• Changes in physical state

• Melting and Freezing

• Sublimation

• Evaporation, boiling and condensation

• Pure Substances

• Heating and cooling curves

• Types of mixtures

• Separating insoluble solids from liquids

• Separating immiscible liquids

• Separating mixtures of solids

• Separations based on differences in solubility

• Separating solutions (chromatography)

• Purity and identity of substances

• A closer look at solutions:

- the solubility of solids in liquids

- the solubility of gases in liquids

• Chemical reactions and physical changes

• Kinetic model of matter

• Diffusion in fluids: dissolving

• Diffusion in gases

• Atoms and molecules

• Atomic structure

• Measuring the size of atoms

• Sub-atomic particles

• Proton number and nucleon number

• Isotopes