which gum brand lasts the longest science experiment

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1. Science fair bulletin board which gum flavor last the longest

   

2. unbeaten star: Which Gum Lasts The Longest Science Project

   

3. Science Fair Project: Which Chewing Gum Lasts the Longest?

   

4. Which Gum Brand Lasts the Longest?

   

5. Science Fair Project: Which Chewing Gum Lasts the Longest?

   

6. Science Fair Project: Which Chewing Gum Lasts the Longest?