Three Way Linear Light Source The light source can be adjusted in direction using a screwdriver to precisely target the area for each optical experiment. Optical Experiments Includes hands on activities for refraction of light, convex lens refraction, lens refraction, and refraction exercises. Package Includes Biconvex Lens; Single Concave Lens; Glass Tile; Double Concave Lens; Triangular Prism Learning Value The Physics Optical Experiment set helps your child develop an understanding of physical optics and makes learning easier. Use Scenarios At home study and exploration: conduct guided or independent experiments to observe light behavior, refraction, and lens effects. Classroom demonstrations and tutoring: use the kit to clearly illustrate optical concepts for small groups or one on one lessons. Science fair or project work: design simple experiments to showcase optical principles using the included lenses and prism.