Particles and Separation

States of Matter

• There are three states of matter - solid liquid and gas.
• All materials are made up of particles
• State depens on how strong the particles stick together (attraction)
• This depends on the material, temperature and pressure

Particle Theory

Particles in a Solid:

• strong forces of attraction between particles
• particles held closely in fixed positions in regular arrangement
• particles vibrate
• particles don't move - definite shape and volume
• not easily compressed
• usually dense

Particles in a Liquid:

• some forces of attraction between particles
• particles can move past each other but stick together
• doesn't have a definite shape
• keep the same volume
• not easily compressed
• quite dense

Particles in a…