Science Buddies: "Ask an Expert"

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

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.