Class IX Science

Matter In Our Surroundings

• 1.a Matter In Our Surroundings

• 1.b Characteristics Of Particles Of Matter

• 1.c States Of Matter
• 1.d Matter Changes Its State
• 1.e Evaporation

Is Matter Around Us Pure

• 2.a What Is A Mixture?
• 2.b What Is A Solution
• 2.c Separation Of Components Of A Mixture
• 2.d Physical And Chemical Changes
• 2.e What Are The Types Of Pure Substances?

Atoms And Molecules

• 3.a Law Of Chemical Combination
• 3.b What Is An Atom?
• 3.c What Is A Molecule?
• 3.d Writing Chemical  Formulae
• 3.e Molecular Mass And Mole Concept

Structure Of The Atom

• 4.A Charged Particles In Matter
• 4.b Structure Of An Atom
• 4.c How Are Electrons Distributed In Different Orbits?
• 4.d Valency
• 4.e Atomic Number And Mass Number
• 4.f Isotopes

The Fundamental Unit Of Life

• 5.a What Are Living Organisms Made Up Of?
• 5.b What Is A Cell Made Up Of? What Is The Structural Organisation Of A Cell?

Tissues

• 6.a Are Plants And Animals Made Of Same Types Of Tissues?
• 6.b Plant Tissues
• 6.c Animal Tissues

Diversity

• 7.a What Is The Basis Of Classification?
• 7.b Classification And Evolution
• 7.c The Hierarchy Of Classification-Groups
• 7.d Plantae
• 7.e Animalia
• 7.f Nomenclature

Motion

• 8.a Describing Motion
• 8.b Measuring Rate Of Motion
• 8.c Rate Of Change Of Velocity
• 8.d Graphical Representation Of Motion
• 8.e Equations Of Motion By Graphical Method
• 8.f Uniform Cercular Motion

Force And Laws Of Motion

• 9.a Balanced And Unbalanced Forces
• 9.b First Law Of Motion
• 9.c Inertia And Mass
• 9.d Second  Law Of Motion
• 9.e Third Law Of Motion
• 9.f Conservation Of Momentum

Gravitation

• 10.a Gravitation
• 10.b Free Fall
• 10.c Mass
• 10.d Weight
• 10.e Thrust And Pressure
• 10.f Archimedes Principle
• 10.g Relative Density

Work And Energy

• 11.a Work

• 11.b Energy
• 11.c Rate Of Doing Work

Sound

• 12.a Applications Of Ultrasound
• 12.b Structure Of Human Ear
• 12.c Production Of Sound
• 12.d Propagation Of Sound
• 12.e Reflection Of Sound
• 12.f Range Of Hearing

Why Do We Fall Ill

• 13.a Health And Its Failure
• 13.b Disease  And Its Causes
• 13.c Infectious Diseases

Natural Resources

• 14.a The Breath Of Life: Air
• 14.b Water: A Wonder Liquid
• 14.c Mineral Riches In The Soil
• 14.d Biogeochemical Cycles
• 14.e Ozone Layer

Improvement In Food Resources

• 15.a Improvement In Crop Yield
• 15.b Animal Husbandry

Laws Of Motion*

• 16.a First Law Of Motion
• 16.b Second Law Of Motion
• 16.c Third Law Of Motion
• 16.d Conservation Of Momentum And Impulse

Floating Bodies*

• 17.a Have A Little Fun
• 17.b Comparing Density
• 17.c Relative Density Of Liquids
• 17.d Upwards Force In Liquids
• 17.e Pressure Of Air
• 17.f Measuring The Force Of Buoyancy
• 17.g Archimedes Principle
• 17.h Pascals Principle

Cell Its Structure And Functions*

• 18.a Typical Cell
• 18.b Cell Wall
• 18.c Cytoplasm
• 18.d Cell Organelles

Animal Tissues*

• 19.a Types Of Cells
• 19.b Story Of Blood
• 19.c Nervous Cells

Movement Of Materials Across The Cell Membrane*

• 20.a Functions Of Plasma Membrane
• 20.b Diffusion

Diversity In Living Organisms*

• 21.a Diversity In Plants
• 21.b Diversity In Animals
• 21.c The Hierarchy Of Classification
• 21.d Classification Of Animals
• 21.e Nomenclature

Sense Organs*

• 22.a What Do Our Sense Do?
• 22.b Simulation To Sensation

Animal Behaviour*

• 23.a Diff Types Of Animal Behaviour
• 23.b Human Behaviour
• 23.c Some Experiments Towards Animal Intelligence

Adaptations*

• 24.a Adaptations In Some More Desert Animals
• 24.b Adaptations In Aquatic Ecosystem, Other Adaptations
• 24.c Lichens

Soil Protection*

• 25.a History Of Soil
• 25.b Pollution Of Soil
• 25.c Protection Of Soil

Bio Geo Chemicals*

• 26.a Water And Nitrogen Cycle
• 26.b Carbon And Oxygen Cycle
• 26.c Ozone Layer