Urinalysis Demonstration Control Fluid, 500mL Included_Stopcock Walks students through four-stroke diesel

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

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

25 inch diameter

supporting visible-load demonstrations of current

and comparison wires for tensile-elasticity study across different materials

Urinalysis Demonstration Control Fluid, 500mL Included_Stopcock Walks students through four-stroke dieselUsed 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.