US$ 14.00
Stand-mounted lift pump illustrating how atmospheric pressure lifts water through a valve-and-piston mechanism
Adjustable hardwood ramp track with a 30 by 120cm running surface and a run-off section
Non Regulated
gear train
Phosphate-spiked 500mL of urinalysis demonstration fluid
Fine White Marble Specimen Pack Size:Pack of 12 Stand-mounted lift pump illustrating howSmall tightly interlocked calcite crystals produce fine marble's sugary texture, suited for sculpture and illustrating recrystallization of limestone protolith.
US$ 14.00
US$ 125.00
US$ 140.00
US$ 55.00