9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models supplying a contrasting reactive-metal electrode

supplying a contrasting reactive-metal electrode pair for Faraday's-laws and ionic-conduction work

Pocket-sized 45mm aluminum compass with a graduated dial

the bench-scale option for younger students or for compact apparatus where a full-size bar would be unwieldy

paired with a 13 mm curved enamel-coated steel blade for portable benchtop and laboratory measurement tasks

9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models supplying a contrasting reactive-metal electrodeNine 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.