Chapter 01 – The Matter in Our Surroundings

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Characteristics of Particles of Matter

Extremely Small (Have Inter-particle Spaces), Inter-particle force of Attraction (Cohesive and Adhesive Forces), Continuously Moving (Diffusion)

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.


This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Physical Characteristics of Matter - Solid State

Properties of Solids - Strongest Interparticle Force of Attraction, Compact Packing, Least Interparticle Distances, Rigid, Incompressible, Highest Density and do not Flow

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.


This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Physical Characteristics of Matter - Liquid State

Properties of Liquids - Definite Volume, Indefinite Shape, Weaker Interparticle Force of Attraction, Larger Interparticle Distances, Slightly Compressible, Tendency of Flow

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.


This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Physical Characteristics of Matter - Gaseous State

Properties of Gases - Neither Definite Shape nor Volume, Weakest interparticle force of attraction, Largest interparticle distances, Least Density, Highly Compressible, Fastest rate of Diffusion, Exert pressure

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.


This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Inter-conversion of States of Matter - By Changing the Temperature Part-1

Fusion or Melting, Melting Point, Latent Heat of Fusion, Sublimation

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.

This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316

Class IX - Chemistry
Chapter 1 - The Matter in Our Surroundings (English Medium)
Inter-conversion of States of Matter - By Changing the Temperature Part-2

Evaporation and Vaporisation, Boiling in Terms of Vapour Pressure, Boiling Point, Latent Heat of Vaporisation, Relationship between Centigrade Temperature and Kelvin Temperature

Important Note: All video lessons are systematically indexed on the website: www.gianmandir.com wherein one can register oneself.

This Channel initiated by Dr. D. R. Vij (former Professor of Physics, Kurukshetra University, India) primarily aims at taking free education to the doorsteps of learners who for various economic and social factors can not avail benefits of regular coaching.

In view of the congested classrooms coupled with hefty tuition fee, social taboos and hazards of travelling (for girls in particular) this mode of extending education had become a necessity.

This self-learning approach is a definite step towards democratisation of education i.e. taking education even to individuals who staying in remote and far off areas were being deprived of education for no fault of theirs.

Viewers are requested to click LIKE button if they like a video and SUBSCRIBE to this channel to get notifications of more video lessons being uploaded from time to time in future. They are also requested to SHARE videos with nears and dears who can be benefitted.

With thanks
Dr. D. R. Vij
Professor of Physics (Retd.)
(Mob) +919416220316