Harmonic Motion Spring, ideal for demonstrations or hands on experiments in the physics classroom, 7 inches (18 cm) long with a maximum diameter of 1.4 inches (3.5 cm) and a spring constant (k) of 9.6 N/m
Specific Gravity Cylinders With Hooks, Aluminum, copper, stainless steel, tin, and zinc, Each 0.5inch in diameter, for specific heat determinations, Specific metal has been stampled on one end, Hooks can be used to easily measure mass using a spring scale
Equilateral Prisms 3pc set, 1in, 2in, and 4in lengths, Material: Acrylic, Each prism is individually wrapped to protect it Will create a rainbow with any standard light source (phone will work) -- use a dark piece of paper with a 1-2mm slit, Size: 25mm face size
Electrical Whirl, Three-pointed star wheel with all the points curved in one direction mounted on a short stand and the stand is provided with a 4 mm connection socket, Rotates freely on a pivot point mounted on a short stand and the stand, Diameter: 95 mm