PBS Kids has strategically associated the computer games they offer on their website with the programming they air on television so that children feel like they are familiar with the characters they are seeing on a regular basis.
Lead sulphide, PbS, occurs in nature as the mineral galena (q.v.), and constitutes the most valuable ore of llead.
GALENA, an important ore of lead, consisting of lead sulphide (PbS).
The formula PbS corresponds with lead 86.6 and sulphur 13.4%.
In the circumstances the four girls were heroic with pbs throughout for Nicola and Gemma and seasons bests for Jessica and Janine.