Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories the deeper body extending the

the deeper body extending the visible refraction path for ray-box and Snell's law refraction studies

Wood-based friction board apparatus with a 19-inch metal surface plus two hooked friction sliders with different top materials for comparative sliding-friction investigations

Economy Hope's apparatus demonstrating the anomalous expansion of water near 4°C as thermometers at different heights register densest water sinking while colder water rises

Greatly magnified Paramecium model reveals cilia arrangement

Pack of low-form borosilicate 3

Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories the deeper body extending theClass B burette in borosilicate 3. 3 glass holds 100mL with 0. 2mL graduations and glass key stopcock for titration and volumetric analysis.