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AQA GCSE Combined Science: Trilogy required practicals

The required practicals you can be asked about in the exam. Each sheet has the method, variables, risk assessment and a results table to fill in, with example results and exam questions, and prints as a PDF. Questions on practicals are worth at least 15% of the marks.

1Using a light microscopeCell biology · Cell structure · spec 4.1.1.2 PDF8 pagesRevision noteOpen sheet
2Osmosis in potato cylindersCell biology · Transport in cells · spec 4.1.3.2 PDF9 pagesRevision noteOpen sheet
3Food testsOrganisation · Animal tissues, organs and organ systems · spec 4.2.2.1 PDF8 pagesRevision noteOpen sheet
4The effect of pH on amylaseOrganisation · Animal tissues, organs and organ systems · spec 4.2.2.1 PDF8 pagesRevision noteOpen sheet
5Light intensity and the rate of photosynthesisBioenergetics · Photosynthesis · spec 4.4.1.2 PDF9 pagesRevision noteOpen sheet
6Reaction timeHomeostasis and response · The human nervous system · spec 4.5.2.1 PDF8 pagesRevision noteOpen sheet
7Field investigations: quadrats and transectsEcology · Organisation of an ecosystem · spec 4.7.2.1 PDF10 pagesRevision noteOpen sheet