Powder settled out of suspension at the bottom of a test tube of water. The powder is talcum powder and the experiment demonstrates that though insoluble materials can form a suspension when added to water in powdered form,the suspension will settle if the water is left undisturbed | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3425 px × 5119 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |