Year 9 chemistry
Topics are arranged by the term they are taught. Pick the one you are doing in class: each has a lesson video, worked questions and practice at three levels.
Autumn term
- ChemistryFundamental ideasAtoms, elements, compounds, molecules and mixtures, symbols and simple formulae, and separating mixtures by filtration, crystallisation, distillation and chromatography.100 questionsLesson video
- ChemistryCrude oil and fuelsCrude oil, hydrocarbons and the alkanes, fractional distillation, properties of fractions, combustion, cracking and alkenes.100 questionsLesson video
- ChemistryThe atmosphereHow the atmosphere formed and changed, its composition today, the greenhouse effect, climate change, carbon footprints and atmospheric pollutants.100 questionsLesson video
- ChemistryEarth’s resourcesFinite and renewable resources, drinking water and waste water treatment, life-cycle assessments, recycling, rusting, alloys, ceramics, composites and polymers.100 questionsLesson video
Spring term
- ChemistryBonding and formulaeAtomic structure and electron shells, ions, ionic, covalent and metallic bonding, writing ionic formulae and balancing equations.100 questionsLesson video
- ChemistryReactivity of metalsThe reactivity series, reactions with water and acids, displacement, oxidation and reduction, and extracting metals from their ores.100 questionsLesson video
- ChemistryReactions of acidsThe pH scale, neutralisation, acids with metals, bases and carbonates, making soluble salts, balanced symbol equations, and strong and weak acids.100 questionsLesson video