Polyurethane Foam kit, to explain how when two viscous liquids are mixed together, they initiate a reaction producing a light weight polyurethane foam, Includes: 1 x 500ml Polyurethane Foam System, Part A (Mixture), 1 x 500ml Polyurethane Foam System, Part B (Mixture)
Basic circuit kit, with a switch, (2) 'C' Batteries with Holders, (2) Light Holders, (5) Bulbs, and bulk wire for connecting, for a classroom or home experiment. One kit works well for a group of 3-5 students and demonstrates the pricinples of circuits and electricity
LED grow light, 24inch, high performance strip, perfect for a wide variety of plants, Sleek, rugged aluminum housing provides cooling-technology that eliminates unwanted heat, Light Output: 2,640 lumens, Power Consumption: 24W, Number of LED Diodes: 48, Color Temp: 6400K
Rectangular Refraction Cell, Material: acrylic rectangular, Color: clear, excellent for showing refraction and internal reflection in water, and to measure its refractive index, has uniform wall thickness to eliminate distortions, Dimension: 6X3X6.2 CM