Part 1 Introduction: what experimental science is about; strengths of the method; problems in applying the method; experimental skills; experimental design; collection of data; analysis of data. Part 2 Writing about experiments: report with omissions; complete report. Part 3 Design of experiments: steps along the way; general discussion; good use of time in experiments. Part 3 Design of experiments: steps along the way; general discussion; good use of time in experiments. Part 4 Measuring the experimental variables: characteristics of equipment; units. Part 5 Analysis of data: single experimental variable; two experimental variables; combination of errors; use of random numbers; goodnes of fit. Part 6: Models.