Solid
Arrangement: Particles are close together and regularly packed.
Movement: Particles vibrate around a fixed point.
Energy: Particles have less kinetic energy than both liquids and gasses.
Liquid
Arrangement: Particles are close together but irregular.
Movement: Particles are free to move.
Energy: Particles have less kinetic energy than gasses but more than solids.
Gas
Arrangement: Particles are far apart and there are no forces between them.
Movement: Particles are free to move.
Energy: Particles have more kinetic energy than liquids and solids.
Related Posts:
1.14 understand that force is a vector quantity 
2.02 understand how the use of insulation, double insulation, earthing, fuses and circuit… 2.03 understand why a current in a resistor results in the electral transfer of energy and… 