9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models This a 3ft sample pack

This a 3ft sample pack of PH1064C

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

the heaviest specimen in the series at 11

visible crankshaft

exposing the moving parts so students see directly how a DC current drives a rotating magnetic field

9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models This a 3ft sample packNine material 1 inch cube set spanning brass, iron, copper, aluminum, hardwood, softwood, nylon, PVC, and acrylic in a foam lined wooden case for density versus material investigations.