Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
A liquid is much less compressible but cannot put any resistance against a sheer force. You can imagine this as a cylinder of liquid and you grab two points and force them sideways and it moves without any resistive force.
A solid is also not very compressible but if you grab a bar of a solid and try to force each hand in different directions it will not move much.
A plasma is a special state that is so high temperature that the electrons, protons, and neutrons form a gas cloud. This is sort of like a gas but is a very special state that is formed in special circumstances not common in nature.
solid :: ice (molecules r bounded tightly no space to move rigid shape)
liquid:: normal water (molecules r losely bounded they can move no definite shape)
Gas:: water vapours (molecules r place at large distance can move very freely)