| Type | Document | 
| Beschrijving | A 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. | 
| Onderwerpen | |
| Author | TEMI project group | 
| Uploaded by | Nicole | 
| License | Creative Commons Attribution-NonCommercial | 
| Attribute to | http://teachingmysteries.eu/en/about/?t=1 | 
| Taal | Taalonafhankelijk | 
| Gecreëerd op | 24 mei 2016 10:09 | 
| Geüpdatet op | 24 mei 2016 10:10 | 
| Size | 886 KB |