Meanings

lead glass

lead-acid battery

drawing or writing in pencil

lead azide

lead chromate (PbCrO4)

wulfenite (PbMoO4)

zinc sulfide (ZnS) (sulphide)

zinc sulfate (ZnSO4) (sulphate)

zinc oxide (ZnO)

white powder (lead carbonate) used in the past as face pigment and used in paint more recently

sketch (done by pencil)

eastern red cedar (Juniperus virginiana)

galena

zinc yeast

vertical circle

lead tree (lead or zinc in a solution of acetate of lead)

zinc selenide

lead dioxide

wulfenite

chrome yellow