| Type | Document | 
| Beschrijving | Sarah and Philip were taking a bath with Gelli Baff, a crystalline powder which is dumped into a bathtub filled with water. The viscous hydrogel was great fun. Now they want to drain the bathtub. How can they force the viscid stuff to go down the plughole? | 
| 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 10:17 | 
| Geüpdatet op | 24 mei 2016 10:17 | 
| Size | 897 KB |