Frosted Glass Gas Jar Cover, 2 inch, 1.7mm Thick Subcategory_Boiling Flasks Variable slit width on this

Variable slit width on this optical-bench attachment lets students vary the aperture of the source for diffraction

and small motor circuits without bare-terminal hazards

and mixed autotrophic-heterotrophic characteristics for protist biology teaching

three-screw prism table

a 2 by 2 by 2-inch hollow glass cube prism with stopper holds generous liquid volumes for refraction-index investigations across media

Frosted Glass Gas Jar Cover, 2 inch, 1.7mm Thick Subcategory_Boiling Flasks Variable slit width on thisFrosted glass gas jar cover measures 2 inches with 1. 7mm thickness for sealing gas jars during collection and demonstration procedures.