Just as chemistry's periodic table of the elements goes from the lightest elements to the heaviest, these two posters—"Periodic Table of Caffeine and "Periodic Table of Snack Food"—arrange common food choices from least to most. The 18" x 24" laminated posters compare calories or caffeine content, and they are surefire discussion starters. Grades 6-12. Learning ZoneXpress. ©2007–09.
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