US$ 17.95
Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9-inch frame for organized storage during chemistry and biology experiments
For timing physics
copper-sulfate refining
Spring-loaded 4mm slit on a rod attachment opens and closes smoothly under finger pressure
Demonstration spherometer with an oversized 133 mm dial head and baked enamel finish
6-Pack Polypropylene Graduated Cylinders with Octagonal Base, 250mL Foodsafe Beech wood test tube rackPolypropylene graduated cylinders hold 250mL each in a 6 pack with octagonal anti roll bases for classroom volumetric measurement workflows.
US$ 17.95
US$ 17.95
US$ 102.65
US$ 17.95
US$ 17.95
US$ 120.03