Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to, external forces like gravity. In this walking water experiment, liquid uses the ...

Explore the principles of hydrophobicity and surface tension by coating a straw to repel water. The experiment demonstrates how high contact angles and reduced capillary action affect the movement of ...

This experiment demonstrates capillary action - how water can climb up through tiny spaces in materials. You'll create a beautiful rainbow pattern while learning about the same process that helps ...