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
9 practicals
Science 7–10 · Biology · Plants and energy
Algal balls and hydrogencarbonate indicator: photosynthesis and respiration in one tube
Photosynthesis removes carbon dioxide from water and respiration adds it, and an indicator that tracks carbon dioxide shows which process dominates under each light condition.
PracticalLow riskLeaf surface temperature: transpiration as evaporative cooling
Evaporation removes heat from the surface it leaves, so a transpiring leaf runs cooler than one whose stomata are sealed, the same physics that makes sweating cool skin.
PracticalLow riskPondweed and light: oxygen bubbles against lamp distance
Photosynthesis in the chloroplasts of a water plant releases oxygen, and the rate of release falls as the lamp moves further away and less light reaches the plant.
Practical, model not builtLow riskStomatal density: counting pores on the two faces of a leaf
Stomata are the pores through which a leaf exchanges gases and loses water, and their number per square millimetre can be measured from an impression and a calibrated field of view.
Practical, model not builtLow riskTesting a variegated leaf for starch: where photosynthesis happens
Starch is made only in the parts of a leaf that hold chloroplasts and have had light, so the iodine test maps where photosynthesis occurred.
PracticalMedium riskTranspiration with a straw potometer: water uptake against air movement
Water that evaporates from a shoot is replaced by water drawn up the stem, so the rise of the lower end of the water column in a narrow straw measures how fast the shoot takes up water, which closely tracks transpiration.
PracticalLow riskWater transport in celery: dye rising through the xylem
Water travels up a celery stalk through xylem vessels, and the rate depends on how fast the leaves lose water.
PracticalLow riskFlower dissection: male and female parts and the ovules inside
A flower is a reproductive organ whose parts are arranged for pollen transfer and fertilisation, and its structure can be read from the outside in.
PracticalLow riskPollen tube growth on a slide: watching the step before fertilisation
A pollen grain grows a tube toward the ovule when it lands on a suitable surface, and that growth can be watched and measured on a slide within a double lesson.
PracticalLow 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.