Chemistry · C1
Particles and their behaviour
Everything around you — this page, the air in your lungs, the water in a glass — is built from particles far too small to see. This unit builds that idea, then pushes it until it nearly breaks.
- 1The particle modelModel
- 2Solids, liquids and gasesContrast
- 3Changes of stateProcess
- 4Gas pressureModel
- 5DiffusionModel
- 6Testing the model: does it explain everything?Investigation