Practical skills, planning, measurement, evaluation and exam strategy

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By the end you’ll be able to

plan an investigation by stating the aim, identifying independent, dependent and control variables, and selecting a valid method with appropriate apparatus
select and use suitable apparatus for measuring mass, volume, temperature, time and gas volume or gas production, considering precision, resolution and range

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record observations and measurements appropriately, present data in suitable tables, and process results by calculating means, rates, concentrations or other derived quantities

interpret data using graphs and lines of best fit, identify patterns and anomalies, and draw conclusions that are consistent with the evidence

evaluate an experimental method by identifying sources of error, distinguishing random and systematic error, assessing accuracy, precision and repeatability, and suggesting realistic improvements

apply laboratory safety principles, including risk assessment, hazard awareness, safe handling of chemicals and use of control measures, and communicate answers in the clear stepwise style rewarded in exams

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