Urinalysis Demonstration Control Fluid, 500mL Included_Stopcock this acrylic rectangular cell lets

this acrylic rectangular cell lets students compare refractive indices across media in ray-box experiments

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

and comparison wires for tensile-elasticity study across different materials

25 inch diameter

Walks students through four-stroke diesel operation on a 16-inch hand-cranked model

Urinalysis Demonstration Control Fluid, 500mL Included_Stopcock this acrylic rectangular cell letsUsed as the negative control reference in urinalysis technique demonstrations, this 500mL bottle of demo control fluid lets students practice pH, color, and albumin testing without real urine.