Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
Email flinn@flinnsci.com
Adhesion Disk Demonstration for physical science and physics is an impressive hands-on demonstration of adhesive surface tension. Feel the force required to pull the disk free.

See more product details

Options:

(Select option to see volume pricing availability)

Product Details

An impressive hands-on demonstration of adhesive surface tension. Hang the 7.5-cm glass disk by its three precisely coordinated hanging cords over a container of liquid. Then let the disk rest on the surface of the liquid. Students can feel the force required to pull the disk free. For quantitative results, a spring scale can be used to measure the actual force and compare it to the weight of the disk alone. Different liquids can also be compared to determine their adhesive surface tension.