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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.

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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.

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A practical is carried out at the bench, in the classroom or outdoors. A practical with its model not built stands on its own; the page says where a step mentions the model. A calculation and data practical works from published figures by hand, with a calculator or in a spreadsheet. No Lab page includes an interactive model; the Concept Studio holds the demonstrations.

5 practicals

Science 7–10 · Biology · Body systems

  1. Science 7–10 · Year 8

    Sheep heart dissection: chambers, valves and the thickness of the walls

    The structure of each part of the heart matches its job: the left ventricle wall is thickest because it pumps blood to the whole body, and one-way valves keep the flow in one direction.

    PracticalMedium risk

  2. Science 7–10 · Year 9

    Involuntary responses: the knee-jerk reflex and the pupil reflex

    Some responses bypass conscious control: the knee-jerk kick follows the tap too fast to feel as a delay because the pathway runs through the spinal cord, and the iris adjusts the pupil to light without any decision being made.

    PracticalLow risk

  3. Science 7–10 · Year 9

    Pulse and breathing rate before and after exercise: body systems responding together

    When muscles work harder, the nervous system raises heart rate and breathing rate together, so the circulatory and respiratory systems deliver more oxygen and carry away the extra carbon dioxide the muscles produce; when exercise stops, both rates fall back toward resting over several minutes.

    PracticalLow risk

  4. Science 7–10 · Year 9

    Reaction time by the ruler drop: from catch distance to milliseconds

    A response to a stimulus takes measurable time because the signal must travel from receptor to brain to muscle, and that time can be calculated from how far a ruler falls before it is caught.

    Practical, model not builtLow risk

  5. Science 7–10 · Year 9

    Two-point discrimination: mapping touch receptor density on the skin

    Skin that carries more touch receptors per square centimetre can tell two nearby points apart, so the smallest gap felt as two points measures receptor density.

    PracticalLow risk

For tutors and administrators

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