Syllabus for 2023-24
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