Chemistry is the study of matter and the changes it undergoes, with the atom being its basic functional unit.
Concept: Understanding Matter4m
Matter is anything that takes up space and has mass.
Concept: Classifications of Matter3m
Under appropriate conditions of pressure and temperature, most substances can exist in 3 states of matter.
Concept: Volume, compressibility and viscosity of phases of matter6m
The closeness of molecules within the three phases of matter affects how they respond to changes in volume, pressure and temperature.