US$ 89.00
kept on hand so the dome can keep building charge once the original belt wears thin
digestive system
household materials
suiting work with vacuum tubes and eudiometers
Straight-pattern Rotaflow stopcock in borosilicate glass provides precise flow control for burettes and chemistry apparatus assemblies
STEM Investigations Make Your Own Liquid Crystal Thermometer Kit for 8 Groups Length_25mm kept on hand so theSTEM polymer investigation kit teaches material creation through chemical synthesis, property testing, and engineering design challenges.
US$ 89.00
US$ 180.00
US$ 129.50
US$ 174.50
US$ 138.12
US$ 95.00
US$ 89.00
US$ 134.50
US$ 174.50
US$ 239.50