Simple Machines Simple Lever Model Subcategory_Spectroscopy Wooden fulcrum-balance simple-machine model with

Wooden fulcrum-balance simple-machine model with a sliding pivot

75 inches tall with visible crankshaft

Pack of 12 low-form Griffin beakers in borosilicate 3

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

letting students directly observe pressure-volume changes under stacked weights

Simple Machines Simple Lever Model Subcategory_Spectroscopy Wooden fulcrum-balance simple-machine model withSeventeen and a half inch wooden simple lever apparatus with an adjustable fulcrum on an 8. 625x2. 25 inch base, supporting both qualitative and quantitative force vs distance student investigations.