Lower secondary
Lower secondary school (grades 6–9): atoms, substances, reactions and everyday chemistry.
Next level: Upper secondary
General chemistry (7)
- Matter, atoms, molecules, chemical elementsGrade 8Sep 30, 2026
- Chemical reactions and how to recognise themGrade 8Sep 30, 2026
- Oxides, acids, bases, saltsGrade 9Sep 30, 2026
- Subatomic particles, isotopes, atomic number, mass numberGrade 8Sep 30, 2026
- Mole, molar mass, solution concentrationGrade 8Sep 30, 2026
- Balancing equations, reaction yieldGrade 8Sep 30, 2026
- Conservation of mass, stoichiometric ratiosGrade 8Sep 30, 2026