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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 · Chemistry · Acids, bases and equilibrium

  1. Science 7–10 · Year 8

    Blue to white and back: water of crystallisation in copper(II) sulfate

    Heating drives water out of blue copper(II) sulfate crystals, leaving a white solid of lower mass, and adding water turns the powder blue and warm again, so the water was part of the crystals rather than dampness on their surface.

    PracticalMedium risk

  2. Science 7–10 · Years 9–10

    Making a salt: copper(II) sulfate crystals from copper oxide and sulfuric acid

    An insoluble base neutralises an acid to make a soluble salt and water; using an excess of the base and filtering it off gives a pure salt solution from which crystals of the salt can be grown.

    PracticalMedium risk

  3. Science 7–10 · Years 9–10

    Neutralisation: how the pH changes as acid is added to an alkali

    Adding an acid to an alkali neutralises it: the pH falls only slowly at first, then very sharply at the point where the alkali has just been used up, and an indicator shows that point as a sudden colour change.

    Practical, model not builtMedium risk

  4. Science 7–10 · Years 9–10

    Red cabbage indicator: reading acids and bases by colour

    An indicator is a substance whose colour depends on how acidic or basic a solution is, so it turns the invisible property of pH into something a learner can see and rank.

    PracticalLow risk

  5. Science 7–10 · Years 9–10

    Which antacid neutralises the most acid

    A carbonate in an antacid tablet neutralises acid, so the volume of acid a tablet can neutralise before the indicator changes compares how much base different brands contain.

    PracticalLow risk

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