Cannabis use highest in Halifax, while Edmonton had highest use of meth, wastewater samples show | CBC News – submitted by Milan Sanader

Statistics Canada tested wastewater samples from five urban centres for illicit drugs and cannabis, and the results are a snapshot of what substances are more common in those Canadian cities.

Source: Cannabis use highest in Halifax, while Edmonton had highest use of meth, wastewater samples show | CBC News

The Leakproof Bag | Experiments | Steve Spangler Science

Who would have ever thought that a plastic bag, some water, and a few pencils would have adults screaming with fear? Learn how to poke holes in a plastic bag filled with water without spilling a drop. Well, that’s the theory you’re going to test… and it’s wise to practice your liquid trick over the sink. It’s a cool way to learn about the chemistry of polymers. Continue reading