Will Bacteria Content Increase in a Water Bottle When It Is Not Properly Washed Between Uses?

Science Fair Project Information
Subject: Medicine
Grade level: Elementary School - Grades 4-6
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Awards: None
Affiliation: Selah Intermediate School
Description: In this experiment was compared the bacteria content of washed prior to refilled bottled water to not washed bottles prior of use. The bacteria content in the bottles was also compared according to the number of water refills.
Link: http://www.selah.k12.wa.us/SOAR/SciProj2004/MarisolG.html