Capillary Tubes

Capillary Tubes for Education: Five Linked Glass Tubes Demonstrating Capillary Action

Capillary tubes – five different ones – connected to each other and mounted on a base, effectively illustrating capillary action (capillarity), adhesion and cohesion forces, the meniscus, and surface tension. The main part of this teaching aid is made of glass, while the base is made of plastic.