Boyle's Law Glass Tubes, Open and Closed, 2-Piece Entomology & Zoology_Zoology Charts & Models Element-stamped 20mm solid brass cube

Element-stamped 20mm solid brass cube for density investigation

supplying two voltmeter scales on one accessory so students switch between low and mid-cell voltages without rewiring

this set covers the mid-range bench volumes with raised graduations and tapered pouring spouts

Brass eight-piece slotted mass set totaling 1100 grams from 10 to 500 gram pieces

and redistribution during cell division for biology instruction

Boyle's Law Glass Tubes, Open and Closed, 2-Piece Entomology & Zoology_Zoology Charts & Models Element-stamped 20mm solid brass cubeTwo piece Boyle's Law glass tube set with one open and one closed tube, sized for demonstrating the inverse pressure volume relationship of a gas at constant temperature.