Lesson 1, Topic 1
In Progress
The three states of matter
Lesson Progress
0% Complete
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
State symbols are often used in chemical equations
(s) for solid
(l) for liquid
(g) for gas