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.
Air , food, water, stones, clouds, stars etc.
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.
Pen, book , thread, brick etc.
Water , oil , juice , cold drink etc.
Air ,Oxygen, Nitrogen, CNG etc.