Open Top Cylindrical Dropping Funnel with Glass Key Stopcock, 250mL, Ungraduated, Borosilicate Glass Chemical_Fine White Sand and lead threading onto string

and lead threading onto string or rod for mass-dependent pendulum period comparisons

the smaller and larger units letting students compare scale-dependent total internal reflection behavior

adding bench visibility while preserving standard burner performance

Biodiesel production kit demonstrates green chemistry through transesterification reactions

offering flexible positioning during force

Open Top Cylindrical Dropping Funnel with Glass Key Stopcock, 250mL, Ungraduated, Borosilicate Glass Chemical_Fine White Sand and lead threading onto stringOpen top cylindrical dropping funnel in borosilicate glass holds 250mL with glass key stopcock for controlled liquid addition procedures.