US$ 12.00
Sized for compact classroom display
Plug-in 120V AC blower sized to feed a linear air track
Low temperature gradient - can withstand high temperatures & thermal shocks
step-up/step-down ratios
letting students trace renewable-energy conversion step by step
B.O.D. Bottle with Stopper, 125mL, Borosilicate Glass Type_Dual End Sized for compact classroom displayB. O. D. bottle in borosilicate glass holds 125mL with glass stopper for biological oxygen demand testing and water quality analysis.
US$ 12.00
US$ 27.99
US$ 17.00
US$ 12.00
US$ 105.00
US$ 115.00
US$ 487.50
US$ 447.50
US$ 990.00