5-Metal Hooked Density Cylinders Set (Copper, Tin, Aluminum, Zinc, Stainless Steel) Capacity_17mL 5 inch specific gravity cylinder

5 inch specific gravity cylinder with a top hook for density and specific-heat work

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

Built for cell-structure comparison

illustrating late-pregnancy presentation for obstetric and reproductive anatomy teaching

5-Metal Hooked Density Cylinders Set (Copper, Tin, Aluminum, Zinc, Stainless Steel) Capacity_17mL 5 inch specific gravity cylinderFive cylinder equal mass set with hooks in copper, tin, aluminum, zinc, and stainless steel, each 30g with lengths varying by density for water displacement and calorimetry work.