The three states of matter

• There are three states of matter – solid, liquid and gas

• All matter is made up of particles. These particles can be atoms, molecules or ions

• The arrangement of these particles determines the structure and property of each state

• The state of matter depends on how strong the forces of attraction are between the particles of the material

• How strong the forces are depends on three things:

The material

The temperature

The pressure 

• The kinetic theory is used to explain the arrangement and motion of particles in different states of matter

• State symbols are often used in chemical equations 

• (s) for solid

• (l) for liquid

• (g) for gas