A SERIES OF EXPERIMENTS TO BE PERFORMED WITH SMALL APPARATUS BY STUDENTS IS PRESENTED. PREPARATION OF DATA SHEETS AND ANALYSIS OF FINDINGS ARE ENCOURAGED. IN THE CATEGORY OF MATTER AND MOLECULES, THE CONCEPT TO BE DEVELOPED IS THE DETERMINATION OF WHETHER THERE ARE EMPTY SPACES IN AIR AND IN LIQUIDS. EXPERIMENTS WITH INERTIA, THE LAW OF SPRINGS, DENSITY, COHESION-ADHESION, SURFACE TENSION, CAPILLARY ACTION, VISCOSITY, AND DIFFUSION ARE OUTLINED. TO STUDY BEHAVIOR OF FLUIDS, DIRECTIONS ARE GIVEN FOR EXPERIMENTS ON THE ARCHIMEDES PRINCIPLE, LAW OF FLOTATION, SPECIFIC GRAVITY, AIR PRESSURE, BAROMETER, SIPHON, AND MODEL WATER PUMP. FOR THE STUDY OF THE MECHANICS OF SOLIDS, THE STUDENT IS ENCOURAGED TO GENERATE HIS OWN RESEARCH PROJECTS IN ORDER TO BEST LEARN THE THEORY AND METHOD OF OPERATION. A MINIMUM OF INSTRUCTION SHOULD BE GIVEN BY THE TEACHER FOR THIS UNIT. THE EXPERIMENTS INVOLVE THE "RESOLUTION OF FORCES USING A RESOLUTION OF FORCES BOARD," AND THE MOVEMENTS OF FORCES USING A METER STICK, A PIVOT POINT, THE INCLINED PLANE, SIMPLE AND COMPOUND PULLEYS, FEATHER AND COIN DEMONSTRATIONS, AND THE PENDULUM.