A1 Practical skills checklist

Using techniques, apparatus and materials

Identify apparatus from diagrams or descriptions.
Draw, complete or label diagrams of apparatus.
Use, or explain the use of, common techniques, apparatus and materials.
Select the most appropriate apparatus or method for the task and justify the choice made.
Describe and explain hazards and identify safety precautions.
Describe and explain techniques used to ensure the accuracy of observations and data.

Identify the independent variable and dependent variable.
Describe how and explain why variables should be controlled.
Suggest an appropriate number and range of values for the independent variable.
Suggest the most appropriate apparatus or technique and justify the choice made.
Describe experimental procedures.
Identify risks and suggest appropriate safety precautions.
Describe how to record the results of an experiment.
Describe how to process the results of an experiment to form a conclusion or to evaluate a prediction.
Make reasoned predictions of expected results.

Take readings from apparatus (analogue and digital) or from diagrams of apparatus.
Take readings with appropriate precision, reading to the nearest half-scale division where required.
Correct for zero errors where required.
Make observations, measurements or estimates that are in agreement with expected results or values.
Take sufficient observations or measurements to be reliable.
Repeat observations or measurements where appropriate.
Record qualitative observations from tests.
Record observations and measurements systematically, for example in a suitable table, to an appropriate degree of precision and using appropriate units.

Process data, including for use in further calculations or for graph plotting, using a calculator as appropriate.
Present data graphically, including the use of best-fit lines where appropriate.
Analyse and interpret observations and data, including data presented graphically.
Use interpolation and extrapolation graphically to determine a gradient or intercept.
Form conclusions justified by reference to observations and data and with appropriate explanation.
Evaluate the quality of observations and data, identifying any anomalous results and taking appropriate action.
Comment on and explain whether results are equal within the limits of experimental accuracy (assumed to be ± 10% at this level of study).

Evaluate experimental arrangements, methods and techniques, including the control of variables.
Identify sources of error, including measurement error, random error and systematic error.
Identify possible causes of uncertainty in data or in a conclusion.
Suggest possible improvements to the apparatus, experimental arrangements, methods or techniques.