As one in a series of test items collections developed by the Assessment and Evaluation Unit of the Directorate of Studies, the guide gives a wide range of questions and activities for the manipulation of scientific equipment to allow assessment of students' practical laboratory skills. Instructions are given to make norm-referenced or criterion-referenced tests and to evaluate the results. Sample answer sheets are provided. Test outlines in the guide consist of questions, procedures, equipment lists, special requirements and suggested grading of procedures. Science processes of measurement, drawing, dissection, observation and experimental methodology in adhesion, cells, circulation, color and other areas are outlined. Teachers may alter, modify or delete any test to suit program purposes. (CM)