Matter
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Matter. Contents:-. What is matter ? Size of the particles of matter. Characteristics of particles of matter. States of matter. Solids. Liquids. Gases. Pictures comparing three states of matter. Effect of change of temperature. Interconversion of three states of matter. WHAT IS MATTER.

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Contents
Contents:-

  • What is matter ?

  • Size of the particles of matter.

  • Characteristics of particles of matter.

  • States of matter.

  • Solids.

  • Liquids.

  • Gases.

  • Pictures comparing three states of matter.

  • Effect of change of temperature.

  • Interconversion of three states of matter.


What is matter
WHAT IS MATTER

  • Everything in this universe is made up of material which scientists have named “matter”.

  • Matter is made up of particles.

    EXAMPLES:

    Air , food, water, stones, clouds, stars etc.


Characteristics of particles of matter
CHARACTERISTICS OF PARTICLES OF MATTER

  • Particles of matter have space between them.

  • The particles of matter are very small- they are small beyond our imagination !!!!

  • Particles of matter attract each other.

  • Particles of matter move continuously.


Solids
SOLIDS :-

Have a definite shape.

Have distinct boundaries.

Have fixed volume.

Have negligible compressibility.

Have a tendency to maintain their shape when subjected to outside force.

Examples

Pen, book , thread, brick etc.


Liquids
LIQUIDS:-

  • Have no fixed shape.

  • Have fixed volume.

  • Take up the shape of container in which they are kept.

  • Flow and change shape so they are called fluid.

Examples

Water , oil , juice , cold drink etc.


Gases
GASES:-

  • Have no fixed shape and volume.

  • Are highly compressible.

  • Have large space between particles.

  • Particles of gases move randomly at high speed.

Examples

Air ,Oxygen, Nitrogen, CNG etc.



Effect of change of temperature
EFFECT OF CHANGE OF TEMPERATURE

  • Melting : Solid -> Liquid

  • Vaporisation : Liquid -> Gas

  • Condensation : Gas -> Liquid

  • Freezing : Liquid -> Solid

  • Sublimation : Solid -> Gas

Heat

Heat

Solid State

Liquid State

Gaseous State

Cool

Cool


Interconversion of three states of matter
INTERCONVERSION OF THREE STATES OF MATTER

Liquids

FUSION

SOLIDIFICATION

CONDENSATION

VAPOURISATION

Gases

Solids

SUBLIMAION


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