Eudiometer, Demonstrate the combining volume ratios of gases, Platinum electrodes included, Long, sturdy glass tubes have platinum electrodes sealed at the closed end with a 2 mm arc gap, Tubes are marked with a permanent brown scale in 0.1 or 0.2 mL divisions, Size: 100ml
Density Set - Aluminium, Set of 12 aluminium cylindrical bars of different length but the same diameter. Students learn that the density of a substance is constanteven as its mass and volume change. Comes in an attractive wooden holder