12-Piece Density Metals Variety Set with Assorted Shapes Material_PVC attached to a 10mm diameter

attached to a 10mm diameter 5

each one rotating to follow the local field whenever a magnet is placed beneath the plate or alongside it

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

Dial-selectable multi-tap battery eliminator delivering 1

Miniature desktop torso with 12 removable parts includes a dissectable head and brain for compact classroom anatomy and biology teaching

12-Piece Density Metals Variety Set with Assorted Shapes Material_PVC attached to a 10mm diameterAssorted shape density kit with 12 specimens across brass, iron, aluminum, copper, zinc, and lead, each 12 25g, giving students shape variation on top of the material density comparison.