Mineral Identification Testing Kit, 7-Piece Chemicals_Growth Media Compact open-type slide-wire rheostat with

Compact open-type slide-wire rheostat with oxidized constantan winding on an insulated pipe and three 4mm sockets

5 inches tall for fine-grained physics balance and spring-scale investigations at small loads

or even one axis

water vascular system

EDM-80 moving-coil DC voltmeter with a clear acrylic front

Mineral Identification Testing Kit, 7-Piece Chemicals_Growth Media Compact open-type slide-wire rheostat withEXPLORE FIELD TESTING TECHNIQUES A fun way to explore the variety of techniques that geologists use to identify rocks and minerals IDENTIFY ROCKS & MINERALS Test mineral hardness, streak color, magnetic properties, appearance, and effervescence to identify different minerals and mineral content within rock specimens 7 PIECE KIT Includes seven essential tools reusable streak plate, glass plate, dropper bottle, magnet, nail, copper square & retractable