Tracey Murphy
Posts: 1
Joined: Wed Nov 14, 2007 6:09 am

How to measure surface tension of water mixed with alcohol

Postby Tracey Murphy » Wed Nov 14, 2007 6:21 am

Alcohol is supposed to lower the surface tension of water but how can I measure this to get data for my science fair? I would like to use water as the control then be able to use water + alcohol, and water + oil. I've read that alcohol decreases the surface tension of water but how can I do an experiment to show this?

Any help you can offer would be appreciated.

Thank you :D

Craig_Bridge
Former Expert
Posts: 1297
Joined: Mon Oct 16, 2006 11:47 am

Postby Craig_Bridge » Wed Nov 14, 2007 7:33 am

Try putting "measuring surface tension" into your favorite search engine and you should find some hits on the newton site among others that will be useful background.
-Craig


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