Active Dry Yeast, 500g, Laboratory Grade Base_Hexagonal Unusual double-concave glass disc on

Unusual double-concave glass disc on a 125mm spinning base

Depicts Earth's internal layers plus active and passive margins

Double-convex glass lens at 75mm diameter and 150mm focal length

a smaller-range counting tool for introductory arithmetic and place-value work

accommodating high-flow water lines and vacuum connections in distillation and filtration setups that use larger glass fittings

Active Dry Yeast, 500g, Laboratory Grade Base_Hexagonal Unusual double-concave glass disc onReady to rehydrate and laboratory grade, this active dry yeast provides a living cell culture for fermentation demonstrations, enzyme studies, and cellular respiration work.