Compare the Caffeine Amount in Different Brand Tea Bags

Science Fair Project Information
Subject: Food Science
Grade level: Middle School - Grades 7-9
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Awards: None
Affiliation: Batesburg-Leesville High School (BLHS)
Description: Caffeine is extracted by adding a solution of saturated zinc acetate to tea bags placed into a beaker filled with boiling water and filtering it. The difference in the combined weight of the beaker, water and tea bag will be the amount of caffeine in the tea bag.
Links: http://scssi.scetv.org/mims/schools/blhs/science/y01/zacho1.htm