Polar water molecules are attracted to both charged rods. The 4 thumbnail images summarize the content of the video. Click an image to see the image gallery.
Liquid is contained in a burette and allowed to flow down into a beaker in a thin stream. When the bakelite rod is rubbed with fur and brought near the stream of liquid the stream is attracted toward the rod and deflected from its straight downward path. The same thing happens when a glass rod rubbed with silk is brought near the stream of liquid; the stream of liquid is deflected toward the rod.
A stream of distilled water is attracted to either rod. Polar water molecules stabilize the charge induced on the stream of liquid, and cause the stream to be attracted to the rod.
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ChemPRIME project is a full general chemistry textbook available online through the ChemEd DL. We seek collaborators to add exemplars to ChemPRIME that describe chemistry topics within various contexts, such as biological science, food chemistry, and everyday life. ChemPRIME is built using MediaWiki (the same platform used to build Wikipedia). ChemEd DL encourages users to add ChemEd DL videos to their own exemplars. MediaWiki does not allow full HTML code to be inserted, so the ChemEd DL community has created a MediaWiki extension that enables embedding videos. The extension is installed in ChemPRIME, so the code below allows you to add this video to a ChemPRIME page. More information is at ChemPRIME Help:Media. Contact us if you would like to use this MediaWiki extension on your own wiki.
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