Pocket Reference Natural Gemstone Card with 12 Identified Specimens, 1cm Each Lab Equipment_Water Baths providing a measurable projection surface

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

Conical centrifuge tube in borosilicate 3

this phenylthiourea taste-testing set demonstrates the genetic basis of bitter-flavor perception in biology classrooms

Long-stem receiver delivery adapter in borosilicate glass features 14/23 socket for distillation collection and extended chemistry apparatus assembly

Pocket Reference Natural Gemstone Card with 12 Identified Specimens, 1cm Each Lab Equipment_Water Baths providing a measurable projection surfaceTwelve 1cm identified gemstone specimens mount on a pocket reference card for on the go gemology identification practice in classrooms or field trips.