Safer Flame Test kit, Identification of Metal Lab, Includes: Boric Acid 10% in Methanol, Sand, Color Flame Candles, Alcohol Burner, Diffraction Slides, Spectroscope, Small Trays, analytical technique used for the identification of certain elements, primarily metal ions
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 250 mm focal length, Lens measures 3in diameter, 0.2 weight