7-Metal Density Cubes Set with Hooks, 20mm Diameter_10mm U-magnet and brass-rail apparatus that

U-magnet and brass-rail apparatus that demonstrates the motor effect

Sedimentary

the slightly wider apex stepping deviation up from the 5° wedge while keeping the thin-prism form factor

collecting water displaced by a submerged object for volume calculation in Archimedes-principle demonstrations

sized for higher-current branched bench wiring than 2mm leads can carry

7-Metal Density Cubes Set with Hooks, 20mm Diameter_10mm U-magnet and brass-rail apparatus thatSeven metal 20mm density cube set with hooks and element stamps brass, lead, zinc, copper, aluminum, iron, and tin housed in a snap top case for comparative density measurement.