URIhttp://vishub.org/officedocs/11843Chemical SeesawA balance is set up with two pieces of iron wool. One piece is set alight: it appears to be getting smaller but, mysteriously, the balance tips the other way.sciencephysicsmysteriesv2016.05.24finalauthorBEGIN:VCARD
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N:Nicole
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END:VCARD2016-05-24This date represents the date the resource was first created or published.URIhttp://vishub.org/activity_objects/27446/metadata.xmlcreatorBEGIN:VCARD
VERSION:3.0
N:Nicole
FN:Nicole
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