Skip Navigation

Physical Science of Water

Author(s): David R. Caprette, PhD

Demonstration, continued

1. Repeat the experiment, using isopropyl alcohol instead of water. 

2. Answer the same questions as before. Can you accumulate even close to the number of drops of alcohol as you did with water? Does the accumulating drop rise above the surface as the water did? 

3. Try to confine the growing drop to one place. 

4. Try to “beat” the force of gravity and pile drops on top of one another as you did with water. Can it be done? 

5. Clearly, there is something “special” about the structure of water. It shows a remarkable degree of surface tension, a property that we call cohesion.