Lab
See the idea. Put it to the test.
956 practicals from Kindergarten to Year 12, in 9 subjects. A practical gives the idea, what you need, the steps, what you should see and a safety card. A teacher-led practical gives the idea and its hazards; its method is for tutors on the learning platform.
Review
Reviewed before publication (owner’s confirmation, 24 September 2026). That covers every practical here, and a practical’s page lists the sources its author read.
A safety card on every page
The risk, who supervises and the hazards. The 38 teacher-led practicals show their idea and hazards here; their materials, steps and sources, and any result, control or note that states a number or an amount, are for tutors and administrators on the learning platform.
School laboratory, not for home
207 practicals are medium or high risk. Each says so on its page: In a school laboratory, with a teacher supervising, under the school's risk assessment. Not for home.
Curriculum references
Each practical lists the NSW syllabus outcomes and Australian Curriculum v9 codes it supports. They are references, not a verified or complete curriculum alignment.
Find a practical
7 practicals
Chemistry 11–12 · Chemistry · Mixtures and solutions
Separating a sand, salt and water mixture and finding its percentage composition
A heterogeneous mixture is separated by physical properties (particle size, solubility, boiling point) and the recovered masses give the percentage composition by mass.
PracticalLow riskSimple distillation of salt water: boiling-point plateau and purity of the distillate
A homogeneous mixture is separated by boiling point: the thermometer reads a plateau at the boiling point of the volatile component while the dissolved solid stays behind.
PracticalMedium riskGravimetric analysis of the sulfate content of a lawn fertiliser or water sample as barium sulfate
Precipitating an ion completely as an insoluble compound of known formula, then drying and weighing it, gives the ion's mass in the original sample.
Practical, model not builtMedium riskIdentifying anions in solution: the eight syllabus anions by acid, silver, barium and iron(III) tests
Anions are identified by which cation precipitates them, the colour of the precipitate and whether it dissolves in acid or ammonia, with gas tests for carbonate and hydroxide.
PracticalMedium riskIdentifying the eight cations of the 2017 syllabus by flame and precipitation tests
Each cation gives a fixed pattern of flame colour, precipitate colour and solubility in excess reagent, so a short sequence of tests identifies which of the eight is present.
PracticalMedium riskPrecipitation titration of chloride in seawater with silver nitrate and a chromate indicator (Mohr method)
Silver ions precipitate chloride quantitatively, and the first excess of silver forms red-brown silver chromate, marking the end point so the chloride concentration can be found by titration.
Practical, model not builtMedium riskSolubility rules from mixing ionic solutions, and predicting precipitates from Ksp
Whether two ionic solutions give a precipitate follows a small set of solubility patterns, and quantitatively from comparing the ion product with the solubility product.
Practical, model not builtMedium risk
For tutors and administrators
The materials and steps of every teacher-led practical are on the learning platform, with the safety card first. Sign in with a tutor or administrator account to read them.