Vacuum Pump and Bell Jar Set Geology Specimen Collections_Rock & Mineral Collections Compares radiant-heat absorption through paired

Compares radiant-heat absorption through paired surfaces and a white screen

5 inch specific gravity cylinder with a top hook for spring-scale massing

Sixty-five-atom advanced VSEPR kit at 220 total pieces with multifaceted atoms supporting trigonal

Quality wooden 24-inch demonstration vernier caliper with a sliding arm

4 inches long for chemistry and microbiology classroom stations

Vacuum Pump and Bell Jar Set Geology Specimen Collections_Rock & Mineral Collections Compares radiant-heat absorption through pairedCombined hand vacuum pump and 25cm acrylic bell jar assembly with matched rubber seal, a ready made platform for Magdeburg hemisphere and vacuum boiling demonstrations.