I run a science outreach program for 5th-grade that focuses on chemical and physical changes. The favorite experiment by far is the Foam Gnome! http://looseinthelabscience.com/foam-gnomes-materials/ ' target="_blank"> http://looseinthelabscience.com/foam-gnomes-materials/ " target="_blank" rel="nofollow"> http://looseinthelabscience.com/foam-gnomes-materials/ ' target="_blank"> http://loos...
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