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

Scoliodon shark model demonstrates cartilaginous fish anatomy

Hand-painted animal cell model on standard base displays organelles

electrophorus

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

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.