Class B Borosilicate Glass Graduated Cylinder with Protective Collar, White Graduations Capacity:500mL this two-coil demonstration transformer lets

this two-coil demonstration transformer lets students swap primary and secondary windings to watch step-up and step-down voltage shifts firsthand

giving students shape variation on top of the material-density comparison

supplying replacement bulbs for four-cell battery packs and the standard 6V ray-box and panel-lamp apparatus

USB-connected pH logging kit bundling the pH sensor with a USB adapter for real-time acid-base data capture on PC or Mac systems during chemistry and biology coursework

3 glass beakers with spouts and white graduations

Class B Borosilicate Glass Graduated Cylinder with Protective Collar, White Graduations Capacity:500mL this two-coil demonstration transformer letsPolymer collar protects the neck during tipping or swinging, with high contrast white graduations for reading against darker solutions during routine ASTM compliant measurement.