9" High-Speed Low-Friction Spoke Pulley, 2.5" Diameter Subcategory_Gas Washing Bottles Polyhedral 120mL glass alcohol lamp

Polyhedral 120mL glass alcohol lamp ships with a metal cap and fiber wick for low-temperature bench heating in chemistry and biology demonstrations

Liquid propane Bunsen burner provides standard flame heating for chemistry and biology classroom laboratories at the benchtop

the series arrangement amplifying the Seebeck voltage for radiant-heat detection experiments

Larger 32mm iron density cube weighing 252g with an integrated hook extending total height to 1

9" High-Speed Low-Friction Spoke Pulley, 2.5" Diameter Subcategory_Gas Washing Bottles Polyhedral 120mL glass alcohol lampLow friction 9 inch spoke pulley with a 2. 5 inch wheel on free running ball bearings, with the open spoke design optimized for photogate timing of rotational motion experiments.