In this demo, a polyethylene strip is charged by rubbing with wool. The charged strip is then used to make paper circles stand on their edges inside a Petri dish. This demo introduces students to the charging of materials by induction as opposed to charging by contact.
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Categories: Gr 9-10 Science, Gr. 11-12 Chemistry
Add a drop of clear solution to a microscope slide containing a tiny piece of copper and create a beautiful, silver-branched holiday tree that grows before your very eyes! Click here to go to the... read more
Categories: Gr 9-10 Science
[embed]https://www.youtube.com/watch?v=CxC161GvMPc[/embed] Is it possible that overfishing, super germs, and global warming are all caused by the same thing? In 1968, a man named Garrett Hardin sat... read more
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
https://youtu.be/Q1blQRrM4TA We have a garbage problem. Wouldn't it make sense to throw that trash into the nearest volcano? Hosted by: Hank Green Support SciShow by becoming a patron on Patreon:... read more
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