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Matter

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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Matter

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  1. Matter

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. Pictures Comparing Three States of Matter SOLID LIQUID GAS

  9. 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

  10. INTERCONVERSION OF THREE STATES OF MATTER Liquids FUSION SOLIDIFICATION CONDENSATION VAPOURISATION Gases Solids SUBLIMAION

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