Specific Gravity Laboratory Hydrometer with Protective Case Range:1.000-1.500 used to dramatize Lenz's law

used to dramatize Lenz's law as the magnet drops noticeably slower than the non-magnetic mass

this 5g bottle of indigo carmine biostain serves both microscopy and chemistry work

Dry powder makes fifteen liters of Sabouraud-dextrose medium after reconstitution

Needle-valve Rotaflow stopcock delivers stepless drip-rate control during phase separation

and a spout for easy pouring

Specific Gravity Laboratory Hydrometer with Protective Case Range:1.000-1.500 used to dramatize Lenz's lawDual scale specific gravity hydrometer for heavy liquids, marked in both specific gravity and Baum, supplied with a protective case for instrument safety.