Science 30 January 1999 Grade 12 Diploma Examination

. Identify the manipulated and the responding variables in this study...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................c. Interpret the data as represented by the graph. You can do this by summarizing theobservations and giving possible reasons for the results of the experiment. Evaluatethe study by criticizing the design and outlining the methods you would use toimprove it.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................continued31