Optically Worked Double Concave Glass Lens, 75mm Diameter, 200mm Focal Length Face Size_38mm Basic 15-slide set pairs common

Basic 15-slide set pairs common plant and animal tissue preparations for short-unit microscopy coursework in middle school and early high school

and packaged as a single optics kit

equipping a class for fixed-and-movable pulley investigations

and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities

open at one end for mercury barometer construction and atmospheric pressure demonstrations

Optically Worked Double Concave Glass Lens, 75mm Diameter, 200mm Focal Length Face Size_38mm Basic 15-slide set pairs commonPairs 75mm of aperture with a 200mm diverging focal length on a double concave glass lens, the gentler curvature softening divergence for clearer virtual image observation in refraction setups.