Plastic Wave Apparatus for Longitudinal and Transverse Motion Base_Octagonal and phosphorus for organic-chemistry work

and phosphorus for organic-chemistry work

and structural isomerism in introductory chemistry

and gas control on natural gas for high-temperature chemistry heating applications

Aluminum-handled collecting net swings lightweight through tall grass and air sweeps for classroom field trips and introductory entomology sampling work

Plastic Wave Apparatus for Longitudinal and Transverse Motion Base_Octagonal and phosphorus for organic-chemistry workPlastic bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns, exposing the longitudinal and transverse components of wave motion mechanically.