Borosilicate Glass Venturi Tube, 7.75 x 6.5" Gifts_Kids Ninety-five-piece molecular model set with

Ninety-five-piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry

Hand-painted dicot root transverse section model exposes epidermis

transmitting maximum light when their axes align and nearly extinguishing it when crossed at 90 degrees

Hand-crank centrifuge spins four 15mL tubes for teaching sedimentation

Borosilicate Glass Venturi Tube, 7.75 x 6.5" Gifts_Kids Ninety-five-piece molecular model set withBorosilicate glass Venturi tube at 7. 75 inches end to end with three J shaped side ports visualizing pressure drops at the constriction, demonstrating Bernoulli's principle quantitatively.