2A: Surface Tension
| Number/Name | Image | Description |
|---|---|---|
| 2A10.40 - Surface Reaction (soap/pepper) |  | This demonstration shows what happens to the surface when you put a drop of soap in water. |
| 2A20.10 - Capillary Tubes |  | This is a set of capillary tubes of various diameters used to show capillary rise with water. |