Electrostatic Friction Rod Kit, includes: -3 fabric cloths (wool, cotton, silk) -3 rods (glass, ebonite, lucite), provides the necessary tools to free both positive and negative charges for exploration into electrostatic forces, 0.4 lbs, 9.8x6.0x1.8in
Bimetallic Strip Demonstration, Single Piece Non-Jointed Bimetallic Strip Of With Wooden Handle, The Metals Are Distinct And Visible. An Improved Version Of The Rivetted Form. Metals Are Copper And Steel.
Lead-Free Clylinder Set. 5 Cylinders, 0.5Inch Diameter. Aluminum, Copper, Tin, Zinc, Brass, Help Beginning Students Conceptually Understand Density, 3 3 The Density Of These Metals Ranges From 2.7 G/Cm To 8.8 G/Cm Giving Students A Wide Range Of Different Values To Study