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
10 practicals
Science 7–10 · Biology · Genetics and evolution
Asexual reproduction by cuttings: rooting success as an investigation
A piece of a plant can grow into a complete, genetically identical plant, and the conditions that favour rooting can be tested with a controlled comparison.
PracticalLow riskCauliflower cloning: tissue culture under aseptic conditions
A tiny piece of plant tissue on a sterile nutrient medium can regenerate a whole plant, because its cells keep the full set of instructions; micropropagation, the technology built on this, is used by the Royal Botanic Gardens, Kew to clone endangered plants and in commercial crop propagation.
PracticalMedium riskBeaks as tools: selective advantage in a changing environment
Small differences in a structure change how much food an individual can gather, and when food changes the trait that gathers more becomes more common in later generations.
Practical, model not builtLow riskChicken wing dissection: homologous bones in a wing and a human arm
A bird wing and a human arm are built on the same pattern of one bone, then two bones, then a group of small bones, although they do different jobs, which is anatomical evidence that tetrapods share a common ancestor.
PracticalMedium riskCoin-toss crosses: why a 3 to 1 ratio only appears in large numbers
Each parent passes one of two alleles at random, so a monohybrid cross between heterozygotes gives a 3 to 1 phenotype ratio on average but not in every small family.
Practical, model not builtLow riskExtracting DNA from a banana or an onion
DNA is a physical substance present in every cell, and it can be released by breaking membranes and made visible by precipitating it in cold alcohol.
PracticalLow riskModelling meiosis with model chromosomes: independent assortment and gamete variety
Meiosis halves the chromosome number and, because each homologous pair lines up independently of the others, one parent can make 2 to the power n different gametes from n chromosome pairs before crossing over is counted.
Practical, model not builtLow riskRoot tip squash: seeing mitosis and counting a mitotic index
New cells arise by mitosis in growing regions, and the fraction of cells caught dividing at any moment can be counted from a stained squash.
PracticalMedium riskSooty selection: camouflage, predation and allele frequencies over generations
Predators remove the individuals they can see, so the colour that matches the background rises in frequency generation by generation, and the direction reverses when the background changes.
Practical, model not builtLow riskVariation in the class: continuous measurements and the myth of single-gene traits
Most human traits vary continuously and depend on many genes and the environment, so class data for tongue rolling or earlobe shape do not fit a single dominant and recessive allele.
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.