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Around 15% of the total marks across all six Edexcel GCSE Combined Science papers (1SC0) assess your knowledge of practical procedures. You do not sit a separate practical exam, but questions about core practicals appear on the written papers. This lesson covers the key Biology core practicals you must know.
For every core practical, you may be asked about:
Exam Tip: Learn the structure above as a checklist. For any practical, you should be able to talk about method, variables, reliability, validity, errors, results and safety.
To investigate the effect of concentration of sucrose solution on the mass of potato chips (and therefore osmosis).
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