US$ 144.27
the workhorse mid-range value used most often for LED current-limiting and Ohm's-law student investigations
and specific gravity work
Built for medical training
1M NaOH (25
the slender triangular bodies sized for paired light-bending demos where two refraction angles need to be compared simultaneously
No. 1 Chromatography Filter Paper, 100-Pack Chemical_Methylene Chloride the workhorse mid-range value usedSeparates dissolved dyes and biological pigments by capillary flow for paper chromatography demonstrations and filter paper art in teaching chemistry.
US$ 144.27
US$ 26.75
US$ 376.01
US$ 281.95
US$ 145.00
US$ 83.51
US$ 132.25