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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.

4 practicals

Earth and Environmental Science 11–12 · Environment and sustainability · Soil

  1. Earth and Environmental Science 11–12 · Year 11

    Effect of salinity on seed germination and seedling growth

    Dissolved salt lowers the water potential of soil water, so germination and growth fall as salinity rises, the mechanism behind lost production on salinised land.

    PracticalLow risk

  2. Earth and Environmental Science 11–12 · Year 11

    Soil components by the jar settling test, the ribbon test and Stokes’ law

    A soil is a mixture of sand, silt, clay and organic matter whose grain sizes settle at rates set by Stokes’ law, so a shaken jar sorts the soil for you.

    Practical, model not builtLow risk

  3. Earth and Environmental Science 11–12 · Year 11

    Soil erosion prevention: bare, mulched and planted trays under a measured rainfall (syllabus practical)

    Cover protects soil from raindrop impact and slows runoff, so the same rain on a covered tray moves far less sediment than on bare ground.

    PracticalLow risk

  4. Earth and Environmental Science 11–12 · Year 11

    Soil pH and organic content by loss on ignition

    Soil forms from rock, air, water and living things together; its pH and organic fraction are measurable records of the biotic and chemical part of that formation.

    PracticalMedium risk

For tutors and administrators

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