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
2 practicals
Science 7–10 · Earth and space · The universe
Spectral fingerprints: hydrogen lines through a diffraction grating, and redshift
Each element gives out and absorbs light only at its own set of wavelengths, so the lines in a galaxy's light identify its elements, and the same pattern shifted to longer wavelengths measures how fast the galaxy is moving away.
Teacher-led practicalPractical, model not builtMedium riskThe expanding balloon: Hubble's law from dots on a surface
If space itself stretches, every galaxy sees every other moving away at a speed in proportion to its distance, with no centre to the expansion, which is the pattern Hubble found and the big bang model explains.
Practical, model not builtLow 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.