Common Core Multiplication Third Grade WorkbookFrom the manufacturer: This common core aligned workbook is a great resource that will reinforce specific skills needed for success in the classroom . Educational development of the key to a childs future academic achievement. By providing supplemental ..
Eisco Labs Center of Mass, Double Cone and Plane Demonstration & Toy - 17" LongThis is a great toy, executive gift, or physics demonstration as the cone appears to be traveling "Up" the ramp. The physics behind the demonstration is that as the double-ended cone moves up the ramp the center of mass i..
Eisco Labs Diffraction Grating Holder for Item PH0619 SpectrometerReplacement Diffraction grating holder for Eisco Labs PH0619 Spectrometer - Made of metal. Two mounting holes are 1.5" apart. - Holes are approx. 0.125" dia. Two 1.25" tall rods are paired up with a spring loaded clip. 1 single holder..